CN114279833A - Electron irradiation in-situ stretching and compressing experimental device and method - Google Patents
Electron irradiation in-situ stretching and compressing experimental device and method Download PDFInfo
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Abstract
The invention provides an electron irradiation in-situ tensile compression experimental device and a method thereof, comprising the following steps: an electron accelerator for generating required irradiation electrons and an electron irradiation device connected with the electron accelerator; the three-dimensional positioning platform is arranged below the electronic irradiation device, and the material clamping assembly is mechanically connected with the three-dimensional positioning platform; the electromagnetic driving motor is mechanically connected with the three-dimensional positioning platform and generates tensile and compressive force; the force sensor is arranged between the three-dimensional positioning platform and the electromagnetic driving motor and is used for transmitting the tensile compression force generated by the electromagnetic driving motor and monitoring the transmission condition of the tensile force; the displacement monitor is arranged outside the electronic irradiation device and used for monitoring the displacement condition of the material; the multi-channel controller is arranged outside the electronic irradiation device and is used for controlling the electromagnetic driving motor and the three-dimensional positioning platform through a lead; the electron irradiation in-situ tensile compression test of the experimental material is realized by controlling the electromagnetic driving motor and the three-dimensional positioning platform through the multi-channel controller.
Description
Technical Field
The invention relates to mechanics experimental equipment, in particular to an electron irradiation in-situ tensile compression experimental device and method.
Background
The aerospace material needs to be in service in space for a long time and is subjected to complex space environment action, wherein the electron irradiation action is a common irradiation form, and in ground experiments, an equivalent injection method is commonly used for carrying out electron irradiation experiments. Therefore, the electron irradiation experiment has wide application in the field of aerospace material testing. The material may change various properties after being subjected to electron irradiation, and the change of mechanical properties is a key point of attention. In order to study the change of the mechanical properties of the material, a common method is to perform tensile compression experiments on material samples before and after irradiation and to perform comparison. In the process of carrying out the electron irradiation experiment, an operator must be far away from the electron irradiation device due to the radiation effect, and effective physical isolation exists between people and equipment. On the other hand, since strong interference exists on the electronic equipment in the electron irradiation process, data transmission of the electronic equipment such as the actuator and the sensor is interfered, and even normal work of the electronic equipment is influenced. In order to obtain data of mechanical property change before and after electron irradiation, the prior technical scheme is as follows: preparing a batch of experimental samples under the same condition, and performing a tensile compression experiment on a certain number of experimental samples which are not subjected to electron irradiation by using a universal material testing machine to obtain a group of experimental data; and then sending a certain amount of experimental samples to an electron irradiation device for electron irradiation with a certain dose, and performing a tensile compression experiment by using a universal material testing machine after the dose irradiation experiment is completed to obtain irradiated experimental data. The two sets of experimental data were then compared to verify whether electron irradiation had an effect on the change in mechanical properties of the experimental samples. There is a problem in that there is a certain requirement for the timeliness of taking out the test specimen for mechanical loading test, because the test specimen after irradiation may have "annealing" effect. There is currently no comprehensive systematic study disclosure of the specific aging effects of different materials, and the magnitude of the aging effects, and it is not possible for an experimenter to study each material due to cost issues. In addition, the electron accelerator and the electron irradiation device have complex structures and complicated operation steps, certain safe operation rules need to be followed, and the startup and shutdown cannot be carried out at will. Therefore, in the existing electron irradiation experiment, generally, only a certain dose or fluence of electron irradiation can be performed, and the irradiation intensity also needs to be set in advance. Thus, the effect of electron irradiation on the mechanical properties of the material yields data that are discrete. Furthermore, there are times when scientists need to study the coupling effect of pre-loading and electron irradiation. In the existing practical operation, an experimental sample is generally loaded in a designed mechanical device, then a mechanical load is applied in advance, then the experimental sample is put in an electronic irradiation device for irradiation, and after a certain dose of irradiation is finished, the experimental sample is taken out for mechanical loading. There is a problem in that the mechanical load applied is fixed and cannot be adjusted during irradiation.
The two methods have the problem that the timeliness influence and the fixed mechanical load caused by the annealing effect cannot be adjusted in the experimental process, and the related research on the influence of electronic irradiation on the mechanical property of the material is restricted. How to perform an in-situ mechanical loading experiment on a material in the process of receiving electron irradiation to obtain corresponding experimental data is a technical problem to be solved by the invention.
Disclosure of Invention
The invention provides an electron irradiation in-situ tensile compression experimental device and method, and provides the electron irradiation in-situ tensile compression experimental device and method based on the existing scientific research experiment requirements, so that mechanical load can be applied simultaneously in the electron irradiation process, the coupling effect of electron irradiation and mechanical load can be observed in situ, a real-time mechanical load action curve can be obtained, the action effect of electron irradiation on an experimental sample at different doses, irradiation intensities and the like can be observed, and the problem that the timeliness and fixed load of an electron irradiation effect experimental material cannot be adjusted in the electron irradiation experimental process due to the annealing effect in the prior art is solved.
The technical scheme provided by the invention is as follows:
in one aspect, an electron irradiation in-situ tensile compression experimental apparatus comprises:
an electron accelerator for generating required irradiation electrons and an electron irradiation device connected with the electron accelerator;
the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform are arranged below the electronic irradiation device;
the material clamping assembly is used for fixing experimental materials, the first end of the material clamping assembly is mechanically connected with the first XYZ three-dimensional positioning platform, and the second end of the material clamping assembly is mechanically connected with the second XYZ three-dimensional positioning platform;
an electromagnetic drive motor for generating a tensile force and a compressive force by a displacement action;
the first end of the force sensor is mechanically connected with the second XYZ three-dimensional positioning platform, the second end of the force sensor is mechanically connected with the electromagnetic driving motor, and the force sensor is used for transmitting the tensile force and the compressive force generated by the electromagnetic driving motor and monitoring the stress condition of the material;
the displacement monitor is arranged outside the electronic irradiation device and used for monitoring the displacement condition of the experimental material;
the multi-channel controller is arranged outside the electronic irradiation device and used for controlling the electromagnetic driving motor, the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform to work through a lead and receiving feedback data of the electromagnetic driving motor, the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform;
a computer provided with control software and data acquisition software;
in order to protect the electronic equipment from being influenced by an electronic irradiation device when the electronic equipment works, aluminum alloy shielding covers are respectively additionally arranged on the outer surfaces of the electromagnetic driving motor, the force sensor, the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform; the aluminum alloy object stage is used for bearing the experimental device.
Optionally, the displacement monitor comprises: laser displacement sensor and CCD camera.
Optionally, the mechanical connection mode of the material clamping assembly and the first XYZ three-dimensional positioning stage and the second XYZ three-dimensional positioning stage includes: a coaxial connection for parallel tensile compression of the test material and a non-coaxial connection for eccentric tensile compression of the test material.
Optionally, the material clamping assembly comprises: the frame is used for supporting the experimental material and is mechanically connected with the XYZ three-dimensional positioning platform; a connecting member for connecting the frame and the holder; a holder for holding the test material.
Optionally, the material is clamped by the clamp in the material clamping assembly in a manner that: mechanical fastening loading, magnetic clamping and vacuum adsorption clamping.
Optionally, the connecting member in the material clamping assembly includes: the rotating shaft connecting piece can rotate at any position.
Optionally, the material clamping assembly further comprises a battery piece, and the battery piece is fixed to the frame through the clamp, and is enabled to receive electron irradiation together with the experimental material, so as to monitor the electron irradiation dose intensity.
On the other hand, the electron irradiation in-situ tensile compression experiment method is used for carrying out the electron irradiation in-situ tensile compression experiment on the experimental material by using the electron irradiation in-situ tensile compression experiment device in any one of the technical schemes. The method comprises the following steps:
setting the electron irradiation dose, intensity, mechanical stretching speed and intensity of the experiment through control software installed by a computer;
fixing the experimental material by using a material clamping assembly;
sending an instruction to a multi-channel controller through a computer, starting electronic irradiation and mechanical stretching, and simultaneously carrying out state monitoring and data acquisition;
controlling a multi-channel controller to change the electron irradiation dose and the mechanical tensile speed strength through control software installed in a computer according to experimental requirements;
and finishing data acquisition after the experiment purpose is achieved, and finishing the experiment.
Optionally, the fixing the test material by using the material clamping assembly includes: the material clamping assemblies are arranged to be combined with an XYZ three-dimensional positioning platform, experimental materials are arranged into an experimental group and a control group and are fixed respectively.
The technical scheme provided by the application can comprise the following beneficial effects: the electron irradiation experiment and the tensile compression experiment are integrated, mechanical load is increased while the experimental material receives electron irradiation, and the influence of the electron irradiation on the mechanical property of the material in the electron irradiation process can be observed in situ; the shielding cover is added to necessary equipment, so that the reliability and the safety of the device are higher; the experimental material is not influenced by the annealing effect, and the continuous experimental data is obtained.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic diagram of an electron irradiation in-situ tensile compression experimental apparatus provided in this embodiment;
fig. 2 is a flowchart of an electron irradiation in-situ tensile compression experiment method according to the present embodiment;
fig. 3 is a structural diagram of a material clamping assembly of an electron irradiation in-situ tensile compression experimental apparatus according to the present embodiment;
fig. 4 is a schematic drawing illustrating a material clamping assembly of an electron irradiation in-situ tensile compression experimental apparatus according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating clamping and rotation of a material clamping assembly of an electron irradiation in-situ tensile compression experimental apparatus according to the present embodiment.
[ description of reference ]: 0-electron accelerator; 1-an electron irradiation device; 2-an aluminum alloy stage; 3-a material holding assembly; 4-a first XYZ three-dimensional positioning platform; 5-an electromagnetic drive motor; 6-a shielding case; 7-a displacement monitor; 8-a support frame; 9-a multi-channel controller; 10-a computer; 11-a second XYZ three-dimensional positioning platform; 12-a force sensor; 13-a shield; 31-a battery piece; 32-a holder; 33-a connector; 34-a frame; 35-distance marker.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
In order to solve the problem that the timeliness influence and the fixed mechanical load caused by the annealing effect cannot be adjusted in the experimental process, the present embodiment provides an electron irradiation in-situ tensile compression experimental apparatus and method, referring to fig. 1, an electron irradiation in-situ tensile compression experimental apparatus, including:
an electron accelerator 0 for generating required irradiation electrons and an electron irradiation device 1 connected with the electron accelerator;
a first XYZ three-dimensional positioning platform 4 and a second XYZ three-dimensional positioning platform 11 which are arranged below the electron irradiation device 1;
the material clamping assembly 3 is used for fixing experimental materials, the first end of the material clamping assembly is mechanically connected with the first XYZ three-dimensional positioning platform, and the second end of the material clamping assembly is mechanically connected with the second XYZ three-dimensional positioning platform;
an electromagnetic drive motor for generating a tensile force and a compressive force by a displacement action;
the force sensor 12 is mechanically connected with the second XYZ three-dimensional positioning platform 11 at a first end, is mechanically connected with the electromagnetic driving motor 5 at a second end, and is used for transmitting the tensile force and the compressive force generated by the electromagnetic driving motor 5 and monitoring the stress condition of the material;
a displacement monitor 7 arranged outside the electronic irradiation device 1 and used for monitoring the displacement condition of the experimental material;
the multi-channel controller 9 is arranged outside the electronic irradiation device 1 and is used for controlling the electromagnetic driving motor 5, the first XYZ three-dimensional positioning platform 4 and the second XYZ three-dimensional positioning platform 11 to work through a lead and receiving feedback data of the electromagnetic driving motor, the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform;
a computer 10 equipped with control software and data acquisition software;
in order to protect the electronic equipment from being influenced by the electronic irradiation device 1 when the electronic equipment works, shielding cases 13 are respectively additionally arranged on the outer surfaces of the electromagnetic driving motor 5, the force sensor 12, the first XYZ three-dimensional positioning platform 4 and the second XYZ three-dimensional positioning platform 11, and preferably, the shielding cases are made of aluminum alloy;
and the aluminum alloy object stage 2 is used for bearing the experimental device.
When the embodiment is used, the electron accelerator generates stable high-energy electron beam current, the electron irradiation device irradiates on the material clamping component, the lower part of the material clamping component is opposite to and fixed with experimental materials, the material clamping component changes the position through the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform which are mechanically connected with the material clamping component, so that the irradiated position of the experimental materials is controlled, the left end of the second XYZ three-dimensional platform is connected with the material clamping component, the right end of the second XYZ three-dimensional platform is connected with the electromagnetic driving motor, a force sensor is arranged between the material clamping component and the electromagnetic driving motor, the shaft body of the electromagnetic driving motor transversely moves, so that tensile force or compression force is applied to the second XYZ three-dimensional positioning platform, force is transmitted to the material clamping component which is mechanically connected with the electromagnetic driving motor, and the experimental materials are stressed. The two XYZ three-dimensional positioning platforms, the electromagnetic driving motor and the electronic irradiation device are controlled by the multi-channel controller, the dose and the intensity of an electron beam, the position of the three-dimensional positioning platform and the force applied by the electromagnetic driving motor are changed, and the purpose of simultaneously carrying out an in-situ mechanical loading experiment and obtaining corresponding experiment data in the process of researching the electronic irradiation is achieved.
The specific embodiment can have the following beneficial effects: the electron irradiation experiment and the tensile compression experiment are integrated, mechanical load is increased while the experiment material is subjected to electron irradiation, and the influence of electron irradiation on the mechanical property of the material in the electron irradiation process can be observed in situ; the shielding cover is added to necessary equipment, so that the reliability and the safety of the device are higher; the experimental material is not influenced by the annealing effect, and the continuous experimental data is obtained.
In a preferred embodiment, the material holding assembly 3 has a position mark with a fixed distance for assisting the displacement monitor 7 to measure the displacement, and preferably, the position mark is attached to the material holding assembly by electroplating. So set up, through the mode accurate observation experimental materials deformation and the displacement that sets up the reference object, make the experimental data more accurate.
Referring to fig. 1, in some embodiments, the displacement monitor 7 includes: laser displacement sensor and CCD camera. The laser displacement sensor can measure the deformation and displacement of an experimental material by laser ranging matching with position marks, laser speckles are sprayed on the battery piece material clamping assembly, the whole stretching and compressing process is observed through an electric coupling device camera to form an experimental video, DIC software is used for processing images to obtain the deformation of the battery piece, and finally the whole full-field strain cloud picture of the battery piece can be obtained. So set up, make things convenient for the experimenter to observe experimental materials atress deformation process.
In some embodiments, the mechanical connection of the material holding assembly 3 to the first XYZ stage 4 and the second XYZ stage 11 comprises: a coaxial connection for parallel tensile compression of the test material and a non-coaxial connection for eccentric tensile compression of the test material. When the material clamping assembly is coaxially connected with the XYZ three-dimensional positioning platform, the stress direction of the experimental material is parallel to the axis of the material clamping assembly, and when the electromagnetic driving motor applies tensile compression force, the experimental material is stretched or compressed in parallel; when the material clamping assembly is in non-coaxial connection with the XYZ three-dimensional positioning platform, the stress direction of the experimental material is intersected with the axis of the material clamping assembly, and when the electromagnetic driving motor applies tensile compression force, the experimental material is eccentrically stretched and compressed. According to the arrangement, multiple mechanical loading modes are provided, so that the device can complete more comprehensive experiment types, and the obtained data has scientific research value.
Referring to fig. 3, in some embodiments, the material gripping assembly 3 comprises: a frame 34 for supporting the test material and mechanically connected to the XYZ three-dimensional positioning stage; a connector for connecting the frame 34 and the holder 32; a holder 21 for holding the test material. The experimental material passes through the holder to be fixed on the frame, and the frame passes through connecting piece and XYZ three-dimensional positioning platform mechanical connection to transmission tensile force and compressive force, so setting up, the device is succinct reliable, and the experimental material is placed easily and is taken off.
Referring to fig. 3, in some embodiments, the material is clamped by the clamp 32 in the material clamping assembly 3 in a manner including: mechanical fastening loading, magnetic clamping and vacuum adsorption clamping. The clamping mode provided by the clamp holder in the material clamping component is mechanically fastened and loaded, and the experimental material is fixed on the clamping component frame through common mechanical modes such as bolts, clamps and the like; or the materials are fastened by the principle of opposite attraction of the magnetic materials; when experimental materials are not easy to be clamped through the two modes, the experimental materials can be adsorbed on the material clamping assembly through a vacuumizing mode. So set up, the experimental condition that the experimental material of multiple centre gripping mode satisfied different physical properties needs satisfied makes the experimentation more rigorous, and the experimental result is more reasonable accurate.
Referring to fig. 3, in some embodiments, the material holding assembly 3 further includes a battery plate, which is fixed to the frame by the holder and receives electron irradiation together with the test material. The cell slice receives electron irradiation to generate electric energy change. So set up, through monitoring the electric energy change and then monitor the experimental material and receive irradiation dose and intensity, further, whether the experimenter accessible monitoring battery piece is invalid judges current experiment process and whether continues the experiment.
Referring to fig. 5, in some embodiments, the connector in the material gripping assembly comprises: the rotating shaft connecting piece can rotate at any position. In the process of carrying out an electron irradiation in-situ stretching and compressing experiment, the experimental material clamped on the frame can rotate at any angle along with the frame through the rotating shaft connecting piece and stay at the position angle; in fig. 5, schematic diagrams of two states of 0 ° and 90 ° are given, and in the actual use process, the rotating shaft connecting piece can arbitrarily adjust the irradiation angle of the experimental material by the electron beam, so that the device meets more complex experimental conditions, and more experimental methods are realized.
Referring to fig. 2, an electron irradiation in-situ tensile compression experiment method is used for performing an electron irradiation in-situ tensile compression experiment on an experimental material by using the electron irradiation in-situ tensile compression experiment apparatus according to any one of the above technical solutions. The method comprises the following steps:
s101, setting the electron irradiation dose, the intensity, the mechanical stretching speed and the intensity of an experiment through control software installed in a computer 10;
s102, fixing the experimental material by using the material clamping component 3;
s103, sending an instruction to the multi-channel controller 9 through the computer 10, starting electronic irradiation and mechanical stretching, and simultaneously carrying out state monitoring and data acquisition;
s104, controlling a multi-channel controller to change the electron irradiation dose and the mechanical tensile speed strength through control software installed in the computer 10 according to experimental requirements;
and S105, completing data acquisition after the experiment purpose is achieved, and ending the experiment.
The specific flow of the specific embodiment is as follows: the method comprises the steps of firstly starting an experimental device, starting an electron accelerator and an electron irradiation device, setting pre-loaded electron irradiation dose intensity required by an experiment and mechanical tensile compression speed and intensity provided by an electromagnetic drive motor by using control software installed by a computer, then fixing the pre-loaded electron irradiation dose intensity and the mechanical tensile compression speed and intensity provided by the electromagnetic drive motor through a material clamping assembly according to experiment requirements to receive electron irradiation, controlling a multi-channel controller through the computer after the multi-channel controller is ready, driving each controlled device to start working by the multi-channel controller, subsequently controlling the multi-channel controller to change the electron irradiation dose and the tensile compression speed intensity through the computer by an operator according to the experiment requirements, finishing the experiment and closing the device after the experiment purpose is achieved.
The specific embodiment provides beneficial effects including: the material receives electronic irradiation and applies mechanical load to the material simultaneously so as to observe the coupling effect of the electronic irradiation and the mechanical load in situ, obtain a real-time mechanical load action curve, observe the action effect of the electronic irradiation on an experimental sample at different doses, irradiation intensities and the like, and solve the problem that the timeliness and the fixed load of the experimental material cannot be adjusted in the experimental process due to the annealing effect in the prior art.
In some embodiments, the fixing the test material using the material holding assembly 3 includes: the material clamping assemblies are arranged to be combined with an XYZ three-dimensional positioning platform, experimental materials are arranged into an experimental group and a control group and are fixed respectively. Set up multiunit contrast group and experiment group and carry out the experiment, so set up, can accomplish multiunit contrast experiment, make experimental efficiency higher, the maximize utilizes the electron beam that electron irradiation device produced simultaneously.
The specific embodiments provided by the present application may include the following advantageous effects: the electron irradiation experiment and the stretching and compressing experiment are integrated together, so that the influence of electron irradiation on the mechanical property of the material in the electron irradiation process can be observed in situ; the shielding cover is added to necessary equipment, so that the reliability and the safety of the device are higher; the experimental material is not influenced by annealing effect, and the continuous experimental data is obtained, so that the method is more efficient than the common experimental method.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (9)
1. An electron irradiation in-situ tension and compression experimental device comprises:
an electron accelerator (0) for generating required irradiation electrons and an electron irradiation device (1) connected with the electron accelerator;
a first XYZ three-dimensional positioning platform (4) and a second XYZ three-dimensional positioning platform (11) which are arranged below the electron irradiation device (1);
the material clamping assembly (3) is used for fixing an experimental material, the first end of the material clamping assembly is mechanically connected with the first XYZ three-dimensional positioning platform (4), and the second end of the material clamping assembly is mechanically connected with the second XYZ three-dimensional positioning platform (11);
an electromagnetic drive motor (5) for generating a tensile force and a compressive force;
the first end of the force sensor is mechanically connected with a second XYZ three-dimensional positioning platform (11), the second end of the force sensor is mechanically connected with an electromagnetic driving motor (5), and the force sensor (12) is used for transmitting tensile force and compression force generated by the electromagnetic driving motor (5) and monitoring the stress condition of a material;
a displacement monitor (7) arranged outside the electronic irradiation device (1) and used for monitoring the displacement condition of the experimental material;
the multi-channel controller (9) is arranged outside the electronic irradiation device (1) and is used for controlling the electromagnetic driving motor (5), the first XYZ three-dimensional positioning platform (4) and the second XYZ three-dimensional positioning platform (11) to work through a lead and receiving feedback data of the electromagnetic driving motor, the first XYZ three-dimensional positioning platform and the second XYZ three-dimensional positioning platform;
a computer (10) provided with control software and data acquisition software;
in order to protect the electronic equipment from being influenced by the electronic irradiation device (1) when in work, shielding covers (13) are respectively additionally arranged on the outer surfaces of the electromagnetic driving motor (5), the force sensor (12), the first XYZ three-dimensional positioning platform (4) and the second XYZ three-dimensional positioning platform (11);
an aluminum alloy objective table (2) for bearing the experimental device.
2. The electron irradiation in-situ tensile compression experimental apparatus according to claim 1, wherein the displacement monitor (7) comprises: laser displacement sensor and CCD camera.
3. The electron irradiation in-situ tension and compression experimental apparatus as claimed in claim 1, wherein the mechanical connection manner of the material holding assembly (3) with the first XYZ three-dimensional positioning platform (4) and the second XYZ three-dimensional positioning platform (11) comprises: a coaxial connection for parallel tensile compression of the test material and a non-coaxial connection for eccentric tensile compression of the test material.
4. The electron irradiation in-situ tensile compression experimental apparatus according to claim 1, wherein the material clamping assembly (3) comprises: a frame (34) for supporting the test material and mechanically connected to the XYZ three-dimensional positioning stage; a holder (32) for holding the test material; a connecting member (33) for connecting the frame and the holder.
5. The electron irradiation in-situ tension-compression experimental apparatus as claimed in claim 4, wherein the material clamping manner of the clamper (32) in the material clamping assembly (3) comprises: mechanical fastening loading, magnetic clamping and vacuum adsorption clamping.
6. The electron irradiation in-situ tensile compression experimental apparatus according to claim 4, wherein the connecting member (33) in the material clamping assembly (3) comprises: the rotating shaft connecting piece can rotate at any position.
7. The electron irradiation in-situ tensile compression experimental apparatus according to claim 4, wherein the material clamping assembly (3) further comprises a battery piece (31), the battery piece (31) is fixed with the frame (34) through the clamping device (32) and is subjected to electron irradiation together with the experimental material for monitoring the electron irradiation dose intensity.
8. An electron irradiation in-situ tensile compression experiment method, which is characterized in that an electron irradiation in-situ tensile compression experiment on an experiment material is carried out by using the electron irradiation in-situ tensile compression experiment device of any one of claims 1 to 7, and comprises the following steps:
the electron irradiation dose, the intensity, the mechanical stretching speed and the mechanical stretching intensity of the experiment are set through control software installed in a computer (10);
fixing the experimental material by using a material clamping component (3);
sending an instruction to a multi-channel controller (9) through a computer (10), starting electronic irradiation and mechanical stretching, and simultaneously carrying out state monitoring and data acquisition;
controlling a multi-channel controller to change the electron irradiation dose and the mechanical tensile speed strength through control software installed in a computer (10) according to experimental requirements;
and finishing data acquisition after the experiment purpose is achieved, and finishing the experiment.
9. The electron irradiation in-situ tensile compression test method according to claim 8, wherein the fixing the test material by the material clamping assembly (3) comprises: the material clamping assemblies are arranged to be combined with an XYZ three-dimensional positioning platform, experimental materials are arranged into an experimental group and a control group and are fixed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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