CN113777135A - Monitoring and repairing structure, monitoring method and repairing method for interlayer cracking of fiber-reinforced thermosetting resin-based composite material - Google Patents
Monitoring and repairing structure, monitoring method and repairing method for interlayer cracking of fiber-reinforced thermosetting resin-based composite material Download PDFInfo
- Publication number
- CN113777135A CN113777135A CN202111176420.1A CN202111176420A CN113777135A CN 113777135 A CN113777135 A CN 113777135A CN 202111176420 A CN202111176420 A CN 202111176420A CN 113777135 A CN113777135 A CN 113777135A
- Authority
- CN
- China
- Prior art keywords
- fiber
- monitoring
- fiber cloth
- layers
- composite material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/02—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using liquid or paste-like material
Abstract
The embodiment of the application discloses a monitoring and repairing structure, a monitoring method and a repairing method for interlayer cracking of a fiber reinforced thermosetting resin matrix composite material, wherein the monitoring and repairing structure comprises the following components: at least two layers of fiber cloth which are sequentially arranged in a stacked manner, wherein a plurality of connecting units are arranged on the surfaces which are opposite to each other between every two adjacent fiber cloth; a conductive nanomaterial layer disposed between every two adjacent fiber cloths; the thermosetting matrix is used for solidifying the fiber cloth and the conductive nano material layer into a unified whole; wherein, the conductive nanometer material layer draws out an electrode for electric connection; the fiber cloth is arranged to be made up of at least one subset of fibers, each subset of fibers comprising a pair of fiber cloths arranged adjacently. According to the invention, the interlayer cracking damage of the composite material can be monitored and repaired on the premise of enhancing the interlayer performance and maintaining the overall performance of the composite material.
Description
Technical Field
The invention relates to the field of composite materials, in particular to a structure, a method and a method for monitoring and repairing interlayer cracking of a fiber reinforced thermosetting resin-based composite material.
Background
The fiber reinforced thermosetting resin-based composite material is an advanced composite material, and is widely applied to indispensable strategic materials in advanced equipment such as military aircrafts, spacecrafts, rockets and the like in the field of national defense due to excellent mechanical property; the composite material is widely used in the civil field in the important positions of automobiles, chemical engineering, buildings, medical treatment and the like which are related to daily life. With the continuous development of science and technology, various researches and improvements aiming at fiber reinforced composite materials emerge endlessly, wherein one key factor is the interlayer performance of the composite materials made of fibers.
The fiber composite board has the advantages that the tensile strength and the compressive strength of the fiber composite board are greatly enhanced due to the existence of fibers in the surface, but no fibers exist between the surface and the surface, the corresponding strength is provided only by virtue of resin, so that the relatively fragile area between layers is caused, and the interlayer cracking also becomes one of the most frequently encountered damage conditions of the carbon fiber composite board in use. Therefore, a method capable of monitoring and repairing interlayer cracking without damaging the performance of the whole carbon fiber plate on the premise of meeting the complexity of the use environment of the carbon fiber composite material and enhancing the performance between carbon fiber plate layers is needed.
In view of the above, there is a need to develop a structure, a method and a method for monitoring and repairing the interlayer cracking of a fiber reinforced thermosetting resin based composite material, so as to solve the above problems.
Disclosure of Invention
The embodiment of the application provides a structure, a method and a method for monitoring and repairing cracking between fiber reinforced thermosetting resin matrix composite layers, which can monitor and repair the cracking damage between the composite layers on the premise of enhancing the performance between the layers and keeping the overall performance of the composite.
In order to solve the above technical problem, an embodiment of the present application discloses the following technical solutions:
on the one hand, the utility model provides a monitoring and repair structure of fibre reinforced thermosetting resin based composite material interlayer fracture, includes:
at least two layers of fiber cloth which are sequentially arranged in a stacked manner, wherein a plurality of connecting units are arranged on the surfaces which are opposite to each other between every two adjacent fiber cloth;
a conductive nanomaterial layer disposed between every two adjacent fiber cloths; and
the thermosetting matrix is used for solidifying the fiber cloth and the conductive nano material layer into a unified whole;
wherein, the conductive nanometer material layer draws out an electrode for electric connection; the fiber cloth is arranged to be composed of at least one fiber subset, each fiber subset comprises a pair of fiber cloths which are adjacently arranged, and each connecting unit on one fiber cloth in each fiber subset is connected with one corresponding connecting unit on the other fiber cloth.
Optionally, the coupling unit is arranged on the surface of the fiber cloth; the distribution density of the connecting units is controlled to be 10-200 connecting units per square centimeter.
Optionally, defining: the linear distance direction between two adjacent layers of fiber cloth is longitudinal, and the longitudinal thickness of the connecting unit is consistent with that of the fiber cloth.
Optionally, defining: the ratio of the projection area of the conductive nano material on the fiber cloth to the whole area of the fiber cloth is distribution density, so that the conductive nano material layer is uniformly distributed, and the distribution density is controlled to be 20-80%.
Optionally, the electrodes are made of conductive nanomaterial coated on both sides of the fiber cloth.
Optionally, the monitoring structure is any one of a planar plate-shaped structure, an arc-shaped plate-shaped structure and a circular tube-shaped structure.
Optionally, the fiber used in the fiber cloth is at least one of carbon fiber, boron fiber, aramid fiber or silicon carbide fiber.
Optionally, the coupling unit is made of a thermoplastic material.
On the other hand, the method for monitoring the interlayer cracking of the fiber reinforced thermosetting resin-based composite material comprises the following steps:
step S1, attaching the connection units on the surfaces of every two adjacent fiber cloths opposite to each other, and uniformly arranging the conductive nano materials on the surfaces of every two adjacent fiber cloths opposite to each other to manufacture a fiber board with a preset shape;
step S2, electrically connecting an external power supply with the electrode;
and step S3, after electrifying, by monitoring the change amplitude of the electric signal of the external power supply, if the change amplitude of the electric signal exceeds a preset threshold value, judging that the interlayer cracks.
In another aspect, a method for repairing interlayer cracks of a fiber reinforced thermosetting resin-based composite material is provided, which comprises the following steps:
step T1, attaching the connection units on the surfaces of the adjacent fiber cloths opposite to each other, and uniformly arranging the conductive nano-materials on the surfaces of the adjacent fiber cloths opposite to each other to manufacture the fiber board with a preset shape;
a step T2 of electrically connecting an external power supply to the electrode;
step T3, after the power is switched on, by monitoring the change amplitude of the electric signal of the external power supply, if the change amplitude of the electric signal exceeds a preset threshold value, the interlayer is judged to crack;
step T4, applying voltage to the monitoring structure by using an external power supply, and melting the thermoplastic coupling units in the cracking layers and filling the thermoplastic coupling units in the whole cracking gaps in a flowing manner by using electric heat generated by the conductive nano materials in the cracking layers;
and T5, turning off the external power supply, and completing the corresponding repair work after the thermoplastic material is cooled and solidified.
Optionally, in the step T5, the temperature of the thermoplastic material is decreased at a slow rate by controlling the current attenuation rate of the external power supply, so as to avoid the defects of cracking, warping and the like of the thermoplastic material in the cooling process due to an excessively fast cooling speed, and the corresponding repair work is completed after the thermoplastic material is cooled and solidified.
One of the above technical solutions has the following advantages or beneficial effects: the interlayer crack damage monitoring and repairing method can monitor and repair the interlayer crack damage of the composite material on the premise of enhancing the interlayer performance and keeping the overall performance of the composite material.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description relate only to some embodiments of the present invention and are not limiting thereof, wherein:
FIG. 1 is a surface distribution diagram of a fiber cloth in a structure for monitoring and repairing interlayer cracking of a fiber reinforced thermosetting resin-based composite material provided by an embodiment of the invention;
FIG. 2 is a schematic view illustrating mutual hooking between fiber board layers in a structure for monitoring and repairing interlayer cracking of a fiber reinforced thermosetting resin-based composite material according to an embodiment of the present invention;
FIG. 3 is a schematic view of a monitoring circuit in a structure for monitoring and repairing interlayer cracking of a fiber reinforced thermosetting resin based composite material according to an embodiment of the present invention;
fig. 4 is a schematic view of interlayer electrothermal repair in a monitoring and repairing structure for interlayer cracking of a fiber reinforced thermosetting resin based composite material according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.
Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
Example one
Referring to fig. 1 and fig. 2, fig. 1 shows a surface distribution diagram of a fiber cloth in a structure for monitoring and repairing inter-layer cracks of a fiber reinforced thermosetting resin-based composite material provided by an embodiment of the present invention, and fig. 2 shows a schematic diagram of mutual hooking between fiber board layers in a structure for monitoring and repairing inter-layer cracks of a fiber reinforced thermosetting resin-based composite material provided by an embodiment of the present invention. In fig. 1, 1 denotes a fiber cloth, 2 denotes a coupling unit attached to a surface of the fiber cloth, and 3 denotes a conductive nanomaterial attached to a surface of the fiber cloth.
The monitoring and repairing structure provided by the embodiment can expand the distribution mode of more fiber cloth surface connecting units, can purposefully control the local distribution density of the connecting units to achieve the purpose of better preventing cracking, and can adjust the distribution density or the distribution mode of the corresponding conductive nano material to achieve better electric conduction. Specifically, the monitoring and repairing structure of the interlaminar cracking of the fiber reinforced thermosetting resin matrix composite material comprises:
at least two layers of fiber cloth which are sequentially arranged in a stacked manner, wherein a plurality of connecting units are arranged on the surfaces which are opposite to each other between every two adjacent fiber cloth;
a conductive nanomaterial layer disposed between every two adjacent fiber cloths; and
the thermosetting matrix is used for solidifying the fiber cloth and the conductive nano material layer into a unified whole;
wherein, the conductive nanometer material layer draws out an electrode for electric connection; the fiber cloth is arranged to be composed of at least one fiber subset, each fiber subset comprises a pair of fiber cloths which are adjacently arranged, and each connecting unit on one fiber cloth in each fiber subset is connected with one corresponding connecting unit on the other fiber cloth.
Further, the coupling unit is disposed on a surface of the fiber cloth; the distribution density of the connecting units is controlled to be 10-200 connecting units per square centimeter.
Further, defining: the linear distance direction between two adjacent layers of fiber cloth is longitudinal, and the longitudinal thickness of the connecting unit is consistent with that of the fiber cloth.
Further, defining: the ratio of the projection area of the conductive nano material on the fiber cloth to the whole area of the fiber cloth is distribution density, so that the conductive nano material layer is uniformly distributed, and the distribution density is controlled to be 20-80%.
Further, the electrodes are made of conductive nano materials coated on both sides of the fiber cloth.
Further, the monitoring structure is any one of a planar plate-shaped structure, an arc-shaped plate-shaped structure and a circular tube-shaped structure.
Further, the fiber used by the fiber cloth is at least one of carbon fiber, boron fiber, aramid fiber or silicon carbide fiber.
Further, the coupling unit is made of a thermoplastic material.
Referring to fig. 1, the fiber cloth surface coupling units 2 and the conductive nanomaterial 3 are uniformly distributed throughout the fiber cloth surface 1. In actual use, the distribution of the fiber cloth surface connecting units 2 can be focused on the periphery of the fiber cloth or an area with easy interface cracking on one side aiming at different conditions; the distribution of the conductive nano material 3 can be increased or decreased along with the change of the distribution density of the connecting units, and the conductive nano material is distributed on the whole surface of the fiber cloth, so that whether the fiber plate layers crack or not can be judged through an electric signal between any two points. By the design, on one hand, the interface strength of the fiber board can be enhanced; on the other hand, the electric signal detection of the easy-cracking area is more sensitive, and meanwhile, the interface repair is more convenient.
Referring to fig. 2, the connection mode between every two connection units 3 can be selected from hooking, nesting, adsorption and other modes, and the structural size of the connection units meets the requirement that stress concentration caused by large deformation of each layer of the fiberboard is avoided. In fig. 2, 1 denotes a fiber cloth, 4 denotes a conductive path made of a conductive nanomaterial on the surface of an adjacent fiber cloth, and 2 denotes a connecting unit connecting the adjacent fiber cloths to each other. The conductive path 4 formed by the conductive nano-material attached to the surface where the adjacent fiber cloths are connected is used for monitoring whether the interlayer structure is damaged.
In fig. 3, 5 denotes a resistance box for monitoring electric signals, 6 denotes a fiber board cured according to the present invention 7 denotes a connection area with an external power source formed by coating conductive silver or other conductive materials, and 8 denotes a lead wire.
Referring to fig. 3, after polishing the two sides of the fiber board, a certain amount of conductive material can be coated to form a connection point 3, wherein the polishing is performed to expose the conductive nanomaterial between the fiber layers, and the coating of the conductive material is performed to form a path between the external power supply and the conductive nanomaterial between all the layers of the fiber, so that an electrical signal is smooth, and the fluctuation of the electrical signal caused by poor contact is avoided. After the electric signal is stable, the cracking condition between layers can be judged according to the electric signal.
In use, the area to be monitored, and the location of the application of the conductive material, may be selected according to the respective fiberboard shape specification. The conductive nano material positioned between fiber layers can be expected to be an important factor in the electric signal monitoring, so that the electric signals monitored at different positions are changed. The continuity of the conductive nano material between the layers is damaged due to the cracking between the fiber layers, and the resistance current signals of the conductive nano material are changed, so that different electric signals can be selected as monitoring modes during monitoring.
In fig. 4, 9 denotes an adjustable power box, 8 denotes a lead wire, 7 denotes a power connection region formed by polishing both sides of the fiberboard and then coating a conductive material, and 6 denotes the fiberboard with interlayer cracks.
After the interlayer cracking is monitored through the graph 3 or other methods, the corresponding current voltage is adjusted to enable the conductive nano materials distributed among the fiber plate layers to generate electric heating, the generated electric heating enables the thermoplastic connecting units distributed beside the conductive nano materials to be melted to form viscous liquid, and the liquid can automatically fill the cracked area among the fiber plate layers. This way, the process of refilling the thermoplastic resin and the possible generation of air bubbles during the filling process are avoided. And after the crack area is filled, controlling the regular attenuation of the current signal to slowly solidify the resin. The regularly attenuated current can ensure that the curing time of the resin between layers is the same so as to avoid the conditions of interlayer defects, stress concentration and the like caused by the difference of the curing time.
In practice, due to the existence of the interlayer conductive nano material and the thermoplastic connecting unit, the circuit connection and disconnection area can be adjusted, and then the area heated by taking electric heating as a heating mode is controlled, so that the structure of the rest parts except the area to be heated can not be greatly influenced.
Example two
The embodiment provides a method for monitoring interlayer cracking of a fiber reinforced thermosetting resin-based composite material, which comprises the following steps:
step S1, attaching the connection units on the surfaces of every two adjacent fiber cloths opposite to each other, and uniformly arranging the conductive nano materials on the surfaces of every two adjacent fiber cloths opposite to each other to manufacture a fiber board with a preset shape;
step S2, electrically connecting an external power supply with the electrode;
and step S3, after electrifying, by monitoring the change amplitude of the electric signal of the external power supply, if the change amplitude of the electric signal exceeds a preset threshold value, judging that the interlayer cracks.
The function of monitoring and repairing the interlayer cracking of the fiber reinforced thermosetting resin-based composite material used in this embodiment corresponds to the function realized in the first embodiment, so other functions of this embodiment can be referred to in the first embodiment, and are not described in detail herein.
EXAMPLE III
The embodiment provides a method for repairing interlayer cracking of a fiber reinforced thermosetting resin-based composite material, which comprises the following steps:
step T1, attaching the connection units on the surfaces of the adjacent fiber cloths opposite to each other, and uniformly arranging the conductive nano-materials on the surfaces of the adjacent fiber cloths opposite to each other to manufacture the fiber board with a preset shape;
a step T2 of electrically connecting an external power supply to the electrode;
step T3, after the power is switched on, by monitoring the change amplitude of the electric signal of the external power supply, if the change amplitude of the electric signal exceeds a preset threshold value, the interlayer is judged to crack;
step T4, applying voltage to the monitoring structure by using an external power supply, and melting the thermoplastic coupling units in the cracking layers and filling the thermoplastic coupling units in the whole cracking gaps in a flowing manner by using electric heat generated by the conductive nano materials in the cracking layers;
and T5, turning off the external power supply, and completing the corresponding repair work after the thermoplastic material is cooled and solidified.
Further, in the step T5, the temperature of the thermoplastic material is decreased at a slow rate by controlling the current attenuation rate of the external power supply, so as to avoid the defects of cracking, warping and the like of the thermoplastic material in the cooling process due to an excessively fast cooling rate, and the corresponding repair work is completed after the thermoplastic material is cooled and solidified.
The function of monitoring and repairing the interlayer cracking of the fiber reinforced thermosetting resin-based composite material used in this embodiment corresponds to the function realized in the first embodiment, so other functions of this embodiment can be referred to in the first embodiment, and are not described in detail herein.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
The features of the different implementations described herein may be combined to form other embodiments not specifically set forth above. The components may be omitted from the structures described herein without adversely affecting their operation. Further, various individual components may be combined into one or more individual components to perform the functions described herein.
Furthermore, while embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in a variety of fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a monitoring and restoration structure of fibre reinforcement thermosetting resin base combined material interlayer fracture which characterized in that includes:
at least two layers of fiber cloth which are sequentially arranged in a stacked manner, wherein a plurality of connecting units are arranged on the surfaces which are opposite to each other between every two adjacent fiber cloth;
a conductive nanomaterial layer disposed between every two adjacent fiber cloths; and
the thermosetting matrix is used for solidifying the fiber cloth and the conductive nano material layer into a unified whole;
wherein, the conductive nanometer material layer draws out an electrode for electric connection; the fiber cloth is arranged to be composed of at least one fiber subset, each fiber subset comprises a pair of fiber cloths which are adjacently arranged, and each connecting unit on one fiber cloth in each fiber subset is connected with one corresponding connecting unit on the other fiber cloth.
2. The structure for monitoring and repairing cracks between layers of a fiber reinforced thermosetting resin based composite material according to claim 1, wherein the coupling unit is disposed on the surface of the fiber cloth; the distribution density of the connecting units is controlled to be 10-200 connecting units per square centimeter.
3. The structure for monitoring and repairing cracks between layers of a fiber reinforced thermosetting resin based composite material according to claim 1, wherein: the linear distance direction between two adjacent layers of fiber cloth is longitudinal, and the longitudinal thickness of the connecting unit is consistent with that of the fiber cloth.
4. The structure for monitoring and repairing cracks between layers of a fiber reinforced thermosetting resin based composite material according to claim 1, wherein: the ratio of the projection area of the conductive nano material on the fiber cloth to the whole area of the fiber cloth is distribution density, so that the conductive nano material layer is uniformly distributed, and the distribution density is controlled to be 20-80%.
5. The structure for monitoring and repairing cracks between layers of fiber reinforced thermosetting resin based composite material according to claim 1, wherein the electrodes are made of conductive nano material coated on both sides of the fiber cloth.
6. The structure for monitoring and repairing cracks among layers of the fiber reinforced thermosetting resin-based composite material as claimed in any one of claims 1 to 5, wherein the fiber used by the fiber cloth is at least one of carbon fiber, boron fiber, aramid fiber or silicon carbide fiber.
7. The structure for monitoring and repairing cracks between layers of a fiber reinforced thermosetting resin based composite material according to any one of claims 1 to 5, wherein the linking unit is made of a thermoplastic material.
8. A monitoring method for interlayer cracking monitoring by using the monitoring structure of any one of claims 1 to 7, characterized by comprising the following steps:
step S1, attaching the connection units on the surfaces of every two adjacent fiber cloths opposite to each other, and uniformly arranging the conductive nano materials on the surfaces of every two adjacent fiber cloths opposite to each other to manufacture a fiber board with a preset shape;
step S2, electrically connecting an external power supply with the electrode;
and step S3, after electrifying, by monitoring the change amplitude of the electric signal of the external power supply, if the change amplitude of the electric signal exceeds a preset threshold value, judging that the interlayer cracks.
9. A method of repairing interlayer cracks using the monitoring structure of any one of claims 1 to 8, comprising the steps of:
step T1, attaching the connection units on the surfaces of the adjacent fiber cloths opposite to each other, and uniformly arranging the conductive nano-materials on the surfaces of the adjacent fiber cloths opposite to each other to manufacture the fiber board with a preset shape;
a step T2 of electrically connecting an external power supply to the electrode;
step T3, after the power is switched on, by monitoring the change amplitude of the electric signal of the external power supply, if the change amplitude of the electric signal exceeds a preset threshold value, the interlayer is judged to crack;
step T4, applying voltage to the monitoring structure by using an external power supply, and melting the thermoplastic coupling units in the cracking layers and filling the thermoplastic coupling units in the whole cracking gaps in a flowing manner by using electric heat generated by the conductive nano materials in the cracking layers;
and T5, turning off the external power supply, and completing the corresponding repair work after the thermoplastic material is cooled and solidified.
10. The repair method according to claim 9, wherein in step T5, the temperature of the thermoplastic material is decreased at a slow rate by controlling the current decay rate of the external power supply, so as to avoid the occurrence of cracking and warping during the cooling process of the thermoplastic material due to the excessively fast cooling rate, and the corresponding repair work is completed after the thermoplastic material is cooled and solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176420.1A CN113777135B (en) | 2021-10-09 | 2021-10-09 | Monitoring and repairing structure, monitoring method and repairing method for interlayer cracking of fiber reinforced thermosetting resin matrix composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111176420.1A CN113777135B (en) | 2021-10-09 | 2021-10-09 | Monitoring and repairing structure, monitoring method and repairing method for interlayer cracking of fiber reinforced thermosetting resin matrix composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113777135A true CN113777135A (en) | 2021-12-10 |
| CN113777135B CN113777135B (en) | 2023-06-06 |
Family
ID=78854937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111176420.1A Active CN113777135B (en) | 2021-10-09 | 2021-10-09 | Monitoring and repairing structure, monitoring method and repairing method for interlayer cracking of fiber reinforced thermosetting resin matrix composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113777135B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216033A (en) * | 2022-07-18 | 2022-10-21 | 吉林大学 | Bionic fiber reinforced composite material and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000238163A (en) * | 1999-02-17 | 2000-09-05 | Sekisui Chem Co Ltd | Damage restoring composite material and use thereof |
| CN101544064A (en) * | 2009-05-08 | 2009-09-30 | 南京航空航天大学 | Intelligent structure self-healing method and health monitoring system based on light repairing technology |
| CN110509576A (en) * | 2019-08-13 | 2019-11-29 | 北京航空航天大学 | A kind of evaluation and test of composite structure impact injury and it is automatically repaired system |
| CN111497278A (en) * | 2020-04-22 | 2020-08-07 | 华中科技大学 | Preparation method of carbon fiber composite material with designable characteristic structure and product |
| CN112673055A (en) * | 2018-09-06 | 2021-04-16 | 洛桑联邦理工学院 | Composite material |
| CN112700908A (en) * | 2020-12-16 | 2021-04-23 | 中国科学院苏州纳米技术与纳米仿生研究所 | Intelligent composite material and preparation method and application thereof |
| CN112834575A (en) * | 2021-01-04 | 2021-05-25 | 华东理工大学 | Fiber-reinforced pressure container and damage monitoring method based on same |
| CN113049640A (en) * | 2021-03-03 | 2021-06-29 | 吉林大学 | Bionic fiber composite material with real-time damage monitoring function and preparation method thereof |
-
2021
- 2021-10-09 CN CN202111176420.1A patent/CN113777135B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000238163A (en) * | 1999-02-17 | 2000-09-05 | Sekisui Chem Co Ltd | Damage restoring composite material and use thereof |
| CN101544064A (en) * | 2009-05-08 | 2009-09-30 | 南京航空航天大学 | Intelligent structure self-healing method and health monitoring system based on light repairing technology |
| CN112673055A (en) * | 2018-09-06 | 2021-04-16 | 洛桑联邦理工学院 | Composite material |
| CN110509576A (en) * | 2019-08-13 | 2019-11-29 | 北京航空航天大学 | A kind of evaluation and test of composite structure impact injury and it is automatically repaired system |
| CN111497278A (en) * | 2020-04-22 | 2020-08-07 | 华中科技大学 | Preparation method of carbon fiber composite material with designable characteristic structure and product |
| CN112700908A (en) * | 2020-12-16 | 2021-04-23 | 中国科学院苏州纳米技术与纳米仿生研究所 | Intelligent composite material and preparation method and application thereof |
| CN112834575A (en) * | 2021-01-04 | 2021-05-25 | 华东理工大学 | Fiber-reinforced pressure container and damage monitoring method based on same |
| CN113049640A (en) * | 2021-03-03 | 2021-06-29 | 吉林大学 | Bionic fiber composite material with real-time damage monitoring function and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115216033A (en) * | 2022-07-18 | 2022-10-21 | 吉林大学 | Bionic fiber reinforced composite material and preparation method thereof |
| CN115216033B (en) * | 2022-07-18 | 2023-11-03 | 吉林大学 | Bionic fiber reinforced composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113777135B (en) | 2023-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11926093B2 (en) | Methods and apparatus for embedding heating circuits into articles made by additive manufacturing and articles made therefrom | |
| JP6700012B2 (en) | Printing patterns on composite laminates | |
| EP3102404B1 (en) | Method for manufacture of nanostructure reinforced composites | |
| Liu et al. | Mechanical performance of carbon fiber/epoxy composites cured by self-resistance electric heating method | |
| KR102332550B1 (en) | Fabrication of composite laminates using temporarily stitched preforms | |
| NO326232B1 (en) | Composite comprising structural and non-structural fibers | |
| CN108995316B (en) | Graphene paper composite material | |
| EP3626763B1 (en) | Soluble nanoparticles for composite performance enhancement | |
| CN107662303A (en) | A kind of carbon fiber enhancement resin base composite material integrates electrical loss curing | |
| KR20170063680A (en) | Process for producing fiber-reinforced plastic | |
| CN113777135A (en) | Monitoring and repairing structure, monitoring method and repairing method for interlayer cracking of fiber-reinforced thermosetting resin-based composite material | |
| US20190039264A1 (en) | Method for manufacturing a preform, a preform, and a composite article | |
| Katagiri et al. | CFRP manufacturing method by using electro-activated deposition and the effect of reinforcement with carbon fiber circumferentially around the hole | |
| OuYang et al. | High crack self-healing efficiency and enhanced free-edge delamination resistance of carbon fibrous composites with hierarchical interleaves | |
| US20030173715A1 (en) | Resistive-heated composite structural members and methods and apparatus for making the same | |
| CN113085229B (en) | Device and method for repairing layered damage of carbon fiber reinforced thermosetting resin-based composite material | |
| JP6655328B2 (en) | Nanoparticles to improve dimensional stability of resin | |
| GB2381493A (en) | Composite materials | |
| US6036464A (en) | Heat blanket buffer assembly | |
| CN110997290A (en) | Fiber fabric reinforced composite material and preparation method thereof | |
| JP2021020453A (en) | Corner filler for wet composite lay-up | |
| Panin et al. | Experimental and Numerical Studies on the Tensile Strength of Lap Joints of PEEK Plates and CF Fabric Prepregs Formed by Ultrasonic Welding | |
| Totla et al. | Resistance welding analysis of thermoplastic composite structures in aeronautical applications | |
| WO2014148963A1 (en) | A method for joining a first composite structure to at least a second structure and a mechanical and/or electrical joint | |
| CN113733609B (en) | Structure and method for in-situ monitoring and repairing damage of fiber reinforced thermosetting resin-based composite material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |