CN113029824A - Method for fixing sample by using electromagnet on Hopkinson pull rod - Google Patents
Method for fixing sample by using electromagnet on Hopkinson pull rod Download PDFInfo
- Publication number
- CN113029824A CN113029824A CN202110260939.1A CN202110260939A CN113029824A CN 113029824 A CN113029824 A CN 113029824A CN 202110260939 A CN202110260939 A CN 202110260939A CN 113029824 A CN113029824 A CN 113029824A
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- CN
- China
- Prior art keywords
- pull rod
- sample
- hopkinson pull
- electromagnet
- present
- 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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0298—Manufacturing or preparing specimens
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a method for fixing a sample by using an electromagnet for a Hopkinson pull rod, and relates to the technical field of Hopkinson pull rod experiments.
Description
Technical Field
The invention relates to the technical field of Hopkinson pull rod experiments, in particular to a method for fixing a sample by using an electromagnet for a Hopkinson pull rod.
Background
The existing mode for fixing the sample is that 502 glue is used for bonding and has poor bonding effect, the bonding parallelism cannot be ensured, and the bonding can also influence the propagation of stress waves.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for fixing a sample by using an electromagnet for a Hopkinson pull rod, so as to reduce the influence of glue adhesion on experimental accuracy.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a method for fixing a sample by using an electromagnet for a Hopkinson pull rod.
Compared with the prior art, the invention has the following technical effects:
according to the method for fixing the sample by the aid of the electromagnets, the Hopkinson pull rods are respectively placed at two ends of the sample, the coil is arranged at one end, close to the sample, of each Hopkinson pull rod, the coil is electrified to generate opposite magnetism to fix the sample between the two Hopkinson pull rods, no other material is arranged between the sample and the Hopkinson pull rods to influence the wave velocity, and accuracy of an experiment is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a method for fixing a sample by using an electromagnet in a hopkinson pull rod according to the present invention.
Description of reference numerals: 1. a Hopkinson pull rod; 2. a coil; 3. and (4) sampling.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, in the method for fixing a sample by using an electromagnet for a hopkinson pull rod provided in the present embodiment, a hopkinson pull rod 1 is respectively placed at two ends of a sample 3, a coil 2 is arranged at one end of the hopkinson pull rod 3 close to the sample 1, opposite magnetism is generated by electrifying the coil 2 to fix the sample 3 between the two hopkinson pull rods 1, no other material influences the wave velocity between the sample 3 and the hopkinson pull rod 1, and the accuracy of the experiment is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (1)
1. The method for fixing the sample by using the electromagnet for the Hopkinson pull rod is characterized in that the Hopkinson pull rods are respectively placed at two ends of the sample, a coil is arranged at one end, close to the sample, of each Hopkinson pull rod, and the coils are electrified to generate opposite magnetism to fix the sample between the two Hopkinson pull rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110260939.1A CN113029824A (en) | 2021-03-10 | 2021-03-10 | Method for fixing sample by using electromagnet on Hopkinson pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110260939.1A CN113029824A (en) | 2021-03-10 | 2021-03-10 | Method for fixing sample by using electromagnet on Hopkinson pull rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113029824A true CN113029824A (en) | 2021-06-25 |
Family
ID=76469200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110260939.1A Pending CN113029824A (en) | 2021-03-10 | 2021-03-10 | Method for fixing sample by using electromagnet on Hopkinson pull rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113029824A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344648A (en) * | 2018-02-07 | 2018-07-31 | 西北工业大学 | A kind of single-axis bidirectional load split hopkinson press bar and pull rod device and experimental method |
| CN208171747U (en) * | 2018-05-07 | 2018-11-30 | 北京市计算中心 | A kind of restraint device |
| CN109030255A (en) * | 2018-09-28 | 2018-12-18 | 广州大学 | A kind of calutron and control method inhibiting the rebound of multiple-pulse Hopkinson bar |
| CN111426555A (en) * | 2020-04-14 | 2020-07-17 | 西南交通大学 | Tensile fixture and experimental method for split Hopkinson pull rod thin sheet test piece |
| CN112286141A (en) * | 2020-10-28 | 2021-01-29 | 山东钢铁集团日照有限公司 | Closed-loop servo control electromagnet buckling-instability-preventing device |
-
2021
- 2021-03-10 CN CN202110260939.1A patent/CN113029824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344648A (en) * | 2018-02-07 | 2018-07-31 | 西北工业大学 | A kind of single-axis bidirectional load split hopkinson press bar and pull rod device and experimental method |
| CN208171747U (en) * | 2018-05-07 | 2018-11-30 | 北京市计算中心 | A kind of restraint device |
| CN109030255A (en) * | 2018-09-28 | 2018-12-18 | 广州大学 | A kind of calutron and control method inhibiting the rebound of multiple-pulse Hopkinson bar |
| CN111426555A (en) * | 2020-04-14 | 2020-07-17 | 西南交通大学 | Tensile fixture and experimental method for split Hopkinson pull rod thin sheet test piece |
| CN112286141A (en) * | 2020-10-28 | 2021-01-29 | 山东钢铁集团日照有限公司 | Closed-loop servo control electromagnet buckling-instability-preventing device |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210625 |
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| RJ01 | Rejection of invention patent application after publication |