CN103364270B - Integrated test fixture is reversed in the compression of a kind of advanced material hygrothermal environment cyclic tension - Google Patents
Integrated test fixture is reversed in the compression of a kind of advanced material hygrothermal environment cyclic tension Download PDFInfo
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- CN103364270B CN103364270B CN201310249992.7A CN201310249992A CN103364270B CN 103364270 B CN103364270 B CN 103364270B CN 201310249992 A CN201310249992 A CN 201310249992A CN 103364270 B CN103364270 B CN 103364270B
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- test fixture
- upper grip
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Abstract
The invention discloses the compression of a kind of advanced material hygrothermal environment cyclic tension and reverse integrated test fixture, form primarily of upper flange (2) and lower flange (12), upper grip body (4) and lower chuck body (10), two left-hand thread nuts (3 and 11), upper grip (5) and lower chuck body (9), upper pressing cap (6) and lower pressing caps (8); Test fixture is symmetrical arranged up and down.The invention provides that a kind of different size sample stretches, the integrated test fixture of compression and torsional cycles test, not only can realize that different size sample under hygrothermal environment stretches, compression and torsional cycles test, and have workable, the advantage that cost is low.
Description
Technical field
The invention belongs to experimental facilities, especially integrated test fixture manufacturing technology field is reversed in the compression of advanced material hygrothermal environment cyclic tension.
Background technology
The advanced material such as biomaterial, macromolecular material, shape-memory material obtains increasingly extensive application in each field of engineering in recent years, scientific research field to the theory of advanced material and experimental study also like a raging fire.Important scientific research value is not only had, to instructing engineer applied also important role to the research of the circular deformation behavior under its hygrothermal environment.In order to investigate the circular deformation behavior of material, usually structural timber being processed into given shape (as tabular, bar-shaped, thin-wall circular tube etc.), carrying out the cyclic deformation experiment under room temperature and hygrothermal environment.About the fatigue test technology of the single test technology of sheet material under ambient temperature and moisture and hygrothermal environment and bar samples is quite ripe, international, be domesticly also proposed a series of corresponding standard.Along with developing rapidly of the engineerings such as Aero-Space, hygrothermal environment becomes the influence factor must considered in structural timber safe design.Under hot and humid environment, hydraulically operated fixture can not use, and the mechanical type under conventional high temperature environment is threaded to advanced material (as macromolecular material etc.) existence processing and clamping problem, causes the moisture and hot ageing of advanced material to be tested and is difficult to launch.Fig. 1 is existing a kind of technical scheme, and the program is only suitable for the tensile and compression test (CN102346113A) of specific dimensions bar-shaped metal materials.For needing the compression test of moderate finite deformation and twisting test and can only being processed into board-like material situation owing to processing preparation problem, the program can not reach requirement.And program consumption of materials is too large, causes experimental cost too high.
Summary of the invention
In view of the above deficiency of prior art, the object of the invention is, obtain the compression of a kind of advanced material hygrothermal environment cyclic tension and reverse integrated test fixture, make it the above shortcoming overcoming prior art.
The object of the invention is by following means realize:
Integrated test fixture is reversed in the compression of a kind of advanced material hygrothermal environment cyclic tension, forms primarily of upper flange 2 and lower flange 12, upper grip body 4 and lower chuck body 10, two left-hand thread nut 3 and 11, upper grip 5 and lower chuck 9, upper pressing cap 6 and lower pressing caps 8; Test fixture is symmetrical arranged up and down, in the first half: upper flange 2 is connected by nut and MTS tensile axis 1; Upper flange 2 opens threaded hole, is equipped with externally threaded upper grip body 4 and upper flange 2 close fit; Being threaded of the fastening upper flange 2 of left-hand thread nut 3 and upper grip body 4; The position that upper pressing cap 6 is connected with upper grip 5 with upper grip body 4 is equipped with certain slope; Test fixture the latter half and described the first half symmetry.
The present invention compared with prior art, the invention provides the integrated test fixture that the stretching of a kind of different size sample, compression and torsional cycles are tested, under not only can realizing hygrothermal environment, different size sample stretches, compresses and torsional cycles test (tensile sample as bar-shaped in macromolecular material, macromolecular material Large compressive deformation sample, macromolecular material GB small size plate stretch sample, marmem tension-torsion properties of Thin-walled Tubular Specimen), material consumption can be saved, Control release cost, and have workable, the advantage that cost is low.
Accompanying drawing is described as follows:
Fig. 1 is existing structure schematic diagram.
Fig. 2 is fixture longitudinal sectional view of the present invention.
Fig. 3 is the structural drawing of fixture embodiment flange of the present invention, and wherein 3a is cut-open view, and 3b is vertical view.
Fig. 4 is the structural drawing of fixture embodiment collet body of the present invention, and wherein 4a is cut-open view, and 4b is vertical view.
Fig. 5 is the structural drawing of fixture embodiment chuck of the present invention, and wherein 5a is cut-open view, and 5b is vertical view.
Fig. 6 is the structural drawing of fixture embodiment secondary chuck of the present invention, and wherein 6a is cut-open view, and 6b is vertical view.
Fig. 7 is the structural drawing of fixture embodiment compressed chuck of the present invention, and wherein 7a is cut-open view, and 7b is vertical view.
Embodiment
Below in conjunction with accompanying drawing, structure of the present invention is described in further detail.
Fig. 2 is the overall cut-open view of fixture of the present invention.Fig. 3-5 is each parts cut-open view and the front elevation of fixture of the present invention.Fig. 6 is the three-dimensional wiring layout of patent of the present invention.
In Fig. 2,1 to go deep into the tensile axis in environmental cabinet for MTS testing machine; 2 is upper flange; 3 is left-hand thread nut; 4 is upper grip bodies; 5 is upper grip, and 6 is upper pressing cap; 7 is experimental sample; 8 is lower pressing cap; 9 is lower chuck; 10 is lower chuck body; 11 is left-hand thread nut; 12 is lower flange; 13 is environmental cabinet casing; 14 is flange threaded hole; 15 is the bolt hole that flange is connected with MTS testing machine; 16 is boss; 17 is slope; 18 is external thread on collet body; 19 is external thread under collet body; 20 is chuck ramp; 21 is chuck lower inclined plane.
Embodiment
As shown in Figure 2, by being arranged at by sample in environmental cabinet 13, the present invention can at the circular deformation behavior of test material under hygrothermal environment.This fixture is made up of two flanges (2 and 12), two collet bodies (4 and 10), two left-hand thread nuts (3 and 11), two chucks (5 and 9), two pressure caps (6 and 8) etc.Each several part connects as follows:
Upper flange 2 is by 8 nuts and MTS tensile axis 1 compact siro spinning technology.Upper flange 2 containing threaded hole, upper grip body containing external thread 19 with upper flange 2 threaded hole 14 close fit, and being threaded by the fastening upper flange 2 of left-hand thread nut 3 and upper grip body 4, reduces the impact of the tension and compression circulation experiment screw thread changing of the relative positions.All there is certain slope (17,20,21 etc.) at the position that upper pressing cap 6 and upper grip body 4 are connected with upper grip 5, and the position gradient of connection is 15 degree.Compressing close fit is connected and circumferential pressure to sample 7 by screw thread 18 between upper pressing cap and upper grip body.Carry out roughening process to the face 22 of upper grip 5 and sample contacts to skid to stop in sample loading procedure.The latter half is identical with the first half on the whole, is connected with MTS testing machine unlike different the stretching out outside environmental cabinet casing 13 of lower flange 12 and upper flange length by 4 nuts.
By replacing with chuck 5 and lower chuck 9, the cyclic tension compression twisting test of different size sample can be realized.In order to widen the applicable surface of this fixture, design machined secondary fixture Fig. 6 to meet macromolecule GB tabular small sample and the requirement of marmem microtubule stretching torsion test; Macromolecular material Large compressive deformation requirement of experiment is realized by the chuck of Fig. 7 structure.
Claims (3)
1. integrated test fixture is reversed in an advanced material hygrothermal environment cyclic tension compression, it is characterized in that, form primarily of upper flange (2) and lower flange (12), upper grip body (4) and lower chuck body (10), two left-hand thread nuts (3 and 11), upper grip (5) and lower chuck (9), upper pressing cap (6) and lower pressing caps (8); Test fixture is symmetrical arranged up and down, in the first half: upper flange (2) is connected by nut and MTS testing machine tensile axis (1); Upper flange (2) opens threaded hole, is equipped with externally threaded upper grip body (4) and upper flange (2) close fit; Being threaded of left-hand thread nut (3) fastening upper flange (2) and upper grip body (4); The position that upper pressing cap (6) is connected with upper grip (5) with upper grip body (4) is equipped with certain slope; Test fixture the latter half and described the first half symmetry.
2. according to claim 1 advanced material hygrothermal environment cyclic tension compression reverse integrated test fixture, it is characterized in that, the position gradient of described connection is 15 degree.
3. integrated test fixture is reversed in advanced material hygrothermal environment cyclic tension compression according to claim 1, it is characterized in that, described upper grip and lower chuck be roughened surface with the face of sample contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249992.7A CN103364270B (en) | 2013-06-21 | 2013-06-21 | Integrated test fixture is reversed in the compression of a kind of advanced material hygrothermal environment cyclic tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249992.7A CN103364270B (en) | 2013-06-21 | 2013-06-21 | Integrated test fixture is reversed in the compression of a kind of advanced material hygrothermal environment cyclic tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103364270A CN103364270A (en) | 2013-10-23 |
| CN103364270B true CN103364270B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310249992.7A Expired - Fee Related CN103364270B (en) | 2013-06-21 | 2013-06-21 | Integrated test fixture is reversed in the compression of a kind of advanced material hygrothermal environment cyclic tension |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926160B (en) * | 2014-04-18 | 2016-02-03 | 吉林大学 | Stretch-reverse combined load material Micro Mechanical Properties in-situ test instrument |
| CN106018099B (en) * | 2016-06-22 | 2019-07-12 | 国网河南省电力公司电力科学研究院 | A method of for detecting end part of composite insulator fitting crimp quality |
| CN107192612B (en) * | 2017-06-02 | 2019-08-13 | 东北大学 | A kind of tension-torsion fatigue test board |
| CN109883829B (en) * | 2019-03-01 | 2020-10-09 | 哈尔滨理工大学 | Mechanical property testing system for composite material |
| CN110441136B (en) * | 2019-09-25 | 2024-03-12 | 吉林大学 | Stretching-twisting composite clamp based on positive and negative thread structure |
| CN110940599A (en) * | 2019-12-20 | 2020-03-31 | 太原科技大学 | Thermal simulation torsion experimental device |
| JP2022027674A (en) * | 2020-08-01 | 2022-02-14 | 濱田 和明 | Tension-compression test fixture |
| CN113008664B (en) * | 2021-03-10 | 2022-01-18 | 中国水利水电科学研究院 | Testing device |
| CN113188881B (en) * | 2021-03-19 | 2024-05-14 | 西北工业大学 | Preparation method of impregnated yarn sample and compression test fixture thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201138318Y (en) * | 2007-10-22 | 2008-10-22 | 济南试金集团有限公司 | Multifunctional connecting structure of clamp for test machine |
| CN202362205U (en) * | 2011-10-31 | 2012-08-01 | 中国海洋石油总公司 | Joint for testing umbilical cables |
| CN203350115U (en) * | 2013-06-21 | 2013-12-18 | 西南交通大学 | Clamp for cyclic stretching, compression and torsion integrated test of advanced material under hygrothermal environment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547336B1 (en) * | 1970-08-22 | 1980-11-29 | ||
| JP2003065916A (en) * | 2001-08-29 | 2003-03-05 | Saginomiya Seisakusho Inc | Test piece-gripping apparatus |
| JP5366230B2 (en) * | 2010-04-26 | 2013-12-11 | 日本電気株式会社 | Fixing jig for fatigue test specimen and fatigue test equipment |
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2013
- 2013-06-21 CN CN201310249992.7A patent/CN103364270B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138318Y (en) * | 2007-10-22 | 2008-10-22 | 济南试金集团有限公司 | Multifunctional connecting structure of clamp for test machine |
| CN202362205U (en) * | 2011-10-31 | 2012-08-01 | 中国海洋石油总公司 | Joint for testing umbilical cables |
| CN203350115U (en) * | 2013-06-21 | 2013-12-18 | 西南交通大学 | Clamp for cyclic stretching, compression and torsion integrated test of advanced material under hygrothermal environment |
Also Published As
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| CN103364270A (en) | 2013-10-23 |
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Granted publication date: 20160106 Termination date: 20190621 |