CN1262436A - Fixture for dynamic stretching test of fibre reinforced compound material - Google Patents
Fixture for dynamic stretching test of fibre reinforced compound material Download PDFInfo
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- CN1262436A CN1262436A CN 99100381 CN99100381A CN1262436A CN 1262436 A CN1262436 A CN 1262436A CN 99100381 CN99100381 CN 99100381 CN 99100381 A CN99100381 A CN 99100381A CN 1262436 A CN1262436 A CN 1262436A
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- conical surface
- fixture block
- waveguide rod
- chuck
- fibre reinforced
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Abstract
A fixture for the static and dynamic stretching test of fibre reinforced composite material is composed of screw connecting tube, waveguide rod, conic clamper and its sleeve. Said waveguide rod and conic clamper sleeve are installed to both ends of screw connecting tube. The upper and lower conic clamping blocks are in the square through hole of conic clamper sleeve. The oblique (10-30deg.) teeth are made on the inner surface of conic clamping block. Its advantages are no influence to input and output of waves, and high reliability.
Description
The present invention is the anchor clamps of dynamic stretching test of fibre reinforced compound material, belongs to the material mechanical performance field tests.
Fibre reinforced composites are because of its strong anisotropy, and it is very difficult that the jig Design of stretching experiment becomes, and the dynamic tensile experiment under the high rate of strain is all the more so, and this is a current international difficult problem.Since the eighties, there has been the scholar to explore the static stretching experiment that carries out compound substance with glued method abroad, adopts the dumb-bell shape test specimen, but test result and unreliable.For the dynamic tensile experiment of compound substance, then do not see relevant anchor clamps report.
Advanced composite material is a kind of novel material, it is used more and more widely, its tensile property (comprising static state and dynamic property) is the important performance indexes of this material, therefore, tensile property how to test this material reliably becomes more and more important, the purpose of the invention is exactly to provide reliable piece fixture for dynamic (comprising static state naturally) tensile property test of fibre-reinforced compound substance, thereby obtains the tensile property of this material.
Above-mentioned purpose of the present invention is realized by following technical scheme: the anchor clamps of this dynamic stretching test of fibre reinforced compound material, comprise screw nipple, waveguide rod, conical surface chuck, conical surface fixture block, an end is equipped with waveguide rod in the screw nipple, the other end is equipped with conical surface chuck, be provided with the gap between waveguide rod and conical surface chuck are axial, cone-shaped through hole in the side's of establishing in the conical surface chuck, smooth two conical surface fixture blocks of correspondence up and down that are combined with in the through hole, the conical surface tapering α of fixture block is 5 °-15 °, the inner plane of every conical surface fixture block is provided with parallel helical teeth, the gradient β of tooth is 10 °-30 °, up and down folder test specimen in the fixture block helical teeth.
Advantage of the present invention:
(1) under the effect of chuck and conical surface fixture block, test specimen can produce self-locking, thereby avoids occurring that the test specimen pinching end skids or the end breakoff phenomenon.
(2) package unit does not influence the input and the output of ripple.
(3) this device both can be used for the dynamic tensile experiment of compound substance, also can be used for its static stretching experiment.
Concrete structure of the present invention is provided by Fig. 1-7.
Fig. 1 is an one-piece construction synoptic diagram of the present invention;
Fig. 2 is a conical surface chuck front view of the present invention;
Fig. 3 is a conical surface jacket side view of the present invention;
Fig. 4 is a conical surface fixture block front view of the present invention;
Fig. 5 is a conical surface fixture block vertical view of the present invention;
Fig. 6 is dynamic stress strain curve figure of the present invention;
Fig. 7 is a rate of strain time plot of the present invention.
Primary structure is among the figure: screw nipple 1, waveguide rod 2, conical surface chuck 3, conical surface fixture block 4, through hole 5, helical teeth 6, test specimen 7.
Embodiment:
The clamp structure of dynamic stretching test of fibre reinforced compound material as shown in Figure 1.Comprise screw nipple 1, waveguide rod 2, conical surface chuck 3, conical surface fixture block 4, an end is equipped with waveguide rod in the screw nipple, the other end is equipped with conical surface chuck, be provided with the gap between waveguide rod and conical surface chuck are axial, smooth two conical surface fixture blocks of correspondence up and down that are combined with in the side's of the establishing conical through-hole 5 in the conical surface chuck, through hole, the conical surface tapering α of fixture block is 5 °-15 °, the inner plane of every conical surface fixture block is provided with parallel helical teeth 6, and the gradient β of tooth is 10 °-30 °, up and down folder test specimen 7 in the fixture block helical teeth.Waveguide rod is the long 180mm of input and output bar, and diameter 20mm, material are aluminium.Add the external thread of section chief for M20 * 1.5mm of 25mm at the two ends of input and output bar.The screw nipple sharp processing that connects waveguide rod and chuck becomes cylindrical.Two ends have the internal thread of long 30mm, M20 * 1.5mm and long 20mm, M22 * 1.5m respectively, are used for connecting waveguide rod and chuck respectively.Here the material of test specimen is that the unidirectional carbon fiber dimension strengthens polymer matrix composites, is shaped as dumb-bell shape.During experiment, test specimen is placed in the anchor clamps that Design and Machining is good, the two ends of anchor clamps link to each other with the input and output bar of HOPKINSON bar, after register system is ready, can carry out dynamic experiment.
Typical dynamic stress strain curve and rate of strain time curve are seen Fig. 6 and Fig. 7 respectively.The results are shown in Table 1 for stretching experiment.
Table 1: dynamic tensile experimental result
Application example shows that these anchor clamps are fully reliably.
| Sequence number | Resistance to | Rate of strain/* 10 3S -1 | Failure position |
| ????1 | ????149 | ????1.50 | Active section |
| ????2 | ????260 | ????1.24 | Active section |
| ????3 | ????148 | ????1.55 | Active section |
Claims (1)
1. the anchor clamps of a dynamic stretching test of fibre reinforced compound material is characterized in that: comprise screw nipple, waveguide rod, conical surface chuck, conical surface fixture block; An end is equipped with waveguide rod in the screw nipple, the other end is equipped with conical surface chuck, be provided with the gap between waveguide rod and conical surface chuck are axial, the side's of establishing conical through-hole in the conical surface chuck, smooth two conical surface fixture blocks of correspondence up and down that are combined with in the through hole, the conical surface tapering α of fixture block is 5 °-15 °, the inner plane of every conical surface fixture block is provided with parallel helical teeth, the gradient β of tooth is 10 °-30 °, up and down folder test specimen in the fixture block helical teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99100381 CN1088517C (en) | 1999-01-27 | 1999-01-27 | Fixture for dynamic stretching test of fibre reinforced compound material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99100381 CN1088517C (en) | 1999-01-27 | 1999-01-27 | Fixture for dynamic stretching test of fibre reinforced compound material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1262436A true CN1262436A (en) | 2000-08-09 |
| CN1088517C CN1088517C (en) | 2002-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99100381 Expired - Fee Related CN1088517C (en) | 1999-01-27 | 1999-01-27 | Fixture for dynamic stretching test of fibre reinforced compound material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088517C (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251455B (en) * | 2008-03-21 | 2010-08-04 | 厦门大学 | Testing machine cellfiber clamper and method for measuring tensile strength |
| CN1766644B (en) * | 2005-11-08 | 2010-10-13 | 广州大学 | Experimental measurement method for dynamic tension coefficient of metal foil |
| CN102156067A (en) * | 2011-03-01 | 2011-08-17 | 中国石油集团工程设计有限责任公司 | Clamping device used in tensile test |
| CN102323145A (en) * | 2011-08-09 | 2012-01-18 | 江苏省产品质量监督检验研究院 | Hardware fitting for detecting mechanical property of bar material and using method thereof |
| CN102841011A (en) * | 2011-06-20 | 2012-12-26 | 中国科学院理化技术研究所 | Test fixture used for testing tensile mechanical properties of fibre reinforced composites at low temperature |
| CN103234817A (en) * | 2013-04-23 | 2013-08-07 | 中复碳芯电缆科技有限公司 | Detachable and reusable clamping apparatus for tensile test of fiber-reinforced resin based composite mandril |
| CN103528884A (en) * | 2013-09-10 | 2014-01-22 | 中国科学院理化技术研究所 | Test sample clamping device for low-temperature tensile property test |
| CN103884587A (en) * | 2013-12-04 | 2014-06-25 | 河南省煤炭科学研究院有限公司 | Tensile clamp of belt vulcanized joint and tensile tester of horizontal belt vulcanized joint |
| CN104020043A (en) * | 2014-06-20 | 2014-09-03 | 中国科学院理化技术研究所 | Tool clamp for testing low-temperature mechanical tensile properties of fiber reinforced composite material |
| CN104406781A (en) * | 2014-11-26 | 2015-03-11 | 广西华银铝业有限公司 | On-line safety valve checking method and device |
| CN105300792A (en) * | 2015-11-18 | 2016-02-03 | 太原理工大学 | Clamping device of Hopkinson pull bar test-piece and experimental method |
| CN105716941A (en) * | 2014-12-03 | 2016-06-29 | 上海金艺检测技术有限公司 | Special jig for triangular pin tensile test |
| CN106194928A (en) * | 2016-08-11 | 2016-12-07 | 宁波健信核磁技术有限公司 | A kind of bindiny mechanism |
| CN107941576A (en) * | 2017-11-09 | 2018-04-20 | 核工业第八研究所 | Silicon carbide ceramics cladding tubes tensile sample clamps the preparation facilities of termination |
| CN108827763A (en) * | 2018-06-22 | 2018-11-16 | 中国原子能科学研究院 | A kind of tubulose sample fixture |
| CN108844814A (en) * | 2018-08-22 | 2018-11-20 | 宁波大学 | A kind of braid material Hopkinson tension test clamp method |
| CN109142065A (en) * | 2018-07-23 | 2019-01-04 | 江苏大学 | A kind of high pressure hydrogen environment mechanical testing equipment and its test method |
| CN105388062B (en) * | 2015-11-26 | 2019-03-01 | 中国航空工业集团公司北京航空材料研究院 | A kind of specimen holder of pull test tubing or bar |
| CN110296883A (en) * | 2018-03-22 | 2019-10-01 | 株式会社岛津制作所 | Clip tooth and fixture |
| CN114034556A (en) * | 2021-11-04 | 2022-02-11 | 江苏隆达超合金股份有限公司 | Room-temperature tensile test method for small-caliber thin-wall coil pipe |
-
1999
- 1999-01-27 CN CN 99100381 patent/CN1088517C/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766644B (en) * | 2005-11-08 | 2010-10-13 | 广州大学 | Experimental measurement method for dynamic tension coefficient of metal foil |
| CN101251455B (en) * | 2008-03-21 | 2010-08-04 | 厦门大学 | Testing machine cellfiber clamper and method for measuring tensile strength |
| CN102156067A (en) * | 2011-03-01 | 2011-08-17 | 中国石油集团工程设计有限责任公司 | Clamping device used in tensile test |
| CN102841011A (en) * | 2011-06-20 | 2012-12-26 | 中国科学院理化技术研究所 | Test fixture used for testing tensile mechanical properties of fibre reinforced composites at low temperature |
| CN102323145A (en) * | 2011-08-09 | 2012-01-18 | 江苏省产品质量监督检验研究院 | Hardware fitting for detecting mechanical property of bar material and using method thereof |
| CN102323145B (en) * | 2011-08-09 | 2013-01-23 | 江苏省产品质量监督检验研究院 | Hardware fitting for detecting mechanical property of bar material and using method thereof |
| CN103234817A (en) * | 2013-04-23 | 2013-08-07 | 中复碳芯电缆科技有限公司 | Detachable and reusable clamping apparatus for tensile test of fiber-reinforced resin based composite mandril |
| CN103528884A (en) * | 2013-09-10 | 2014-01-22 | 中国科学院理化技术研究所 | Test sample clamping device for low-temperature tensile property test |
| CN103884587A (en) * | 2013-12-04 | 2014-06-25 | 河南省煤炭科学研究院有限公司 | Tensile clamp of belt vulcanized joint and tensile tester of horizontal belt vulcanized joint |
| CN104020043A (en) * | 2014-06-20 | 2014-09-03 | 中国科学院理化技术研究所 | Tool clamp for testing low-temperature mechanical tensile properties of fiber reinforced composite material |
| CN104406781A (en) * | 2014-11-26 | 2015-03-11 | 广西华银铝业有限公司 | On-line safety valve checking method and device |
| CN105716941A (en) * | 2014-12-03 | 2016-06-29 | 上海金艺检测技术有限公司 | Special jig for triangular pin tensile test |
| CN105300792A (en) * | 2015-11-18 | 2016-02-03 | 太原理工大学 | Clamping device of Hopkinson pull bar test-piece and experimental method |
| CN105300792B (en) * | 2015-11-18 | 2020-10-23 | 太原理工大学 | Clamping device and experimental method for Hopkinson pull rod test piece |
| CN105388062B (en) * | 2015-11-26 | 2019-03-01 | 中国航空工业集团公司北京航空材料研究院 | A kind of specimen holder of pull test tubing or bar |
| CN106194928A (en) * | 2016-08-11 | 2016-12-07 | 宁波健信核磁技术有限公司 | A kind of bindiny mechanism |
| CN107941576A (en) * | 2017-11-09 | 2018-04-20 | 核工业第八研究所 | Silicon carbide ceramics cladding tubes tensile sample clamps the preparation facilities of termination |
| CN110296883A (en) * | 2018-03-22 | 2019-10-01 | 株式会社岛津制作所 | Clip tooth and fixture |
| CN108827763A (en) * | 2018-06-22 | 2018-11-16 | 中国原子能科学研究院 | A kind of tubulose sample fixture |
| CN109142065A (en) * | 2018-07-23 | 2019-01-04 | 江苏大学 | A kind of high pressure hydrogen environment mechanical testing equipment and its test method |
| CN109142065B (en) * | 2018-07-23 | 2020-11-03 | 江苏大学 | High-pressure hydrogen environment mechanical test device and test method thereof |
| CN108844814A (en) * | 2018-08-22 | 2018-11-20 | 宁波大学 | A kind of braid material Hopkinson tension test clamp method |
| CN114034556A (en) * | 2021-11-04 | 2022-02-11 | 江苏隆达超合金股份有限公司 | Room-temperature tensile test method for small-caliber thin-wall coil pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1088517C (en) | 2002-07-31 |
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