Test piece clamping device for large-diameter split Hopkinson pressure bar

A Hopkinson pressure rod, separated technology, applied in the field of specimen clamping device of large diameter separated Hopkinson pressure rod, can solve the problems of low positioning accuracy, insufficient support reliability of specimen clamping device, etc. , to achieve the effect of stable clamping

Active Publication Date: 2018-12-11
SOUTHWEST JIAOTONG UNIV
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a large-diameter split-type Hopkinson pressure rod tester t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Test piece clamping device for large-diameter split Hopkinson pressure bar
  • Test piece clamping device for large-diameter split Hopkinson pressure bar
  • Test piece clamping device for large-diameter split Hopkinson pressure bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing:

[0027] Such as figure 1 As shown in , it is a schematic structural diagram of the specimen clamping device of the large-diameter split Hopkinson compression bar.

[0028] The specimen clamping device of the large-diameter separated Hopkinson compression bar of the present invention includes a fixed end 1 and a sliding end 2, the fixed end 1 includes a fixed sleeve 11, and a fixed collar 13 is sleeved on the fixed sleeve 11. A number of fixing holes 131 are evenly distributed on the collar 13; the fixing sleeve 11 is composed of two semicircular fixing sleeve plates 111 spliced ​​together.

[0029] The sliding end 2 includes a sliding sleeve 21 , and the sliding sleeve 21 is formed by splicing two semicircular sliding sleeve plates 211 . Both ends of the fixed sleeve 11 and the sliding sleeve 21 are respectively sleeved with snap rings 12, and the snap rings 12 are formed ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a test piece clamping device for a large-diameter split Hopkinson pressure bar. The test piece clamping device comprises a fixing end and a sliding end, wherein the fixing endcomprises a fixing sleeve; the fixing sleeve is sleeved with a fixing ferrule; the fixing ferrule is provided with a plurality of fixing holes; the sliding end comprises a sliding sleeve; the slidingsleeve is sleeved with a sliding ferrule through a plurality of sliding chutes which are formed uniformly; slide blocks which are matched with the sliding chutes are fixedly arranged on the inner wallof the sliding ferrule; the sliding ferrule is provided with positioning holes in a penetrating way at positions corresponding to the slide blocks; positioning parts are arranged in the positioning holes; the sliding ferrule is provided with a plurality of connection holes; the connection holes and the fixing holes are connected with the two ends of elastic elements respectively. By adopting thetest piece clamping device, the problems of insufficient support reliability and low positioning accuracy in a test piece clamping device in the prior art can be solved. The test piece clamping devicehas the advantages of high reliability, low randomness, high universality, easiness in disassembly and assembly, wider pre-clamping force adjusting range and high applicability, and can be flexibly adjusted and assembled according to the size and strength of a test piece.

Description

technical field [0001] The invention relates to a test piece clamping device, in particular to a test piece clamping device for a large-diameter separated Hopkinson compression bar. Background technique [0002] The separate Hopkinson pressure bar device is currently the main test method for testing the dynamic stress-strain response relationship of various engineering materials in the strain rate range from 100 / s to 10000 / s. It can be used in national defense, aviation, aerospace, automobiles, high-speed rail, In the fields of ships, weapons, etc., the test and characterization of the dynamic mechanical properties of materials for structural explosion resistance, impact resistance, collision and lightweight design and analysis requirements. [0003] When testing heterogeneous materials such as concrete, rock, foam, etc., in order to contain enough microstructures, the size of the specimen must be large enough, so a separate Hopkinson compression bar device with a large diam...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N3/04
Inventor 敬霖刘凯
Owner SOUTHWEST JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap