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Overall-local combined sample deformation measurement device and method

A measurement device and measurement method technology, applied in the direction of measurement devices, instruments, scientific instruments, etc., can solve the problem of not fully reflecting the true properties of materials

Active Publication Date: 2017-09-01
SUZHOU H C SOIL & WATER SCI & TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this test method can study the local deformation characteristics of the material, this "local" is actually an artificially designated observation area, and the obtained mechanical properties may not fully reflect the real properties of the material

Method used

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  • Overall-local combined sample deformation measurement device and method
  • Overall-local combined sample deformation measurement device and method
  • Overall-local combined sample deformation measurement device and method

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Embodiment Construction

[0026] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.

[0027] A device for measuring the deformation of a sample combined with a whole-part, including a No. 1 position machine, a No. 2 position machine, a universal testing machine platform 1, legs 2, a specially treated sample 9, a sample fixture 10, and a testing machine loading The beam 11 and the centering detection board 12; the platform 1 of the universal testing machine is placed on the ground plane through four height-adjustable outriggers 2 .

[0028] The bottom of the No. 1 shock absorbing block 3 in the No. 1 position machine is stably and fixedly installed on one side of the platform 1 of the universal testing machine, and the linear slide pair 4 is fixed on the upper part of the No. 1 shock absorbing block 3 through inner hexagonal bolts; the miniature lifting test bench 5 is installed On the linear slide rail pair 4; the No. 1 centering las...

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Abstract

The invention belongs to the technical field of experimental mechanical measurement, and provides an overall-local combined sample deformation measurement device and an overall-local combined sample deformation measurement method. The sample deformation measurement device comprises a first position machine, a second position machine, a universal testing machine platform, supporting legs, a specially treated sample, a sample clamp, a testing machine loading beam and a centering detecting plate; the universal testing machine platform is placed on the ground plane through four height-adjustable supporting legs. On the basis of an optical measurement technology and computer picture processing, a method which can realize overall measurement and local measurement simultaneously is established by adopting a camera combination mode. A local measurement area is automatically positioned according to experimental conditions; the measurement scale reaches higher precision; the observed object of the overall measurement is the overall sample; a measurement result gives deformation field distribution of a sample surface. According to the overall-local combined sample deformation measurement device and the overall-local combined sample deformation measurement method, overall-local combination is realized, so that the measurement of overall deformation and local deformation can be realized simultaneously; the local area which is required to be measured can be positioned automatically, and moreover, the scale of the local measurement reaches a mesoscopic level.

Description

technical field [0001] The invention belongs to the technical field of experimental mechanics measurement, and relates to a device and method for measuring deformation of a sample combined with a whole and a part. Background technique [0002] Among the measurement methods of specimen deformation, optical measurement is currently the most popular. Optical measurement technology is divided into interference optical measurement and non-interference optical measurement. Interferometric optical measurement techniques such as holographic interference, speckle interference, moiré interference, etc.; non-interferential optical measurement techniques such as geometric moiré technology, and digital image measurement technology. The application of optical measurement technology in the study of material deformation characteristics has promoted the research process of people to explore the mechanical properties and behavior of materials. [0003] Applying optical measurement and compu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/06
CPCG01N3/068G01N2203/006G01N2203/0075G01N2203/04G01N2203/0647
Inventor 邵龙潭夏平心郭晓霞王鹏鹏
Owner SUZHOU H C SOIL & WATER SCI & TECH CO LTD
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