Using digital image correlation in triaxial stress sensor

• Main Authors: Dong,Zuo-Chun, 董作群
• Other Authors: Huang, Chen-Shen
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/11275044670372839084

碩士 === 國立交通大學 === 機械工程系所 === 104 === The present study aims to using DIC(Digital Image Correlation) in the development of a triaxial stress sensor system.The sensor can measure normal and shear stress at the same time. Toward this end, a standard operating procedure for manufacturing a novel triaxial stress sensor has been established. The sensor system includes a flexible and transparent material(PDMS), a series of image sensors as well as a data acquisition and processing system. Therefore, when the material deforms with external load, using image sensors and DIC algorithm to calculate the displacement of the material from the images. The stress-displacement relationship of the PDMS material, obtained by means of calibration experiments and numerical simulations, can then be incorporated to recover the normal and shear stress.In this thesis, according to normal and shear and both force, present recover result with overall system. the results will compare with numerical simulations.