Low-cost two-dimensional digital image correlation system

被引：0

作者：

VanDyk, Randall ^{[1
]}

Simha, C. Hari Manoj ^{[1
]}

机构：

[1] Univ Guelph, Sch Engn, 50 Stone Rd East, Guelph, ON N1G2W1, Canada

来源：

TRANSACTIONS OF THE CANADIAN SOCIETY FOR MECHANICAL ENGINEERING | 2024年 / 48卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

digital image correlation; strain gauge; low cost; displacement fields; tensile test;

D O I：

10.1139/tcsme-2023-0216

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A low-cost digital image correlation (DIC) system for measuring two-dimensional displacement fields is described. Using an off-the-shelf camera, lens, and open-source DIC analysis software, displacement fields in aluminum and steel dog-bone tensile specimens were measured. Correction for out-of-plane motion is used to obtain strains from the displacement fields. Proposed DIC strain measurement system is validated using conventional thin-film strain gauges for strains below 1%. Average strain measurements from the DIC system were found to be within 1% of the measurement obtained using strain gauges. For strains between 1% and 10%, strain histories from the DIC systems displayed excellent correlation with strain measurements obtained using an extensometer.

引用

页码：514 / 522

页数：9

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