Grid pattern for in-plane strain measurements by digital image processing

被引：7
|
作者：
Barone, S [1 ]
Berghini, M [1 ]
Bertini, L [1 ]
机构：
[1] Univ Pisa, Dipartimento Ingn Meccan Nucl & Prod, I-56126 Pisa, Italy
来源：
JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN | 2001年 / 36卷 / 01期
关键词：
strain measurement; grid method; digital image processing;
D O I：
10.1243/0309324011512603
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents a non-contact and non-destructive method for full-field in-plane strain measurements. Digital image processing is employed for monitoring the deformations of grid lines marked on a planar surface of a component or a specimen. Full-field in-plane strain distributions are obtained by processing the geometrical characteristics of the grid with computer graphics algorithms. The strain field determined in the necking zone of a tensile specimen has demonstrated the benefit of the method.
引用
收藏
页码：51 / 59
页数：9
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