FULL-FIELD STRESS AND STRAIN MEASUREMENT IN (STRUCTURED) MEMBRANES

被引：0
|
作者：
Hoefnagels, Johan [1 ]
Neggers, Jan [1 ,2 ]
Hild, Francois [2 ]
Roux, Stephane
Geers, Marc [1 ]
机构：
[1] Eindhoven Univ Technol, Den Dolech 2, NL-5612 AZ Eindhoven, Netherlands
[2] LMT Cachan, F-94235 Cachan, France
来源：
ICEM15: 15TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS | 2012年
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Bulge testing is known for its ability to quantify the mechanical behavior of homogeneous thin membranes (Vlassak, 1992). In this method the measured quantities are related to the averaged stress and strain using bulge equations which only exist for a very limited set of membrane geometries and can be a source of systematic error (Neggers, 2012). A novel quasi-3D Digital Image Correlation (DIC) method is proposed, based on the Global DIC framework (Hild, 2011), to directly measure the full-field strain and stress without using any closed form approximation of the deformation kinematics. [GRAPHICS] .
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