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Proceedings Paper

Creep properties identification of PBX using digital image correlation
Author(s): Baoqiao Guo; Huimin Xie; Pengwan Chen; Qingming Zhang
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Paper Abstract

The creep behavior of the polymer bonded explosive (PBX) substitute material is investigated by using the digital image correlation (DIC) method. At first step the 3-points bending test is applied to achieve the tested PBX substitute material's elastic parameters, which are identified by the calculated heterogeneous strain fields and the so-called virtual fields method (VFM). In the second step, the creep property of PBX material is studied by the Brazilian disc compression test. The stress fields could then be reconstructed with the identified elastic parameters and the strain fields at the first step of loading. The time hardening coefficients which present the creep behavior could be extracted by the time-depending strain rate curves of the points on the surface.

Paper Details

Date Published: 14 April 2010
PDF: 9 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75222V (14 April 2010); doi: 10.1117/12.851587
Show Author Affiliations
Baoqiao Guo, Tsinghua Univ. (China)
Huimin Xie, Tsinghua Univ. (China)
Pengwan Chen, Beijing Institute of Technology (China)
Qingming Zhang, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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