期刊
OPTICS AND LASERS IN ENGINEERING
卷 49, 期 3, 页码 366-370出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2010.11.001
关键词
Heterogeneous deformation field; Digital image correlation; Polymer bonded explosive simulant; Micromechanical behavior
类别
资金
- National Natural Science Foundation of China [10832003]
- NSAF [11076032]
- National Basic Research Program of China [613830202]
- Program for New Century Excellent Talents [NCET-06-0159]
The micro-scale mechanical behavior of a polymer-bonded explosive (PBX) simulant was experimentally studied using a scanning electron microscope (SEM) imaging system and digital image correlation (DIC) method. The semi-circular bend (SCB) test was chosen for the study. During the testing, a series of SEM images of the specimen was acquired in situ. The natural micro-structural features of the specimen were used as random speckle pattern for DIC analysis. The displacement and strain fields at the area of interest were obtained by DIC. The deformation and damage of PBX were analyzed. Heterogeneous strain fields demonstrated the damage evolution underneath the specimen surface and predicted possible micro-crack growth. Based on the contour plots of the correlation coefficient, the formation and extension of microscopic cracks were quantitatively analyzed. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据