火炸药学报2011，Vol.34Issue(1)：42-44,58,4.
PBX巴西试验与直接拉伸试验的比较
Comparison on the Brazilian Test and Tension Test of the PBX
摘要
Abstract
In order to investigate the effectiveness of indirect tensile strength of PBX obtained by Brazilian test,Brazilian test and direct tension were performed. The results show that indirect tensile strength and tensile strength are 3.60 MPa and 5.46 MPa by Brazilian test and tension test to PBX samples respectively, and the former was about 65 ％ of the latter. The analysis on the face cracks of PBX samples after Brazilian testing showed that initial cracking was out of the center of the PBX samples, maybe the off-center cracking or the stress concentration causing to crack, and that didn't satisfy the condition of the center cracking for Brazilian test. Considering the Brazilian test can't be used to characterize more exactly tensile strength of the PBX.关键词
材料科学/PBX/巴西试验/直接拉伸试验/拉伸强度Key words
material science/ PBX/ Brazilian test/ tension test/ tensile strength分类
军事科技引用本文复制引用
庞海燕,李明,温茂萍,蓝林刚,敬仕明..PBX巴西试验与直接拉伸试验的比较[J].火炸药学报,2011,34(1):42-44,58,4.基金项目
国家自然科学基金资助(10832003) （10832003）
