• CN：11-2187/TH
• ISSN：0577-6686

›› 2007, Vol. 43 ›› Issue (12): 190-193.

• 论文 •

### 材料局部力学性能测试方法

1. 兰州理工大学有色金属国家重点实验室;兰州理工大学理学院
• 发布日期:2007-12-15

### METHOD IN TESTING OF MECHANICS PERFORMANCE OF MATERIALS LOCAL MECHANICAL BEHAVIOR

QIAO Jisen;ZHOU Qinglin;WANG Zhicheng;ZHU Liang;CHEN Jianhong;ZHAO Shaojun

1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology Institute of Science, Lanzhou University of Technology
• Published:2007-12-15

Abstract: Local mechanical behavior of materials was analyzed by means of punch-shearing test combined with a revised finite element simulation algorithm. For the numerical model, a special revised iterative process was put forward to work out the strain-stress curves for an unknown material by matching the simulated reaction force curves with those of test results. Therefore, an indirect method for material characteriza- tion was presented based on the punch-shearing test. In addition, the process accuracy was validated by using aluminium alloy 5052H34 and 6063T5 for automobile and red copper as test materials. The results show that maximum error between indirect and direct way is less than 5%, which can be accepted on the whole. This indirect material characterization method can be used for local or micro-zone material modeling, which will be a useful tool for material characterization of inhomo- geneous welded joints.