Quasi-static and impact tests on pre-cracked tubular beams

被引：0
|
作者：
Chen, FL
Yu, TX
Lai, HC
Poon, KY
机构：
[1] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
来源：
ADVANCES IN ENGINEERING PLASTICITY AND ITS APPLICATIONS, PTS 1 AND 2 | 2004年 / 274-276卷
关键词：
pre-crack; tubular cantilever; fully plastic collapse; crack propagation;
D O I：
10.4028/www.scientific.net/KEM.274-276.841
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper examines how pre-cracks existed on tubular cantilever beams alter their mechanical behaviour. From both quasi-static and impact tests with over 70 specimens, it has been revealed that pre-cracks make the dominant failure pattern of tubular beams switch from fully plastic collapse to crack propagation, thereby dramatically reduce their overall loading-carrying capacity. The inclination of the pre-crack is found not to affect the direction of crack opening.
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页码：841 / 846
页数：6
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