IMPROVING STABILITY IN THE DOUBLE-CANTILEVER-BEAM FRACTURE TEST

被引:1
|
作者
WETHERHOLD, RC
FORAND, JA
机构
[1] Department of Mechanical and Aerospace Engineering, State University of New York at Buffalo, Buffalo
关键词
D O I
10.1016/0921-5093(91)90816-6
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The double-cantilever-beam test is typical of traditional fracture tests used to determine critical stress intensity factor or critical energy release rates. In its basic fixed-grip configuration, it should allow a number of data points to be taken during a slow controlled crack propagation. Machine compliance and initial machined-notch bluntness may, however, cause the crack to propagate catastrophically in brittle materials. This letter deals with the use of externally applied closure forces to improve the crack growth stability in brittle materials.
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页码:L17 / L20
页数:4
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