Optimum strain gage location for evaluating stress intensity factors in single and double ended cracked configurations

被引：25
|
作者：
Sarangi, H. [1 ]
Murthy, K. S. R. K. [1 ]
Chakraborty, D. [1 ]
机构：
[1] Indian Inst Technol Guwahati, Dept Mech Engn, Gauhati 781039, India
来源：
ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 16期
关键词：
Stress intensity factor; Strain gage; Finite element analysis; Three parameter; Crack; DYNAMIC FRACTURE; TOUGHNESS; COMPOSITE;
D O I：
10.1016/j.engfracmech.2010.08.003
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A general methodology has been proposed for calculation of optimum radial strain gage locations for measurement of the stress intensity factors using strain gage technique. The upper bound (r(max)) of strain gage locations for complex single ended and double ended cracked configurations has been determined using the proposed method. Further, dependency of the r(max) on the crack length to width ratio and on the state of stress is investigated. Numerical results obtained from the present investigation are observed to be in accordance with the theoretical predictions. Using the proposed approach the correctness of strain gage locations used by the earlier researchers is also verified. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3190 / 3203
页数：14
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