AN IMPROVED STRAIN-GAUGE METHOD FOR MEASURING KID FOR A PROPAGATING CRACK

被引：11
|
作者：
SANFORD, RJ
DALLY, JW
BERGER, JR
机构：
[1] Department of Mechanical Engineering, University of Maryland
来源：
JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN | 1990年 / 25卷 / 03期
关键词：
D O I：
10.1243/03093247V253177
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
An improved strain gauge method for measuring the dynamic stress intensity factor, KID, of a running crack is described. By orienting the gauge relative to the crack propagation path the gauge response is optimized for the analysis. Higher order terms in the dynamic strain field representation are demonstrated to be important in the analysis. An application of the method is illustrated in the measurement of KID for a very hard alloy steel, 4340, with a crack propagating at 656 m/s. © 1990, Institution of Mechanical Engineers. All rights reserved.
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页码：177 / 183
页数：7
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