发明名称 |
STRUCTURAL FAILURE DETECTION METHOD |
摘要 |
<p>ICR 5995 STRUCTURAL FAILURE DETECTION METHOD Crack initiation in metallic structural members subject to cyclic loading is predicted by sensing metallurgical changes taking place as a result of the cyclic loading. Fatigue loading produces a cycle comprising a condition described as fatigue relaxation followed by fatigue intensification. By monitoring this cycle, measured strain for a known applied load will increase or decrease. By monitoring the change in strain load, crack initiation can be predicted as fatigue relaxation becomes fatigue intensification. In a preferred embodiment, the strain gauge is mounted beneath a patch excluding ambient atmosphere during monitoring of the structural members.</p> |
申请公布号 |
CA1123227(A) |
申请公布日期 |
1982.05.11 |
申请号 |
CA19790336354 |
申请日期 |
1979.09.26 |
申请人 |
CONOCO INC. |
发明人 |
OERTLE, DONALD H.;PETERSON, MARVIN L. |
分类号 |
G01N3/32;G01M5/00;G01M99/00;G01N3/00;(IPC1-7):01N3/32 |
主分类号 |
G01N3/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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