Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2001.11a
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- Pages.80-86
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- 2001
Crack Opening Displacement Analysis of Complex Cracked Pipes based on Enhanced Reference Stress Method
개선된 참조응력법을 이용한 복합균열이 존재하는 배관의 균열개구변위 계산
- Published : 2001.11.01
Abstract
An engineering estimation equation for the crack opening displacement (COD) is proposed for a complex cracked pipe, based on the reference stress approach. To define the reference stress, a simple plastic limit load analysis for the complex cracked pipe subjected to combined bending and tension is performed considering the crack closure effect in the compressive-stressed region. Comparison with ten published test data and the results from existing method shows that the present method not only reduces non-conservatism associated with the existing method, but also provides consistent and overall satisfactory results.
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