Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 11 Issue 1
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- Pages.36-43
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- 1987
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- 1225-5963(pISSN)
DOI QR Code
Boundary element analysis of stress intensity factors for Z-shaped cracks
Z형상 균열의 응력세기계수에 대한 경계요소 해석
Abstract
Stress intensity factors are computed by the boundary element method employing the multiregion technique along with the double-point concept. To demonstrate the validity of the current method, the stress intensity factors of the well-known simple models such as a slanted edge crack and an arcular crack are determined, in advanced, which are proved to be in good agreement within 5% with the pre-existing solutions. Z-shaped cracks are analyzed with various branch crack lengths and branching angles.
본 논문에서는 다중영역법과 이중절점법을 이용하여 응력세기 계수를 산정할 수 있는 컴퓨터 프로그램을 개발하고, 개발된 프로그램을 기존결과가 있는 직선균열 및 곡선균열에 적용하여 그 타당성을 검토한 후 엄밀해가 존재하지 않는 Z형상 균열에 대한 응력세기계수 값을 제시하고자 한다.
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