균열이 있는 원공을 갖는 유한 평판에 대한 경계조건의 영향

Abstract

균열이 있는 원공을 가진 유한평판의 경계조건이 달라짐에 따라 응력확대계수와 응력, 변위분포에 어떠한 영향을 미치는가를 MMC(Modified Mapping Collocation)방법으로 해석하였다.

그 결과 균일변위조건의 경우가 균일응력조건 때보다 응력확대계수의 값이 작았고 그 차이는 균열의 길이가 커짐에 따라 증가하였다. 또 응력과 변위분포도 경계조건에 따라 큰 차이를 보였다.

The effect of boundary conditions on the stress intensity factor, stress and displacement distributions has been studied for a finite sheet having a cracked circular hole using MMC(Modified Mapping Collocation) method.

Stress intensity correction factor for uniform displacement condition is less than that for uniform stress condition and the difference increases as the crack length increases.

Furthermore, the stress and displacement distributions vary remarkably with respect to the boundary conditions.

The effect of boundary conditions on the stress intensity factor, stress and displacement distributions has been studied for a finite sheet having a cracked circular hole using MMC(Modified Mapping Collocation) method.

Stress intensity correction factor for uniform displacement condition is less than that for uniform stress condition and the difference increases as the crack length increases.

Furthermore, the stress and displacement distributions vary remarkably with respect to the boundary conditions.