Analysis of Arbitrarily Shaped Three Dimensional Cracks in an Infinite Body Using the FEAM

유한요소 교호법을 이용한 무한 물체에 존재하는 임의 형상의 삼차원 균열 해석

Many analysis methods, including finite element method, have been suggested and used for assessing the integrity of cracked structures. In the paper, in order to analyze arbitrarily shaped three dimensional cracks in an infinite body, the finite element alternating method is extended. The cracks are modeled as a distribution of displacement discontinuities by the displacement discontinuity method and the symmetric Galerkin boundary element method. Applied the proposed method to several example problems for planner cracks in finite bodies, the accuracy and efficiency of the method were demonstrated.