Paper Title
Integrity Evaluation of 3d Cracks in Cladding Materials using Finite Element Analysis

In this paper, a new system was developed in evaluating stress intensity factors (S.I.Fs) of three-dimensional cracks found in cladding materials. Generally, the system must be easy for ordinary engineers to use. The author has proposed a noel automatic finite element (FE) mesh generation method for complex geometries based on computational geometry. By integrating this mesh generator, one of commercial FE analysis codes and some additional techniques, the author has developed a new automated system for analyzing the S.I.Fs of 3D cracks in composite structures. This system is applied to analyze stress intensity factor effect of surface cracks in composite materials. Keywords - Automatic Mesh Generation, Cladding Materials, Fuzzy Theory, Singular Element, Stress Intensity Factor