Stress Intensity Factor Evaluation for Crack Emanating from Circular-Hole Using Finite Element Method.

Finite Element Analysis (FEA) combining with the concepts of Linear Elastic Fracture Mechanics (LEFM) provides a practical and convenient means to study the fracture and crack growth of the materials. 2-D finite element model is developed for two different geometries; a rectangular plate with cracks emanating from a circular hole and Double Edge Notched Plate (DENT). Both geometries are in tensile loading and under mode I conditions. In this paper, a displacement extrapolation technique is employed particularly, to predict the crack propagations directions and to, calculate the Stress Intensity Factors (SIFs). Therefore, verification of the predicted SIF and crack trajectory are validated, with the relevant numerical and analytical results obtained by other researchers. [ABSTRACT FROM AUTHOR]