Experimental determination and finite element analysis of coefficients of the multi-parameter Williams series expansion in the vicinity of the crack tip in linear elastic materials. Part II

In this study coefficients of the multi-parameter Williams power series expansion for stress field in vicinity central crack rectangular plate and semi-circular notched disk under bending are obtained by use finite element analysis. SIMULIA Abaqus, analysis software, numerical solutions these two cracked geometries found. The with has geometry similar to used digital photoelasticity. Numerical simulations same specimen as experimental photoelasticity method performed. utilized determination expansion. higher-order extracted from calculations implemented Simulia Abaqus software package outcomes compared values. Determination terms is performed using least squares-based regression technique known over-deterministic method, which stresses data numerically taken inputs. a small been considered either. This kind comparison theoretical solution based on complex variable theory plane elasticity. It shown that match good accuracy. notch