Material anisotropy effects on stress intensity factors and the effective elastic compliance
Abstract
Analytical expressions are developed for studying the influence of material anisotropy on stress intensity factors and the effective compliance of cracked planar solids. The method is based on a crack interaction analysis in which tractions represented by polynomial series are superimposed to satisfy the crack boundary conditions. By varying two anisotropy parameters which are ratios of certain combinations of the matrix compliance components, it is shown that the sensitivity of the stress intensity factors to anisotropy variation is related to the fracture mode, the crack interaction mode (i.e. amplification or shielding), and the anisotropy itself. Also, the anisotropy variation has a nonuniform impact on the effective compliance components, and the sensitivity of any one component to the variation is a function of the anisotropy parameters.
- Publication:
-
Engineering Fracture Mechanics
- Pub Date:
- May 1994
- Bibcode:
- 1994EnFM...48..177W
- Keywords:
-
- Anisotropy;
- Crack Propagation;
- Cracks;
- Elastic Properties;
- Fracture Mechanics;
- Stress Analysis;
- Stress Intensity Factors;
- Boundary Conditions;
- Fracturing;
- Sensitivity;
- Structural Mechanics