Fatigue and Fracture Mechanics Library

The ETBX Fatigue And Fracture Mechanics library contains modules that focus on the evaluation of stress concentrations, fatigue life, and crack formation and propagation. Click on a module name below to view the module's documentation.

Singular Stress and Displacement Fields - The Singular Stress and Displacement Fields module calculates the stresses and displacements at a point near a crack tip.

Miner's Rule - The Miner's Rule module calculates the fatigue life of a part under variable amplitude loading using constant amplitude fatigue life data.

Fatigue Crack Growth - The Fatigue Crack Growth module calculates the fatigue crack growth rate and the cycles-to-failure assuming a Safe-Life design approach.

Plastic Zone Size - The Plastic Zone Size module solves for the radius of the region of plastic strain near a crack tip.

Strain-Life Fatigue Analysis - The Strain-Life Fatigue Analysis module calculates the fatigue life of a part under constant amplitude oscillatory loading assuming that the strain range controls fatigue life.

Stress-Life Fatigue Analysis - The Stress-Life Fatigue Analysis module calculates the fatigue life of a part under constant amplitude oscillatory loading assuming that the stress range controls fatigue life.

Stress Concentration Factors - The Stress Concentration Factors module calculates stress concentration factors for various shaft and plate geometries assuming homogenous, isotropic, and elastic material.

Stress Intensity Factors - The Stress Intensity Factors module calculates the stress intensity factors for through cracks in flat plates subject to Mode I (normal to the crack plane), Mode II (in-plane shear loading), and Mode III (out-of-plane shear loading) loading. The module also calculates residual stress, maximum permissible crack length, and fracture toughness.