Determination of Growing Direction of Fatigue Crack

Yao Dai; Wei Tan; Chang Qing Sun; Jia Wen He

doi:10.4028/www.scientific.net/KEM.353-358.1057

Paper Titles

Numerical Simulation of Rock Stability under Dynamic Blasting Load
p.1041

Numerical Simulation of Fracture Process Zone in Concrete Tension Specimen
p.1045

Numerical Studies of End Effect on Crack Propagation Behavior of Brittle Specimen Containing Pre-Existing Crack under Uniaxial Compression
p.1049

On the Relations between the Threshold Values of the Fatigue Crack Growth and the Cyclic Deformation Behavior of Materials
p.1053

Determination of Growing Direction of Fatigue Crack
p.1057

Investigating Morphology Evolution of Damage by a Cellular Automaton Modelling
p.1060

Thermal Strength Evaluation of the Super Alloy Structure with Various Thermal Insulation Performances by FEM and Stress-Rupture Experiment
p.1064

Monte Carlo Simulation of Stress Corrosion Cracking in Structural Metal Materials Taking Account of Surface Crack Effects
p.1068

Dynamic Analysis and Three-Dimensional Finite Element Simulation of Cracked Gear
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 353-358Determination of Growing Direction of Fatigue...

Determination of Growing Direction of Fatigue Crack

Abstract:

The stress field of an interfacial crack in non-homogeneous materials is computed using the semi-analytical method of arbitrary lines (MAL). Then, the eigen-functions of stress, strain and displacement, i.e. the angular distribution functions near a crack tip, are analyzed based on our wedge-shape non-homogeneous model. Finally, the growing direction of the interfacial crack is determined according to the relevant maximum normal stress criterion accurately. Therefore, the effective approach is provided for solving the complicated crack growing directions of an interfacial crack in non-homogeneous materials.