A Model for Determining Crack Opening Stress Intensity Factor Ratio under Tri-Axial Stress State
When studying 3D fatigue crack growth behaviors of materials, to determine the crack opening stress intensity factor ratio is the key issue. Elastic-plastic Fracture Mechanics theory and physical mechanism of cracks’ closure phenomena caused by plastic deformation are employed here. A model for determining the crack opening stress intensity factor ratio under tri-axial stress state is presented. The comparison of the present model with available data and models shows quite good agreement.
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Y. T. He et al., "A Model for Determining Crack Opening Stress Intensity Factor Ratio under Tri-Axial Stress State ", Key Engineering Materials, Vols. 297-300, pp. 1572-1578, 2005