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Stress Intensity Factors and Kink Angle of a Crack Interacting with a Circular Inclusion Under Remote Mechanical and Thermal Loadings  

Lee, Saebom (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
Park, Seung-Tae (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
Earmme, Youn-Young (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
Chung, Dae-Youl (KNGR Project Team, Korea Electric Power Research Institute)
Publication Information
Journal of Mechanical Science and Technology / v.17, no.8, 2003 , pp. 1120-1132 More about this Journal
Abstract
A problem of a circular elastic inhomogeneity interacting with a crack under uniform loadings (mechanical tension and heat flux at infinity) is solved. The singular. integral equations for edge and temperature dislocation distribution functions are constructed and solved numeric-ally, to obtain the stress intensity factors. The effects of the material property ratio on the stress intensity factor (SIF) are investigated. The computed SIFs are used to predict the kink angle of the crack when the crack grows.
Keywords
Inclusion; Crack; Complex Potential; Stress Intensity Factor; Kink Angle;
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