Stress and Displacement Fields at a Transient Crack Tip Propagating in Functionally Graded Materials

Abstract:

Stress and displacement fields for a transient crack tip propagating along gradient in functionally graded materials (FGMs) with an exponential variation of shear modulus and density under a constant Poisson's ratio are developed. The equations of transient motion in nonhomogeneous materials are developed using displacement potentials and the solution to the displacement fields and the stress fields for a transient crack propagating at nonuniform speed though an asymptotic analysis.

• Periodical: Key Engineering Materials (Volumes 345-346)
• Pages: 481-484
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.345-346.481
• Online since: August 2007
• Authors: Kwang Ho Lee, Gap Su Ban
• Keywords: Displacement, Dynamic Stress Intensity Factor (DSIF), Functionally Graded Material (FGM), Stress Field, Transient Crack Propagation

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