Fracture Problems in Power Law Viscoelastic Materials.
Final rept. 1 Apr 83-31 Mar 84,
TEXAS A AND M UNIV COLLEGE STATION DEPT OF MATHEMATICS
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This report summarizes progress on several theoretical questions concerning contact and fracture phenomena for viscoelastic material. Specifically, the following topics are discussed 1 the dynamic, steady-state propagation of a semi-infinite crack in a general, isotropic and homogeneous linearly viscoelastic layer of finite thickness 2 the determination of the angular dependence of the stress field in the neighborhood of a dynamically propagating crack tip in linearly viscoelastic material 3 the quasi-static and steady-state sliding of a rigid indentor over a power-law inhomogeneous, linearly viscoelastic halfplane and 4 the quasi-static propagation of a semi-infinite, mode I crack in a power-law inhomogeneous, linearly viscoelastic body.