Author(s)

V. Zozulya & P. Rivera

Abstract

Dynamic fracture mechanics with crack edges contact interaction V. Zozulya & P. Rivera C/efzc/a y TacWog/a aW M^a6, v4. C Ca//z J7 A^ 7P(9 ^rra 72 y 7^ Col. Garcia Gineres, Merida, Yucatan, Mexico Abstract This paper resents some elastodynamic contact problems with unilateral restrictions and friction for bodies with cracks. There are considered case of general dynamic loading and also relevant case of harmonic loading. The mathematical aspects of those problems are discussed briefly. The problems of a tension-compression plane harmonic wave interaction with one and two co-linear cracks of the finite length with allowance of unilateral contact interaction of the crack edges are solved. The influence of contact interaction of the cracks edges on a stress intensity factor is worked out. 1. Statement of problem Let we have an elastic body in three-dimensional Euclidean space R? that occupies the volume V. The boundary of the body 9V is a piece wise- smooth one a

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