Interface cracks in an orthotropic layered halfspace under impact loading
Abstract
The plane problem of two interface cracks in a layered orthotropic halfspace excited by a time harmonic antiplane impact loading applied at a point on the surface is investigated. Using the representation theorem for the displacements, the boundary value problem is formulated in terms of singular integral equations for the displacement jump (COD) across the cracks. An appropriate expansion of the unknown COD function into Chebychev polynomials leads to a system of algebraic equations for the expansion coefficients. As an example, a layered halfspace with two cracks loaded by a line load at the surface are considered and numerical results are presented.
 Publication:

Twelfth Canadian Congress of Applied Mechanics
 Pub Date:
 May 1989
 Bibcode:
 1989apme.proc..176K
 Keywords:

 Boundary Value Problems;
 Cracks;
 Cyclic Loads;
 Displacement;
 Half Spaces;
 Impact Loads;
 Laminates;
 Orthotropic Plates;
 SolidSolid Interfaces;
 Fiber Orientation;
 Fracture Mechanics;
 Singular Integral Equations;
 Singularity (Mathematics);
 Structural Mechanics