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Abstract
In this paper the problem of the infinite parallel row of cracks is analyzed under the assumption of plain strain by the use of a suitable form of the Neuber-Papkovich representation. Two types of boundary conditions on the side edges of the strip are considered; 1. (1) the edges are confined between fixed smooth rigid planes, 2. (2) the edges are free of stresses. The problem is reduced to that of solving a Fredholm integral equation of the second kind and the solution of this equation is obtained by the iteration method and numerically by the use of Gaussian quadrature formulas. The effect of the crack array distance and the width of the strip on the stress intensity factor is shown graphically.
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