We have considered a semiinfinite crack moving with constant velocity in an
orthotropic strip with shear-free boundaries. The crack is propagating subjected to
constant normal displacements applied at the boundaries of the strip. The Fourier
transformation is applied to convert the boundary value problem into the standard
Wiener–Hopf equation. This equation has been solved to find out the analytical
expressions for the stress intensity factor and crack-opening displacement. The
graphs of stress intensity factor and crack-opening displacement have been plotted
against various parameters such as crack velocity, strip width etc. to show the effects
of these parameters and material orthotropy on stress intensity factor and
crack-opening displacement.
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