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.

我们考虑了在无剪切边界的正交各向异性带中以恒定速度运动的半无限裂纹。裂纹在钢带边界处施加恒定的法向位移的情况下传播。应用傅立叶变换将边值问题转换为标准的Wiener-Hopf方程。解决了该方程式，以找到应力强度因子和裂纹张开位移的解析表达式。绘制了应力强度因子和开裂位移与各种参数（如裂纹速度，带材宽度等）的关系图，以显示这些参数和材料的正交性对应力强度因子和开裂位移的影响。