高速扩展裂纹尖端的各向异性塑性场

在裂纹尖端的应力分量都只是θ的函数的条件下，利用定常运动方程，应力应变关系及Hill各向异性屈服条件，我们得到反平面应变和平面应变两裂纹尖端的各向异性塑性场的一般解。将这些一般解用于具体一袭纹，我们就求出了Ⅰ型和Ⅱ型裂纹的高速扩展尖端的各向异性塑性场。

Anisotropic Plastic Fields at a Rapidly Propagating Crack-Tip

Under the condition thai all the stress components at a crack-tip are the functions of d only, making use of the equations of steady-state motion, stress-strain relations and Hill anisotropic yield conditions, we obtain the general solutions at a crack-tip in both the cases of anti-plane and in-plane strains. Applying these general solutions to the concrete cracks, the anisotropic plastic fields at the rapidly propagating tips of mode J and mode J cracks are derived.