ANSYS模拟混凝土不收敛应该怎么调整？

ANSYS模拟混凝土开裂时想要得出定性裂缝位置情况下的承载力大小，结果保护层总是开裂到一半就出现了“One or more elements have become highly distorted. Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. Try incrementing the load more slowly.........”请问有懂ANSYS模拟混凝土的能帮忙解决一下这个问题吗？有偿！价格可商量