『求助』瞬态热应力场模拟错误提示，请教如何解决
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我做激光烧结的，首先分析温度场，然后用间接耦合法分析应力场，可是在应力场分析中总是出现这个错误报告，拜托各位达人帮帮我，该怎么解决？
*** ERROR *** CP = 1793.250 TIME= 21:12:12
One or more elements have become highly distorted. Excessive
distortion of elements is usually a symptom indicating the need for
corrective action elsewhere. Try ramping the load up instead of step
applying the load (KBC,1). You may need to improve your mesh to
obtain elements with better aspect ratios. Also consider the behavior
of materials, contact pairs, and/or constraint equations. If this
message appears in the first iteration of first substep, be sure to
run shape checking of elements.
我已经试过KBC为0或者为1的两种状态，结果都一样
弹塑性的材料，材料属性我是参考资料查得的
单元是六面体solid45单元，有限元模型为长方体规则模型，不是在第一子步出现这个提示的，是计算了一段时间后出现的错误，请教大家，谢谢！
*** ERROR *** CP = 1793.250 TIME= 21:12:12
One or more elements have become highly distorted. Excessive
distortion of elements is usually a symptom indicating the need for
corrective action elsewhere. Try ramping the load up instead of step
applying the load (KBC,1). You may need to improve your mesh to
obtain elements with better aspect ratios. Also consider the behavior
of materials, contact pairs, and/or constraint equations. If this
message appears in the first iteration of first substep, be sure to
run shape checking of elements.
我已经试过KBC为0或者为1的两种状态，结果都一样
弹塑性的材料，材料属性我是参考资料查得的
单元是六面体solid45单元，有限元模型为长方体规则模型，不是在第一子步出现这个提示的，是计算了一段时间后出现的错误，请教大家，谢谢！
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