在abaqus里,No bulk modulus is defined for acoustic element 753

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在abaqus里,No bulk modulus is defined for acoustic element 7539.All acoustic elements must have no
在abaqus里，No bulk modulus is defined for acoustic element 7539.All acoustic elements must have nonzero bulk modulus defined using *material and *acoustic medium.
Initialization of acoustic element material point data for element 7539 has failed because no bulk modulus exists for thiselement.
bulk modulus是什么？怎么在hypermesh里面定义？

杨氏模量啊,在hypermesh中定义了导入abaqus也要重新定义的.
再问： abaqus不熟，请问具体怎么定义？
再答：在材料定义中可以找到的。

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