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Material Property Checks for MAT9

Material Property Checks for MAT9

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Material Property Checks for MAT9

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MAT9 only applies to 3D elements.

Material Requirements

MAT9

Mathematical

none

Semi-stability

If any eigenvalues of [G] < 0, an error termination will occur.

PARAM,CHECKMAT,NO will disable this error.

Not all zeros

If all eigenvalues of [G] = 0, an error termination will occur.

If any eigenvalue of [G] = 0, a warning is provided.

Consistency

none