II.1.10.15 Tsai-Wu criterion (3D)
The 3D version of Tsai-Wu failure criterion leads to the following expression of the failure
index:
The values of and
are submitted to the
same limitations as
in section II.1.10.14. Ply passes the failure criterion if
The RF calculation is done as follows:
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and the strength ratio is given by:
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This criterion is referred to as “TsaiWu3D” criterion in FeResPost.