Tsai-Wu Failure Criterion
The required material limits for the Tsai-Wu failure criterion are as follows:
When you select Tsai-Wu as the failure criterion in the Material Definition dialog box, you must specify the values of each of these material limits.
For information about the Tsai-Wu failure criterion for a plane stress state, see Jones, Robert M., Mechanics of Composite Materials. Washington, DC: Taylor and Francis Book Company, 1975.