PARAM, SRCOMPS
Bulk Data Entry Outputs the strength ratios for composite elements that have failure indices requested.
Parameter  Values  Description 

SRCOMPS  <YES, NO, blank> 

Comments
 The Strength Ratios that are output as a result of
PARAM, SRCOMPS, YES
depend on the Failure Theory specified by the user. The following equations show
the relationship between the Failure Index and the Strength Ratio for different
Failure Theories.
 Hill Failure
Theory:$\mathit{Strength}\hspace{0.17em}\mathit{Ratio}=\frac{1}{\sqrt{\mathit{Failure}\hspace{0.17em}\mathit{Index}}}$
 Hoffman Failure Theory:
There is no direct relationship between the Strength Ratio and Failure Index (refer to Composite Laminates in the User Guide for more information). OptiStruct solves the quadratic equation to find the strength ratio.
 TsaiWu Failure Theory:
There is no direct relationship between the Strength Ratio and Failure Index. (refer to Composite Laminates in the User Guide for more information). OptiStruct solves the quadratic equation to find the strength ratio.
 Maximum Stress (Strain) Failure
Theory:$Strength\text{}Ratio=\frac{1}{Failure\text{}Index}$
 Transverse Shear Failure
Theory:$Strength\text{}Ratio=\frac{1}{Failure\text{}Index}$
 Cuntze Failure
Theory:$Strength\text{}Ratio=\frac{1}{Failure\text{}Index}$
 Hill Failure
Theory: