Composite Failure
Hi, I made a simple optimization - about composite optimization and steel plate size optimization, the following is the input file, the result shows FEASIBLE DESIGN (ALL CONSTRAINTS SATISFIED).
But when viewing the contour image, it is found that the partial area of the composite is invalid, the composite failure index greater than 1，does it mean that Optimizing the design is not feasible，
Can someone give some advice?Thanks in advance。