Question: A quasi-isotropic laminate is defined as one whose extensional stiffness's are isotropic. Does the four-ply laminate [0/ 45/90] s satisfy this criterion? How about the

A quasi-isotropic laminate is defined as one whose extensional stiffness's are isotropic. Does the four-ply laminate [0/± 45/90] _s satisfy this criterion? How about the [0/± 45/90] _s laminate?

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