Quasi-isotropic lay-ups

A quasi-isotropic laminate uses equally represented directions—commonly 0°, +45°, −45° and 90°—to obtain approximately equal in-plane extensional stiffness in every direction.

In simple terms

A quasi-isotropic laminate uses equally represented directions—commonly 0°, +45°, −45° and 90°—to obtain approximately equal in-plane extensional stiffness in every direction.

General aircraft skins, plates, covers, vehicle structures and test coupons with multidirectional in-plane loads.

Related tools

Use the calculators to turn these concepts into preliminary engineering estimates.