Large out-of-plane deformations are developed in unsymmetric composite laminates at room temperature upon being cured flat in an autoclave. Common applications of composites utilize symmetric stacking sequence to avoid unpredicted warping. Meanwhile, bistable characteristics of unsymmetric composite laminates, if utilized, would allow adding more favorable properties beyond their enhanced mechanical properties and elastic coupling. Focusing on the bistable characteristics of unsymmetric cross- ply laminates two tasks are undertaken. First, key geometric parameters controlling...