摘要
Inspired by living organisms,helicoidal structures are becoming increasingly important in replacing the conventional lamination scheme to enhance the toughness,strength,and stiffness of laminates.In helicoidal laminated composites,each layer is rotated by a specific angle with respect to the previous layer.In the present study,an attempt has been carried out to compare the free vibration and buckling behavior of the double-helicoidal and cross-helicoidal bio-inspired laminated composite plates under thermal conditions.The influence of lamination scheme,aspect ratio,end conditions,thermal conditions,sideto-thickness ratio,and skew angle on the free vibration and buckling behavior of the plate is investigated.The performance of helicoidal laminated composite plates is compared with that of cross-ply and quasi-isotropic laminates.The study reveals that the helicoidal composites outperform the cross-ply and quasi-isotropic laminates.In most cases studied,the cross-helicoidal plate exhibits stiff behavior.
