A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tristable behaviour of cross-shaped unsymmetric fibre-reinforced laminates with concave–convex boundaries
Highlights A cross-shaped unsymmetric laminates has three stable configurations. The width will change the concave-convex boundary of the laminates. The sidelength and width determine whether the laminate has multistability.
Abstract This paper presents cross-shaped unsymmetric fibre-reinforced cross-ply laminates with concave–convex boundaries, which have three stable configurations. The third stable equilibrium configuration is a transition state which occurs in the snap process from the first to second equilibrium configurations. The snap processes, including the first–third–second and second–third–first, between the different stable equilibrium configurations of tristable cross-shaped unsymmetric laminates were investigated by experimental and numerical methods, and the parameters that characterise the tristable performance of the laminates, including the principal curvature, snap load, and displacement, were measured. The principal curvatures in different stable configurations were determined with analytical, experimental, and numerical methods, and the load–displacement curves and buckling phenomena in the snapping process were successfully recorded. Moreover, the influences of the reinforcement material, thickness of the single layer, and geometric parameters on the tristable performance of the cross-shaped unsymmetric fibre-reinforced cross-ply laminates were discussed. According to the results, the analytical, experimental, and numerical results agree well.
Tristable behaviour of cross-shaped unsymmetric fibre-reinforced laminates with concave–convex boundaries
Highlights A cross-shaped unsymmetric laminates has three stable configurations. The width will change the concave-convex boundary of the laminates. The sidelength and width determine whether the laminate has multistability.
Abstract This paper presents cross-shaped unsymmetric fibre-reinforced cross-ply laminates with concave–convex boundaries, which have three stable configurations. The third stable equilibrium configuration is a transition state which occurs in the snap process from the first to second equilibrium configurations. The snap processes, including the first–third–second and second–third–first, between the different stable equilibrium configurations of tristable cross-shaped unsymmetric laminates were investigated by experimental and numerical methods, and the parameters that characterise the tristable performance of the laminates, including the principal curvature, snap load, and displacement, were measured. The principal curvatures in different stable configurations were determined with analytical, experimental, and numerical methods, and the load–displacement curves and buckling phenomena in the snapping process were successfully recorded. Moreover, the influences of the reinforcement material, thickness of the single layer, and geometric parameters on the tristable performance of the cross-shaped unsymmetric fibre-reinforced cross-ply laminates were discussed. According to the results, the analytical, experimental, and numerical results agree well.
Tristable behaviour of cross-shaped unsymmetric fibre-reinforced laminates with concave–convex boundaries
Li, Yang (author) / Zhang, Zheng (author) / Yu, Xiaochen (author) / Chai, Hao (author) / Lu, Congda (author) / Wu, Helong (author) / Wu, Huaping (author) / Jiang, Shaofei (author)
Engineering Structures ; 225
2020-08-20
Article (Journal)
Electronic Resource
English
Transverse cracking of symmetric and unsymmetric glass-fibre/epoxy-resin laminates
| British Library Online Contents | 1997
Snap-through of unsymmetric cross-ply laminates using piezoceramic actuators
| Tema Archive | 2003
Snap-through of Unsymmetric Cross-ply Laminates using Piezoceramic Actuators
| British Library Online Contents | 2003
Thermally-Induced Shapes of Unsymmetric Laminates
| British Library Online Contents | 1996
Seismic behaviour of cross-shaped steel fibre reinforced concrete columns
| Springer Verlag | 2020