Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5021700 | Composites Part B: Engineering | 2017 | 35 Pages |
Abstract
Carbon fiber reinforced plastic (CFRP) laminated composites, called bi-stable composites, are applied as soft morphing host structural component. These bi-stable composites have two cylindrical stable states which have parallel direction between fiber direction of composites and principle curvature of bi-stable shape. Their final curvature can be tailored by the initial curvature. However, the cross-ply composites have twisted shape in a certain negative initial curvature. These twisted shapes also have bi-stability. Herein, the reasons for the twisted shapes are discussed from a mechanical perspective. In addition, the twisted shape was simulated by a developed analytical model considering the discussed mechanical mechanism. The simulation results show that the CFRP laminated composites have two kinds of bi-stable states (conventional shape or twisted shape) and a mono-stable state with respect to the negative initial curvature. These analytical results were verified by comparing them with those obtained by finite element analysis (FEA).
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Hyeok Lee, Jong-Gu Lee, Junghyun Ryu, Maenghyo Cho,