
Proceedings Paper
Deformation characteristics of CFRP bi-stable composites according to negative initial curvatureFormat | Member Price | Non-Member Price |
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Paper Abstract
Deformation characteristic of CFRP bi-stable composites according to negative initial curvature is discussed, and twisted
shape bi-stability of CFRP composites is introduced. Initial curvature of composites has effect on final curvature of bistable
composites. Positive initial curvature tailor final curvature linearly. However, some negative initial curvature
induces twisted shape bi-stability. CFRP laminated composites have three different final state (i.e. conventional shape bistability,
mono-stability, and twisted shape bi-stability) according to initial curvature. Twisted shape bi-stable composites
have different curvature changing characteristic from conventional shape bi-stable composites. In order to analysis effect
of initial curvature, analytical model that include force and moment equilibrium is proposed. FE simulation results and
analytical results are compared to verify the proposed analytical model. It is verified that some range of negative initial
curvature induce losing of bi-stability or twisted shape bi-stability by analytical model. Final state shape of three
different state is analyzed by FE simulation and analytical model. Final states shape from two different analyses are well
matched each other in three different state.
Paper Details
Date Published: 11 April 2017
PDF: 8 pages
Proc. SPIE 10165, Behavior and Mechanics of Multifunctional Materials and Composites 2017, 101651L (11 April 2017); doi: 10.1117/12.2259909
Published in SPIE Proceedings Vol. 10165:
Behavior and Mechanics of Multifunctional Materials and Composites 2017
Nakhiah C. Goulbourne, Editor(s)
PDF: 8 pages
Proc. SPIE 10165, Behavior and Mechanics of Multifunctional Materials and Composites 2017, 101651L (11 April 2017); doi: 10.1117/12.2259909
Show Author Affiliations
Hyeok Lee, Seoul National Univ. (Korea, Republic of)
Jong-Gu Lee, Seoul National Univ. (Korea, Republic of)
Jong-Gu Lee, Seoul National Univ. (Korea, Republic of)
Junghyun Ryu, Korea Atomic Energy Research (Korea, Republic of)
Maenghyo Cho, Seoul National Univ. (Korea, Republic of)
Maenghyo Cho, Seoul National Univ. (Korea, Republic of)
Published in SPIE Proceedings Vol. 10165:
Behavior and Mechanics of Multifunctional Materials and Composites 2017
Nakhiah C. Goulbourne, Editor(s)
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