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Study on the Snap-Through Behavior of Bistable Plates

[+] Author Affiliations
Yaying Fei, Lihua Chen, Wei Zhang

Beijing University of Technology, Beijing, China

Xiaozhi Zhang

University of Vermont, Burlington, VT

Paper No. SMASIS2016-9113, pp. V002T03A010; 5 pages
doi:10.1115/SMASIS2016-9113
From:
  • ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting
  • Stowe, Vermont, USA, September 28–30, 2016
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5049-7
  • Copyright © 2016 by ASME

abstract

This paper aims to analyze snap-through behavior of two-layer cross-ply bistable composite laminate square plates. The analyses consider the factors of laminate thickness, temperature and external applied force. In this study, the model was performed on the basis of the classical thin plate theory, the Von Kármán large deformation theory and Principle of Virtual Work. Afterwards the statics equilibrium equation was available. Subsequently the analysis was presented by adjusting the laminate thickness for these prior factors. Through the numerical simulations with Matlab® software, the curvatures in x-direction and y-direction were calculated to investigate the snap-through behavior. Two stable cylindrical configurations and an unstable saddle shape were given with different curvatures to show the equilibrium positions. Then the figures prove the external applied distributed force plays a vital role to the snap-through behavior. The results show that under macroscopic view, the ratio of side-length to thickness is three hundred or less, as the plates are thinner, the snap-through will appear more frequently, and the external forces will be less needed.

Copyright © 2016 by ASME

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