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Analysis of Elasto-Plastic Postbuckling and Energy Release Rate for Delaminated Fiber Metal Laminated Beams in Thermal Environment

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Abstract

The elasto-plastic postbuckling of fiber metal laminated beams with delamination and the energy release rate along the delamination front are discussed in this paper. Considering geometrical nonlinearity, thermal environment and geometrical initial imperfection, the incremental nonlinear equilibrium equations of delaminated fiber metal laminated beams are established, which are solved using the differential quadrature method and iterative method. Based on these, according to the J-integral theory, the elasto-plastic energy release rate is studied. The effects of some important parameters on the elasto-plastic postbuckling behavior and energy release rate of the aramid reinforced aluminum laminated beams are discussed in details.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, 410082, Changsha, China

    Yiming Fu, Yang Chen & Xuefei Shao

  2. College of Mechanical and Vehicle Engineering, Hunan University, 410082, Changsha, China

    Yiming Fu, Yang Chen & Xuefei Shao

Authors
  1. Yiming Fu
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  2. Yang Chen
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  3. Xuefei Shao
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Corresponding author

Correspondence to Yang Chen.

Additional information

Project supported by the National Natural Science Foundation of China (No. 11272117).

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Fu, Y., Chen, Y. & Shao, X. Analysis of Elasto-Plastic Postbuckling and Energy Release Rate for Delaminated Fiber Metal Laminated Beams in Thermal Environment. Acta Mech. Solida Sin. 28, 693–705 (2015). https://doi.org/10.1016/S0894-9166(16)30010-6

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  • DOI: https://doi.org/10.1016/S0894-9166(16)30010-6

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