Acta Mechanica Solida Sinica

, Volume 28, Issue 6, pp 693–705 | Cite as

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

  • Yiming Fu
  • Yang Chen
  • Xuefei Shao


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.

Key Words

fiber metal laminated beams delamination temperature effect elasto-plastic post-buckling elasto-plastic energy release rate 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2015

Authors and Affiliations

  1. 1.State Key Laboratory of Advanced Design and Manufacturing for Vehicle BodyHunan UniversityChangshaChina
  2. 2.College of Mechanical and Vehicle EngineeringHunan UniversityChangshaChina

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