Analytical evaluation on uniaxial tensile deformation behavior of fiber metal laminate based on SRPP and its experimental confirmation

作者: Byoung-Eon Lee , Eu-Ttem Park , Jeong Kim , Beom-Soo Kang , Woo-Jin Song

DOI: 10.1016/J.COMPOSITESB.2014.06.031

关键词: Deformation (engineering)Finite element methodFiber metal laminateFracture (geology)Computer simulationComposite materialMaterials scienceUltimate tensile strengthConstitutive equationVolume fraction

摘要: Abstract Uniaxial tensile tests have been carried out to accurately evaluate the in-plain mechanical properties of fiber metal laminates (FMLs). The FMLs in this paper comprised a layer self-reinforced polypropylene (SRPP) sandwiched between two layers aluminum alloy 5052-H34. In study, nonlinear and fracture behavior under in-plane loading conditions has investigated with numerical simulations theoretical analysis. simulation based on finite element modeling using ABAQUS/Explicit constitutive model volume fraction approach rule mixture modified classical lamination theory, which incorporates elastic–plastic SRPP, are used predict such as stress–strain response deformation FMLs. addition, pre-stretching process is reduce thermal residual stresses before uniaxial Through comparing analysis experimental results, it concluded that adopted can describe sufficient accuracy actual curve.

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