Structural behaviour of fibre metal laminates subjected to a low velocity impact
作者： JiYing Fan , ZhongWei Guan , W. J. Cantwell
DOI: 10.1007/S11433-011-4261-9
关键词:
摘要: Structural impact tests were first presented to cover typical fibre metal laminates (FMLs) subjected a low velocity projectile impact, which produced the corresponding load-displacement traces and deformation/failure modes for validation of numerical models. Finite element (FE) models then developed simulate behaviour FMLs tested. The aluminium (alloy grade 2024-0) layer was modelled as an isotropic elasto-plastic material up on-set post failure stage, followed by shear tensile its mechanisms. glass laminate (woven glass-fibre reinforced composite) orthotropic damage, damage initiation evolution using Hashin criterion. controlled compressive stresses within lamina plane primarily determined tests. tensile/compressive fracture energies combined with both matrix. FE 2/1, 3/2 4/3 plates made 4-ply 8-ply cores validated against experimental results. Good correlation obtained in terms traces, deformation modes. ready be used undertake parametric studies various stack sequences composite cores.
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