Influence of damage on the prediction of axial crushing behavior of thin-walled aluminum extruded tubes
作者： D Al Galib , A Limam , A Combescure
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摘要: Abstract In this paper, a new model is introduced to explain the cracked appearance and development observed in metallic tube energy absorbers when subjected axial crash. Fracture can play an important role deformation mode intrinsically associated with absorption such tubes. This paper illustrates idea that collapsed of tubes as well failure be relatively simply modeled using elastoplastic damage model. The chosen based on classical Lemaitre-Chaboche uncoupled approach. results series experimental aluminum crashes are given commented upon. numerical simulations then conducted standard finite element large strain analysis. It shown obtained modeling does not fit some results; hence, implemented applied, resulting simulat...
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