Influence of heterogeneities introduced into the modelling of a ring compression test

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• 作者：Laurent Bizet ; ^{laurent.bizet@univ-smb.fr} ; Ludovic Charleux ; ^{ludovic.charleux@univ-smb.fr} ; Pascale Balland ; ^{pascale.balland@univ-smb.fr} ; Laurent Tabourot ; ^{laurent.tabourot@univ-smb.fr}
• 关键词：Heterogeneous models ; Plasticity ; Elasticity ; Ring compression test
• 刊名：Archives of Civil and Mechanical Engineering
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：17
• 期：2
• 页码：365-374
• 全文大小：2272 K
• 卷排序：17

文摘

This paper analyses the influence of heterogeneities introduced into the constitutive model of Aluminium alloy 6060. Two types of modelling are hereby presented: a standard phenomenological homogeneous model and a compartmentalized hybrid model, the formulation of which is based on the physical phenomena underlying plasticity. The mechanical parameters needed to establish such models are determined by two different experimental tests: a uniaxial tensile test and a ring compression test. The ability of such models to simulate a forming operation that differs from the operation used to determine their parameters will then be discussed.