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Viscoplastic flow of functional cellular materials with use of peridynamics
Meccanica ( IF 2.7 ) Pub Date : 2021-06-26 , DOI: 10.1007/s11012-021-01383-7
Eligiusz Postek , Zdzisław Nowak , Ryszard B. Pęcherski

The subject of the study is the deformation of the oxygen-free high conductivity copper. The copper sample is given in the form of a foam. The sample undergoes an impact into an elastic wall. The strain rate hardening effect is investigated. The numerical model of the open-cell foam skeleton is prepared in the framework of the peridynamics method. The dynamic process of compression with different impact velocities is simulated. It has been found that the strain rate hardening effect is essential for the load-carrying capacity of the material under study. Taylor impact test of solid cylinder analysis precedes the analysis of the metallic foam.



中文翻译:

使用近场动力学的功能性细胞材料的粘塑性流动

研究的主题是无氧高电导率铜的变形。铜样品以泡沫形式给出。样品受到弹性壁的冲击。研究了应变率硬化效应。在近场动力学方法的框架内建立了开孔泡沫骨架的数值模型。模拟了不同冲击速度下的压缩动态过程。已经发现,应变率硬化效应对于所研究材料的承载能力至关重要。实心圆柱体分析的泰勒冲击试验先于金属泡沫的分析。

更新日期:2021-06-28
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