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首页> 外文期刊>Materials Science and Technology: MST: A publication of the Institute of Metals >Simulation of rolling deformation texture of fee metals with crystal plasticity finite element model
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Simulation of rolling deformation texture of fee metals with crystal plasticity finite element model

机译:用晶体可塑性有限元模型模拟贵金属的轧制变形织构。

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A rate dependent crystal plasticity constitutive model with respect to self-hardening and latent hardening in finite element (FE) analysis is developed to simulate rolling texture in the present paper. The influence of grain interaction is modelled by different assignment of orientations to FEs. The simulation results reveal that the grain interaction will lead to mesoscale inhomogeneous deformation and that grains rotate faster in the extended Taylor type crystal plasticity finite element (CPFE) model without consideration of grain interaction than in the full CPFE model with grain interaction. The rotation of grain boundary is slowed down owing to the grain interaction. Assigning more elements to one grain, in which both the boundary and interior of grain are simulated, better simulation results can be obtained.
机译:针对有限元分析中的自硬化和潜伏硬化,建立了与速率相关的晶体塑性本构模型,以模拟轧制织构。晶粒相互作用的影响是通过有限元取向的不同分配来建模的。仿真结果表明,在不考虑晶粒相互作用的扩展泰勒型晶体塑性有限元(CPFE)模型中,晶粒相互作用将导致中尺度不均匀变形,并且晶粒旋转比具有晶粒相互作用的完整CPFE模型更快。由于晶界的相互作用,晶界的旋转变慢了。将更多元素分配给一个晶粒,可以同时模拟晶粒的边界和内部,可以获得更好的模拟结果。

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