The Multi-Scale FEM Simulation of Wire Fracture during Drawing of Perlitic Steel
The Multi-Scale FEM Simulation of Wire Fracture during Drawing of Perlitic Steel
复制标题
珠光体钢拉拔过程中钢丝断裂的多尺度有限元模拟
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
P. Kustra
中科院分区：
文献类型：
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作者：
A. Milenin;Z. Muskalski;P. Kustra
拉丝过程中的断裂发展是影响生产率和线材力学性能的重要因素。本文在两个不同的层次上研究了拉丝工艺--使用二维刚塑性有限元法（宏观层次）和通过代表性体积元（RVE）模拟微观组织变化（微观层次）。断裂的唯象理论用于预测断裂起始。在微观层次上研究了初始晶面取向对三轴因子和变形局部化的影响。所得结果有助于从根本上了解高强度帘线钢丝开发过程中珠光体的变形。
The fracture development during wire drawing operation is an important phenomenon governing the productivity as well as the mechanical properties of the drawn wire. The wire drawing processes was investigated in present paper in two separate levels - using the 2-dimensional rigid-plastic finite element method (macro-level) and modelling the microstructure changes (micro-level) by the Representative Volume Elements (RVEs). To predict fracture initiation the phenomenological theory of fracture is used. The influence of initial cementite lamellas orientation on triaxity factor and localization of deformation in micro-level is investigated. Obtained results are helpful for a fundamental understanding of pearlitic deformation during development of high strength steel wires for tire cord applications.