Fe-C合金拉伸力学性能温度和应变率效应的分子动力学研究

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户：pkpm1

【摘要】

：

本文建立了钢材的基本组成部分Fe-C 合金在原子尺度的微观模型，利用分子动力学方法模拟Fe-C 合金的单轴拉伸过程，研究温度和应变率对Fe-C 合金拉伸力学性能的影响。结果表明：Fe-C 合金的弹性模量、屈服强度和峰值应变都随着温度的升高而逐渐降低；应变率的变化对弹性模量没有影响，屈服强度和峰值应变则随着应变率的增大而增大。根据分子动力学模拟结果，提出了Fe-C 合金拉伸力学性能温度和应变率效应

【作者】

：

周继凯朱清华

【机构】

：

河海大学土木与交通学院,南京210098

【出处】

：

中国计算力学大会2018暨国际华人计算力学大会2018

【发表日期】

：

2018年10期

【关键词】

：

分子动力学模拟 Fe-C合金拉伸力学性能应力-应变

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Fe-C合金拉伸力学性能温度和应变率效应的分子动力学研究

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