钢板喷丸处理残余应力场和表面粗糙度数值模拟

强斌; 李亚东; 顾颖; 杨元录

doi:10.3969/j.issn.0258-2724.2015.04.018

钢板喷丸处理残余应力场和表面粗糙度数值模拟

doi: 10.3969/j.issn.0258-2724.2015.04.018

强斌¹,
李亚东^1, ,,
顾颖¹,
杨元录²

基金项目:

国家自然科学基金资助项目(51378430)

中央高校基本科研业务费专项资金科技创新项目(SWJTU11CX005)

详细信息

作者简介:
强斌(1987-),男,博士研究生,研究方向为钢桥焊接的应力与变形控制,E-mail:binqiang1987@163.com

通讯作者:
李亚东(1956-),男,教授,博士生导师,研究方向为桥梁设计理论与施工控制、钢桥稳定与疲劳等,E-mail:ydli@swjtu.cn

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出版历程
- 收稿日期: 2014-09-15
- 刊出日期: 2015-08-25

Numerical Simulation of Residual Stress Field and Surface Roughness for Steel Plate Subjected to Shot Peening

摘要

摘要: 为了揭示钢板喷丸处理后残余应力场以及表面粗糙度的分布规律,采用有限元软件ABAQUS建立了多丸模型,模拟了铸铁丸对桥梁用钢Q345钢板的喷射过程,对比分析了冲击速度、冲击次数和弹丸直径对喷丸后钢板水平向残余应力沿板厚的分布以及表面粗糙度的影响.研究结果表明,随着冲击速度、冲击次数以及弹丸直径的增加,残余压应力有均匀化的趋势,并且分布范围逐渐向厚度方向发展,同时表面粗糙度也随之逐渐增大.根据表面粗糙度随冲击次数的变化规律,建议采用对数函数来表示二者的关系,并给出了弹丸直径为1.4 mm情况下表面粗糙度值与喷丸速度和冲击次数的相互关系.
- 桥梁用钢 /
- 喷丸 /
- 数值模拟 /
- 残余应力 /
- 表面粗糙度
Abstract: In order to study the distribution of residual stress field and surface roughness of a steel plate after shot peening treatment, finite element models of shot peening with multiple shots are established using ABAQUS. Through the models, the dynamic process of cast shot peening of Q345 steel plates used for bridge is simulated. Moreover, the effect of impact velocity, impact times, and shot diameter on the horizontal residual stress along the depth and on the surface roughness are analyzed. The results show that as the impact velocity, impact times, and shot diameter increase, the residual compressive stress has a trend of homogenization, the stress distribution range develops gradually in the direction of thickness, and the surface roughness increases gradually. According to the law of surface roughness changing with the impact times, a logarithmic function is proposed to represent the relationship between surface roughness and impact times. In addition, given a shot diameter of 1.4 mm, the relationship between surface roughness, impact velocity and impact times is presented.
- bridge steel /
- shot peening /
- numerical simulation /
- residual stress /
- surface roughness

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参考文献(35)

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文章访问数: 1092
HTML全文浏览量: 71
PDF下载量: 506
被引次数: 0

钢板喷丸处理残余应力场和表面粗糙度数值模拟

doi: 10.3969/j.issn.0258-2724.2015.04.018

作者简介: 强斌(1987-),男,博士研究生,研究方向为钢桥焊接的应力与变形控制,E-mail:binqiang1987@163.com

通讯作者: 李亚东(1956-),男,教授,博士生导师,研究方向为桥梁设计理论与施工控制、钢桥稳定与疲劳等,E-mail:ydli@swjtu.cn

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Numerical Simulation of Residual Stress Field and Surface Roughness for Steel Plate Subjected to Shot Peening

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目录

作者简介:
强斌(1987-),男,博士研究生,研究方向为钢桥焊接的应力与变形控制,E-mail:binqiang1987@163.com

通讯作者:
李亚东(1956-),男,教授,博士生导师,研究方向为桥梁设计理论与施工控制、钢桥稳定与疲劳等,E-mail:ydli@swjtu.cn