前混合水射流多弹丸喷丸模型及残余应力场的数值模拟

doi:10.3901/JME.2020.04.224

摘要/Abstract

摘要： 针对前混合水射流的液固湍动特性与喷丸过程多重非线性耦合作用行为，提供一种射流喷丸强化残余应力场的有限元分析法。采用液固两相流动理论与计算流体动力学方法分析喷嘴内流特性，建立射流多弹丸喷丸模型；基于弹丸速度冲击载荷加载制度，利用多线性各向同性强化弹塑性模型，应用动态接触对称罚函数法，运用ABAQUS软件模拟不同弹丸数量作用下射流喷丸在45钢材料表层产生的残余应力场，获得残余应力场的分布规律及残余应力沿深度的变化规律；得出射流喷嘴内流呈均质流流型，不同弹丸数量射流喷丸在材料表层产生的径向残余应力沿深度的变化规律相同，但在材料表面产生的径向残余压应力值受喷丸模型影响较大，对弹丸分三层排列、相邻弹丸之间径向和周向中心距离均为弹丸半径的多弹丸喷丸模型，数值模拟获得的表面径向残余压应力值与射流喷丸试验数据基本吻合。

关键词: 前混合水射流, 喷丸强化, 喷丸模型, 残余应力场, 数值模拟

Abstract: In view of the liquid-solid turbulence behavior of premixed water jet and multiple nonlinear coupling behavior in shot peening process, an analysis method of finite element for jet peening strengthening residual stress field is provided in this article. The liquid-solid two-phase flow theory and computational fluid dynamics method are used to analyze the internal flow characteristics of the nozzle, and the jet shot peening model of multiple projectiles is established. Based on projectile speed impact load loading system, an elastic-plastic model with multilinear isotropic hardening and dynamic contact symmetric penalty function method are adopted, and the finite element software ABAQUS is used to simulate the residual stress fields produced on the surface layer of 45 steel by jet peening under different number of projectiles, thereby the distribution law of residual stress field and the variation law of residual stress along depth are revealed. It is found that the internal flow of the jet nozzle presents a homogeneous flow pattern. The variation law of the radial residual stress along the depth produced by different number of projectiles jet peening on the surface layer of the material is the same. But the radial residual pressure stress value on the surface of the material is greatly affected by the shot peening model, for the multiple projectile shot peening model, whose projectiles are arranged in 3 layers, the radial and circumferential center distance between adjacent projectiles are all the radius of the projectile, the surface radial residual pressure stress value calculated by numerical simulation is proximate to the test data of jet shot peening.

Key words: premixed water jet, peening strengthening, shot peening model, residual stress field, numerical simulation

中图分类号:

TP668

董星, 刘雨庆, 段雄. 前混合水射流多弹丸喷丸模型及残余应力场的数值模拟[J]. 机械工程学报, 2020, 56(4): 224-232.

DONG Xing, LIU Yuqing, DUAN Xiong. Numerical Simulation of Multi-shot Shot Peening Models and Residual Stress Field of Premixed Water Jet[J]. Journal of Mechanical Engineering, 2020, 56(4): 224-232.

参考文献

[1] 董星,郭睿智,段雄. 前混合水射流喷丸强化表面力学特性及疲劳寿命试验[J]. 机械工程学报,2011,47(14):164-170. DONG Xing,GUO Ruizhi,DUAN Xiong. Surface mechanical characteristics and fatigue life experiments of premixed water jet peening strengthening[J]. Journal of Mechanical Engineering,2011,47(14):164-170.
[2] 李源,雷丽萍,曾攀. 弹丸束喷丸有限元模型数值模拟及试验研究[J]. 机械工程学报,2011,47(22):43-48. LI Yuan,LEI Liping,ZENG Pan. Shot stream finite element model for shot peening numerical simulation and its experiment study[J]. Journal of Mechanical Engineering,2011,47(22):43-48.
[3] SRIVASTAVA M,TRIPATHI R,HLOCH S,et al. Potential of using water jet peening as a surface treatment process for welded joints[J]. Procedia Engineering,2016,149:472-480.
[4] 张洪伟,张以都,吴琼.喷丸强化过程及冲击效应的数值模拟[J].金属学报,2010,46(1):111-117. ZHANG Hongwei,ZHANG Yidu,WU Qiong. Numerical simulations of shot-peening process and impact effect[J]. Acta Metallurgica Sinica,2010,46(1):111-117.
[5] KIM T,LEE H,JUNG S,et al. A 3D FE model with plastic shot for evaluation of equi-biaxial peening residual stress due to multi-impacts[J]. Surface & Coatings Technology,2012,206:3125-3136.
[6] 凌祥,彭薇薇,倪红芳.喷丸三维残余应力场的有限元模拟[J].机械工程学报,2006,42(8):182-189. LING Xiang,PENG Weiwei,NI Hongfang. Simulation of 3D residual stress field of shot peening by dynamic finite element analysis[J]. Chinese Journal of Mechanical Engineering,2006,42(8):182-189.
[7] 董星,张海录,段雄.水射流喷丸强化残余应力场的有限元模拟[J].机械工程学报,2010,46(18):189-194. DONG Xing,ZHANG Hailu,DUAN Xiong. Finite element simulation of residual stress field with water jet peening strengthening[J]. Journal of Mechanical Engineering,2010,46(18):189-194.
[8] 王明涛,曾元松,尚建勤,等. 基于ABAQUS的大尺寸弹丸喷丸过程数值模拟[J].塑性工程学报,2012,19(5):109-114. WANG Mingtao,ZENG Yuansong,SHANG Jianqin,et al. Numerical simulations of shot peening with large balls based on ABAQUS[J]. Journal of Plasticity Engineering,2012,19(5):109-114.
[9] 强斌,李亚东,顾颖,等. 钢板喷丸处理残余应力场和表面粗糙度数值模拟[J].西南交通大学学报,2015,50(4):691-697. QIANG Bin,LI Yadong,GU Ying,et al. Numerical simulation of residual stress field and surface roughness for steel plate subjected to shot peening[J]. Journal of Southwest Jiaotong University,2015,50(4):691-697.
[10] 杨诗婷,邢永明,赵燕茹,等. 单个弹丸撞击316 L不锈钢引起的变形场[J]. 爆炸与冲击,2017,37(1):126-133. YANG Shiting,XING Yongming,ZHAO Yanru,et al. Deformating field in 316 L stainless steel by single shot peening[J]. Explosion and Shock Waves,2017,37(1):126-133.
[11] HONG T,OOI J Y,SHAW B. A numerical simulation to relate the shot peening parameters to the induced residual stresses[J]. Engineering Failure Analysis,2008,15:1097-1110.
[12] SADASIVAM B,AROLA D. An examination of abrasive waterjet peening with elastic per-stress and the effects of boundary conditions[J]. Machining Science and Technology,2012,16:71-95.
[13] KUMAR N,SHUKLA M. Finite element analysis of multi-particle impact on erosion in abrasive water jet machining of titanium alloy[J]. Journal of Computational and Applied Mathematics,2012,236:4600-4610.
[14] GALLITELLI D,BOYER V,GELINEAU M,et al. Simulation of shot peening:From process parameters to residual stress fields in a structure[J]. Comptes Rendus Mecanique,2016,344:355-374.
[15] AHMADI M,SADEGHI B M,IRANI M,et al. Finite element simulation of shot peening of an aluminum alloy considering hardening models[J]. Russian Journal of Non-Ferrous Metals,2016,57(6):565-571.
[16] KAZUKI I,MASAKAZU S,KOICHI A,et al. Numerical analysis of residual stress distribution on peening process[J]. Weld World,2017,61:517-527.
[17] 刘大有. 二相流体动力学[M]. 北京:高等教育出版社,1993. LIU Dayou. Fluid dynamics of two-phase systems[M]. Beijing:Higher Education Press,1993.
[18] 张成光,张勇,张飞虎,等. 磨料水射流加工去除模型研究[J]. 机械工程学报,2015,51(7):188-196. ZHANG Chengguang,ZHANG Yong,ZHANG Feihu,et al. Study on removal model of abrasive waterjet machining[J]. Journal of Mechanical Engineering,2015,51(7):188-196.
[19] 董星,刘春生. 磨料射流技术[M]. 徐州:中国矿业大学出版社,2002. DONG Xing,LIU Cunsheng. Abrasive jet technology[M]. Xuzhou:China University of Mining and Technology Press,2002.
[20] 管路和沟的流体阻力出版分科会编. 固液两相流[J]. 水泵技术,1984(4):55-61. The Publishing Classified-assembly of the Fluid Resistance of Pipeline and Channel. Solid-liquid two phase flow[J]. Pump Technology,1984(4):55-61.
[21] 陈次昌,刘正英,刘天宝,等. 两相流泵的理论与设计[M]. 北京:兵器工业出版社,1994. CHEN Cichang,LIU Zhengying,LIU Tianbao,et al. Theory and design of two phase flow pump[M]. Beijing:The Publishing House of Ordnance Industry,1994.
[22] MIAO H Y,LAROSE S,PERRON C,et al. On the potential applications of a 3D random finite element model for the simulation of shot peening[J]. Advances in Engineering Software,2009,40:1023-1038.