基于有限元模型的不同入射角弹丸冲击残余应力模拟  

Simulation of impact residual stress of shot with different angles of incidence based on finite element model

作　　者：郭思博 马贵春[1] 张化斌 王磊[1] 刘洋[1] 耿蕰娜 刘泽 Guo Sibo;Ma Guichun;Zhang Huabin;Wang Lei;Liu Yang;Geng Wenna;Liu Ze(College of Aerospace Engineering,North University of China,Shanxi Taiyuan,030051,China)

机构地区：[1]中北大学航空宇航学院,山西太原030051

出　　处：《机械设计与制造工程》2024年第3期11-14,共4页Machine Design and Manufacturing Engineering

摘　　要：建立弹丸冲击有限元模型研究弹丸入射角度对板材残余应力场和板材变形的影响,并对模拟结果进行拟合。利用ABAQUS软件建立了单弹丸冲击板材的三维对称模型,模拟了弹丸在不同速度下以90°入射角冲击板材所产生的残余应力场,以及在100 m/s的冲击速度下以3个不同入射角度冲击板材产生的残余应力场。结果显示:最大残余应力位置的深度与弹丸撞击速度呈正相关;弹丸速度一定的情况下,随着入射角的增大最大残余应力也不断增加,并且在入射角度为90°时达到最大。This paper established a finite element model to investigate the influence of projectile impact angle on the residual stress field and deformation of the target plate.With ABAQUS software.a three-dimensional symmetric model of a single projectile impacting a plate was developed.The simulation examined the residual stress field generated when the projectile impacted the plate at a 90°angle in different velocities,as well as the residual stress field generated when the projectile impacted the plate at three different angles in a velocity of 100 m/s.The results indicate that the depth of maximum residual stress is positively correlated with the projectile impact velocity.Furthermore,with a constant projectile velocity,the maximum residual stress increases as the impact angle increases,reaching its peak at a 90°angle of incidence.

关 键 词：喷丸成形 喷丸强化 残余应力 数字模拟 

分 类 号：TG30[金属学及工艺—金属压力加工]