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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 现任中国工程热物理学会流体机械专委员会委员、中国航空学会学轻型燃气轮机分会委员、教育部重型燃气轮机教学资源库专家委员会委员、辽宁省能动类专业教指委副主任、大连市核事故应急指挥部专家组成员等职。
性别：女
毕业院校：大连理工大学
学位：硕士
所在单位：能源与动力学院
电子邮箱：dlwxf@dlut.edu.cn
Euler based finite element analysis on high velocity impact behaviour in cold spraying
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论文类型：期刊论文
发表时间：2014-06-01
发表刊物：SURFACE ENGINEERING
收录刊物：SCIE、EI
卷号：30
期号：5
页面范围：309-315
ISSN号：0267-0844
关键字：Cold spray; FEA; Euler; Multimaterial; Multiparticle; Erosion
摘要：Finite element analysis on the high velocity impact behaviour in cold spraying is conducted using the Euler method. The simulation results demonstrate that the Euler method is capable of realising the reliable simulation on some complicated impact processes. The comparative deformation ratio (CDR) is proposed, which is defined as the ratio of dimensionless crater depth to compressional ratio, to evaluate the comparative deformation degree between the particle and substrate. Proper CDR and sufficiently large compressional ratio can ensure the well bonding between the particle and substrate. Furthermore, for the multiparticle impact process, it is found that, after the deposition of the first layer coating, the subsequent impact process can be considered as particles impacting on the same material no matter what substrate is coated. When the velocity is increased to a hypervelocity (erosion velocity), extreme erosion occurs in the substrate or the formed coatings, resulting in the poor performance of the coating.