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Accurate numerical modeling of residual stress fields induced by laser shock peening
Sun BY(孙博宇); Qiao HC(乔红超); Zhao JB(赵吉宾)
作者部门装备制造技术研究室
发表期刊AIP Advances
ISSN2158-3226
2018
卷号8期号:9页码:1-13
收录类别SCI ; EI
EI收录号20183705811328
WOS记录号WOS:000446058000053
产权排序1
资助机构NSFC-Liaoning Province united foundation ; National Natural Science Foundation of China
摘要

To improve the accuracy of numerical simulation of laser shock peening, a novel model is developed to predict residual stress distribution. An optical beam measurement system, a white light confocal displacement sensor, and other sensors are used to measure the laser shock peening parameters. Based on actual parameters, the model of shock wave pressure spatial distribution is established. Effects of key parameters, viz., overlapping rate and laser beam quality on residual stress distribution are analyzed by the proposed model. The influence mechanism of laser beam quality on residual stress hole is analyzed. Compared with conventional models, it is found that the proposed model has higher precision to predict residual stress distribution. The processing efficiency and strengthening effect can be improved by optimizing the overlapping rate and laser beam quality. The edge gradient of shock wave pressure reduces the intensity of the release wave convergence at the center, which can improve the uniformity of residual stress distribution. The proposed model can not only improve the accuracy of numerical simulation, but also provide guidance for optimizing the laser beam quality.

语种英语
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
关键词[WOS]TITANIUM-ALLOY ; ALUMINUM-ALLOY ; PART 1 ; SIMULATION
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Physics
资助项目NSFC-Liaoning Province united foundation[U1608259] ; National Natural Science Foundation of China[51501219]
引用统计
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/22782
专题装备制造技术研究室
通讯作者Qiao HC(乔红超)
作者单位Shenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, China
推荐引用方式
GB/T 7714
Sun BY,Qiao HC,Zhao JB. Accurate numerical modeling of residual stress fields induced by laser shock peening[J]. AIP Advances,2018,8(9):1-13.
APA Sun BY,Qiao HC,&Zhao JB.(2018).Accurate numerical modeling of residual stress fields induced by laser shock peening.AIP Advances,8(9),1-13.
MLA Sun BY,et al."Accurate numerical modeling of residual stress fields induced by laser shock peening".AIP Advances 8.9(2018):1-13.
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