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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)
Department装备制造技术研究室
Source PublicationAIP Advances
ISSN2158-3226
2018
Volume8Issue:9Pages:1-13
Indexed BySCI ; EI
EI Accession number20183705811328
WOS IDWOS:000446058000053
Contribution Rank1
Funding OrganizationNSFC-Liaoning Province united foundation ; National Natural Science Foundation of China
Abstract

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.

Language英语
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS KeywordTITANIUM-ALLOY ; ALUMINUM-ALLOY ; PART 1 ; SIMULATION
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
Funding ProjectNSFC-Liaoning Province united foundation[U1608259] ; National Natural Science Foundation of China[51501219]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/22782
Collection智能产线与系统研究室
Corresponding AuthorQiao HC(乔红超)
AffiliationShenyang Institute of Automation, Chinese Academy of Science, Shenyang 110016, China
Recommended Citation
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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