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A simplified formulation for predicting wrinkling of thin-wall elbow tube in granular media-based push-bending process
Liu, Hai1; Zhang, Shi-Hong2; Ding, Yun-Peng1; Shi, Gao-Lian1; Geng, Zhe1
Corresponding AuthorZhang, Shi-Hong(shzhang@imr.ac.cn) ; Ding, Yun-Peng(dyp_112@163.com)
2021-05-11
Source PublicationINTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
ISSN0268-3768
Pages9
AbstractWrinkling is the key forming defect in thin-wall tube bending process, when the wall thickness-to-diameter ratio is smaller than 0.01. The granular media-based thin-wall elbow push-bending process involves filling a tube with spherical particles and pushing the tube into a die to bend a tubular blank into an elbow shape. If the wall thickness of tube is smaller than the particle size, wrinkling significantly depends on micro contact force distribution in granular media, and the granular media cannot be approximately simulated by FEM. In the present paper, an elbow tube with 0.3 mm wall thickness, 30 mm outer diameter, and 90 mm bending radius is formed by granular media-based push-bending process. The wrinkling is investigated; especially, the micro contact force distribution at the initial buckling location is observed based on a 3D FEM-DEM coupling model. In the coupling model, FEM is used to simulate bending deformation of tubular blank, and DEM is used to simulate micro contact forces of particle flow. Finally, a simplified formulation is proposed for predicting wrinkling of thin-wall elbow tube in granular media-based push-bending process and validated by experiment of an elbow tube with 0.7 mm wall thickness, 70 mm outer diameter, and 105 mm bending radius.
KeywordElbow tube Wrinkling Granular media FEM-DEM coupling Push bending
Funding Organizationproject of Suzhou Key Laboratory Foundation
DOI10.1007/s00170-021-07168-2
Indexed BySCI
Language英语
Funding Projectproject of Suzhou Key Laboratory Foundation[SZS201815]
WOS Research AreaAutomation & Control Systems ; Engineering
WOS SubjectAutomation & Control Systems ; Engineering, Manufacturing
WOS IDWOS:000649258400001
PublisherSPRINGER LONDON LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160909
Collection中国科学院金属研究所
Corresponding AuthorZhang, Shi-Hong; Ding, Yun-Peng
Affiliation1.Suzhou Vocat Inst Ind Technol, Dept Precis Mfg Engn, 1 Zhineng Ave, Suzhou 215104, Peoples R China
2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Liu, Hai,Zhang, Shi-Hong,Ding, Yun-Peng,et al. A simplified formulation for predicting wrinkling of thin-wall elbow tube in granular media-based push-bending process[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2021:9.
APA Liu, Hai,Zhang, Shi-Hong,Ding, Yun-Peng,Shi, Gao-Lian,&Geng, Zhe.(2021).A simplified formulation for predicting wrinkling of thin-wall elbow tube in granular media-based push-bending process.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,9.
MLA Liu, Hai,et al."A simplified formulation for predicting wrinkling of thin-wall elbow tube in granular media-based push-bending process".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY (2021):9.
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