Granular media filler assisted push bending method of thin-walled tubes with small bending radius

doi:10.1016/j.ijmecsci.2021.106365

IMR OpenIR

	Granular media filler assisted push bending method of thin-walled tubes with small bending radius
	Song, Hong-wu 1; Xie, Wenlong 1,2; Zhang, Shi-Hong 1; Jiang, Weihao 3; Lazarescu, Lucian 4; Banabic, Dorel 4
通讯作者	Zhang, Shi-Hong(shzhang@imr.ac.cn)
	2021-05-15
发表期刊	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
ISSN	0020-7403
卷号	198 页码:11
摘要	Thin-walled bent tubes with small bending radius are one of the key components used in airspace and aerospace launch vehicles and various electrical equipment. Traditional forming technology for such bent tubes is the welding of two stamped half bends, which cannot meet the high reliability demand anymore, so forming technology for the seamless bends becomes an imperative requirement. This paper presents a new push bending method with granular media filler for thin-walled tubes with small relative bending radius. The pressure distribution of the granular system is investigated by discrete element method (DEM). The bending deformation strengthening is the key advantage of the granular system in preventing tube forming defects especially wrinkling. In addition, the effects of the particle diameter, internal friction of the granular system and the counter-pressure on the internal pressure distribution are explored. Tubes with large diameter, thin-wall thickness, and small relative bending radius were formed, which validates the positive role of granular media on improving wrinkle resistance during bending. All these results indicate that granular media as a filler provides new opportunities for bending thin-walled tubes with small relative bending radius.
关键词	Thin-walled tube Internal pressure Granular media Discrete element method
资助者	National Natural Science Foundation of China
DOI	10.1016/j.ijmecsci.2021.106365
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51875547]
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000663406300010
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160557
专题	中国科学院金属研究所
通讯作者	Zhang, Shi-Hong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shichangxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Guizhou Liyang Aeroengine Corp, Guiyang 550000, Peoples R China 4.Tech Univ Cluj Napoca, Dept Mfg Engn, Cluj Napoca 400641, Romania
推荐引用方式 GB/T 7714	Song, Hong-wu,Xie, Wenlong,Zhang, Shi-Hong,et al. Granular media filler assisted push bending method of thin-walled tubes with small bending radius[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2021,198:11.
APA	Song, Hong-wu,Xie, Wenlong,Zhang, Shi-Hong,Jiang, Weihao,Lazarescu, Lucian,&Banabic, Dorel.(2021).Granular media filler assisted push bending method of thin-walled tubes with small bending radius.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,198,11.
MLA	Song, Hong-wu,et al."Granular media filler assisted push bending method of thin-walled tubes with small bending radius".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 198(2021):11.