| Granular media filler assisted push bending method of thin-walled tubes with small bending radius | |
| Song, Hong-wu1; Xie, Wenlong1,2; Zhang, Shi-Hong1; Jiang, Weihao3; Lazarescu, Lucian4; Banabic, Dorel4 | |
| Corresponding Author | Zhang, Shi-Hong(shzhang@imr.ac.cn) |
| 2021-05-15 | |
| Source Publication | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
 |
| ISSN | 0020-7403 |
| Volume | 198Pages:11 |
| Abstract | 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. |
| Keyword | Thin-walled tube Internal pressure Granular media Discrete element method |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.ijmecsci.2021.106365 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51875547] |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| WOS ID | WOS:000663406300010 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160557 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Shi-Hong |
| Affiliation | 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 |
| Recommended Citation 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. |
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