Notch sensitivity of circular rings subjected to impact loading
文献类型：期刊论文
| 作者 | Zhao YP(赵亚溥) ; Fang J; Yu TX(余同希)
|
| 刊名 | International Journal of Pressure Vessels and Piping
 |
| 出版日期 | 1996 |
| 卷号 | 67期号:3页码:257-261 |
| 关键词 | Lateral Compression Tubes |
| ISSN号 | 0308-0161 |
| 通讯作者 | Zhao, YP (reprint author), CHINESE ACAD SCI,INST MECH,LNM,BEIJING 100080,PEOPLES R CHINA. |
| 中文摘要 | 'Notch-sensitive regions' have been observed during a series of experimental investigations into the dynamic plastic behaviour and failure of thin-walled metallic radially notched circular rings with are-shaped supports subjected to concentrated impact loads. The experimental results show that the exterior notches at some regions have no effect on the deformation of the rings, but do have effect at the remaining regions. The notch-sensitive region is theoretically determined by using the equivalent structures technique; fairly good agreement has been reached between the simple theory and the experimental results. Both dimensional and theoretical analyses prove that whether a plastic hinge formed or not at the notched section does not depend on the mean radius of the ring and the input kinetic energy. It depends on the weak coefficient of the notched section and the angle of the support. Generally speaking, there are mainly three failure modes for a notched circular ring with are-shaped support under impact loading: Mode I, large inelastic deformation when the notch is outside the sensitive region, in this case the ring deforms as a normal one; Mode II, large inelastic deformation only at some part of the ring and tearing occurred at the notched sections; Mode III, large inelastic deformation and total rupture occurred at the notched sections. It is believed that the present study could assist the understanding of the dynamic behaviour and failure of other kinds of nonstraight components with macroscopic imperfections under impulsive loading. |
| 类目[WOS] | Engineering, Multidisciplinary ; Engineering, Mechanical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | LATERAL COMPRESSION ; TUBES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1996UF69500004 |
| 公开日期 | 2009-08-03 ; 2010-08-20 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/39142]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Zhao YP,Fang J,Yu TX. Notch sensitivity of circular rings subjected to impact loading[J]. International Journal of Pressure Vessels and Piping,1996,67(3):257-261. |
| APA | 赵亚溥,Fang J,&余同希.(1996).Notch sensitivity of circular rings subjected to impact loading.International Journal of Pressure Vessels and Piping,67(3),257-261. |
| MLA | 赵亚溥,et al."Notch sensitivity of circular rings subjected to impact loading".International Journal of Pressure Vessels and Piping 67.3(1996):257-261. |
入库方式： OAI收割
来源：力学研究所
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