Knowledge Management System of Institue of Mechanics, CAS
| Notch sensitivity of circular rings subjected to impact loading | |
Zhao YP(赵亚溥) ; Fang J; Yu TX(余同希); Zhao, YP (reprint author), CHINESE ACAD SCI,INST MECH,LNM,BEIJING 100080,PEOPLES R CHINA.
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| Source Publication | International Journal of Pressure Vessels and Piping
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| 1996 | |
| Volume | 67Issue:3Pages:257-261 |
| ISSN | 0308-0161 |
| Abstract | '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. |
| Keyword | Lateral Compression Tubes |
| DOI | 10.1016/0308-0161(95)00023-2 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:A1996UF69500004 |
| WOS Keyword | LATERAL COMPRESSION ; TUBES |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Multidisciplinary ; Engineering, Mechanical |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/39142 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Zhao, YP (reprint author), CHINESE ACAD SCI,INST MECH,LNM,BEIJING 100080,PEOPLES R CHINA. |
| Recommended Citation GB/T 7714 | Zhao YP,Fang J,Yu TX,et al. 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,&Zhao, YP .(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. |
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