原文传递
Experimental and Numerical Investigation of Bare and Strengthened Wide-Flange Sections Subject to Near-Field Blast Loading
| 题名： | Experimental and Numerical Investigation of Bare and Strengthened Wide-Flange Sections Subject to Near-Field Blast Loading |
| 正文语种： | eng |
| 作者： | Grisaro, Hezi Y.;Packer, Jeffrey A.;Seica, Michael, V |
| 作者单位： | Technion Israel Inst Technol Fac Civil & Environm Engn IL-32000 Haifa Israel;Univ Toronto Dept Civil & Mineral Engn 35 St George St Toronto ON M5S 1A4 Canada;Univ Toronto Dept Civil & Mineral Engn 35 St George St Toronto ON M5S 1A4 Canada|Explore Secur Ltd 3-4 Talina Ctr Bagleys Ln London SW6 2BW England |
| 关键词： | Blast tests;Wide-flange sections;Blast load;Near-field detonation;Hardening;Numerical simulation |
| 摘要： | When a wide-flange section is exposed to close-in detonation, local and global deformation modes are developed due to a complex nonuniform pressure environment. The local deformation includes local distortion and rotation of the flanges, as well as deformation of the web, or even breaching near the web/flange junction. Experimental studies are presented to investigate the response of wide-flange sections to close-in detonations with and without stiffener plates and loaded about their weak and strong bending axes. The effectiveness of the stiffeners in mitigating damage is studied, and although they do have a positive effect, in some cases, the stiffeners do not contribute to the member resistance. Numerical models, validated against the test results, are used for a parametric study on the effect of the angle of incidence between the charge and the section, and the web-to-flange thickness ratio. It is found that a member needs to be analyzed for loading directions between the weak and strong bending axes to account for the maximum possible flange distortion. The thickness of the flange is irrelevant for the local web deformation but important for the global behavior of the member. |
| 出版年： | 2021 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 147 |
| 期： | 9 |
相关文献
- Blast-Wave Clearing for Detonations of High Explosives
- Section Characterization of Wide-Flange Steel Sections Subjected to Combined Thermal and Mechanical Loading
- Experimental and Numerical Investigation of Cladding–Girt Systems Subjected to Blast Loading
- Behavior of Steel Rectangular Hollow Sections Subject to Blast Loading
- Experimental and Numerical Investigation of Blast Wave Attenuation by Using Barriers in Different Configurations and Shapes
- Experimental and Numerical Investigations of S690 High-Strength Steel Welded I-Sections under Combined Compression and Bending
检索历史
应用推荐
