Abstract
An experimental and numerical investigation is carried out to demonstrate the stiffening efficiency of applying predefined sinusoidal waves to steel plate elements. The experimental program consists of 5 tensile coupon tests, to obtain the material properties, and 15 square hollow section (SHS) stub column tests with and without stiffening patterns, to quantify the buckling capacity enhancement. The specimens in the current study are made of 316L stainless steel and produced by powder bed fusion (PBF) technique. A numerical study followed, investigating a wider range of wave patterns and geometric dimensions. The experimental and numerical results show that the proposed stiffening method can effectively increase the buckling load compared to their flat plate counterparts, and is less sensitive to plate imperfections than traditional stiffening methods such as welding and cold-forming stiffeners, assuming the same material consumption. Based on the results of numerical parametric study, the optimized wave patterns are established and corresponding design equations have been proposed.
| Original language | English |
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| Publication status | Published - 1 Dec 2023 |
| Event | Ninth International Conference on Thin-Walled Structures - University of Sydney, Sydney, Australia Duration: 29 Nov 2023 → 1 Dec 2023 https://www.ictws2023.org.au/#:~:text=ICTWS2023%20is%20an%20in%20person,close%20proximity%20to%20Sydney%20CBD. |
Conference
| Conference | Ninth International Conference on Thin-Walled Structures |
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| Abbreviated title | ICTWS2023 |
| Country/Territory | Australia |
| City | Sydney |
| Period | 29/11/23 → 1/12/23 |
| Internet address |