Tests and simulation for damage deformation of web girders subjected to in-plane impact loads

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (9) : 149-154.

Liu Kun, Fu Jie, Wang Zhe, Wang Zili

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Abstract

Web girders of ship hull structures are often damaged due to in-plane impact load during ships collision and grounding accidents. Here, the specimens were scaled down and simplified from a typical web girder structure in ships. A set of unstiffened web girders and a set of longitudinally stiffened ones were designed. The quasi-static impact tests and finite element simulations for the two sets of web girders subjected to in-plane impact loads were conducted. Their deformation mechanisms were analyzed from two sides of impact loads and damage deformation. The results showed that the longitudinally stiffened web girders can improve greatly their structural resistance forces; two types of web girders have different wrinkle deformation modes in middle section of ribbed plates; the results can provide a basis for the determination of web girders’ deformation modes in subsequent analytical methods.

Key words

web girders / in-plane load / deformation mechanism / quasi-static impact test / numerical simulation

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Liu Kun, Fu Jie, Wang Zhe, Wang Zili. Tests and simulation for damage deformation of web girders subjected to in-plane impact loads[J]. Journal of Vibration and Shock, 2018, 37(9): 149-154

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