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http://dx.doi.org/10.1016/j.ijnaoe.2018.03.001

A study on accumulated damage of steel wedges with dead-rise 10° due to slamming loads  

Seo, Byoungcheon (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Truong, Dac Dung (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Cho, Sangrai (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Kim, Dongju (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Park, Sookeun (Korea Institute of Industrial Technology)
Shin, Hyunkyoung (School of Naval Architecture and Ocean Engineering, University of Ulsan)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.10, no.4, 2018 , pp. 520-528 More about this Journal
Abstract
This paper presents the results of experimental investigation on the elastic-plastic response of steel unstiffened wedges with dead-rise $10^{\circ}$ subjected to repeated impulsive pressure loadings. Repeated drop tests were performed with both wedge thickness and drop height varied. The pressure and histories were recorded during the tests and the permanent deflections were measured after every drop. Using the recorded test result, the effects of flexibility of wedges and repetition have been investigated. From the pressure history obtained from the tests the characteristics of the impulses were identified. Numerical simulations of the tests were made using the measured pressure history and the permanent deflection predictions were compared with those of the experiments.
Keywords
Slamming phenomena; Impulsive pressure load; Wet free drop test; Dead-rise angle $10^{\circ}$ bodies; Accumulated damage;
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