International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
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The effect of welding on the strength of aluminium stiffened plates subject to combined uniaxial compression and lateral pressure

  • Pedram, Masoud (Faculty of Marine Technology, Amirkabir University of Technology) ;
  • Khedmati, Mohammad Reza (Associate Professor, Faculty of Marine Technology, Amirkabir University of Technology)
  • Published : 2014.03.31
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Abstract

Nowadays aluminum stiffened plates are one of the major constituents of the marine structures, especially high-speed vessels. On one hand, these structures are subject to various forms of loading in the harsh sea environment, like hydrostatic lateral pressures and in-plane compression. On the other hand, fusion welding is often used to assemble those panels. The common marine aluminum alloys in the both 5,000 and 6,000 series, however, lose a remarkable portion of their load carrying capacity due to welding. This paper presents the results of sophisticated finite-element investigations considering both geometrical and mechanical imperfections. The tested models were those proposed by the ultimate strength committee of $15^{th}$ ISSC. The presented data illuminates the effects of welding on the strength of aluminum plates under above-mentioned load conditions.

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