Ultimate strength of lightweight asymmetric panels

M. Elarbi, Paulo P. Silva, R. F. Martins

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The strength of forward bulkheads of lightweight fast craft subjected to slamming forces is of major concern, due to the importance to maintain the craft structural integrity and water tightness. In addition, most design is made upon codes and not much research could be found on ultimate strength of asymmetric reinforced panels. Therefore, the main purpose of this work is to determinate the remaining strength of forward bulkhead of lifesaving crafts used in the Portuguese National Maritime Authority. As lightweight fast craft as these are, the main construction materials are aluminum alloys, commonly used in marine applications. The craft’s structure is subject to different loads imposed by the operating conditions that subject the bulkhead to in plane compressive stresses.The bulkheadwas modelled "as designed" without imperfections, and "as built" with geometric imperfections and softening of aluminum alloys induced by welding. The reinforced panel ultimate strength was numerically analyzed under in plane compression. Comparison and discussion of results between the "as designed" and "as built" panel is made and conclusions are drawn at the end.

Original languageEnglish
Title of host publicationProceedings of 3rd International Conference on Maritime Technology and Engineering, MARTECH 2016
PublisherCRC Press/Balkema
Pages451-458
Number of pages8
Volume1
ISBN (Print)978-113803000-8
Publication statusPublished - Jul 2016
Event3rd International Conference on Maritime Technology and Engineering, MARTECH 2016 - Lisbon, Portugal
Duration: 4 Jul 20166 Jul 2016

Conference

Conference3rd International Conference on Maritime Technology and Engineering, MARTECH 2016
CountryPortugal
CityLisbon
Period4/07/166/07/16

Keywords

  • Aluminum
  • Aluminum alloys
  • Bulkheads (retaining walls)
  • Marine applications
  • Reinforcement
  • Ultimate strength
  • Water craft

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