Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)

Korean Society of Ocean Engineers (한국해양공학회)
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Estimation of Stress Intensity Factors for 3-Dimensional Surface Defects under Axial Tensile Loads Using the Finite Element Method

  • Jeon, Byung-Young (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kumar, Y.V. Satish (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kang, Sung-Won (Department of Naval Architecture and Ocean Engineering, Pusan National University)
  • Published : 2002.10.25
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Abstract

Pitting corrosion is a very common occurrence in marine structures. Therefore, the 3-D finite element analysis is carried out to determine the stress intensity factors at the pit depth and also at the surface of the pit. The pits are modeled as a part of sphere, based on the pit depth and the pit diameter as specified by the Ship Structural Committee. The pit depth and pit diameter are function of the percentage of pitting that the plate is subjected to. A dog-bone shaped specimen is subjected to different intensities of pitting and the stress intensity factors are determined under axial tensile loads.

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