Three-dimensional fracture mechanics analyses of surface cracks at welded joints in ship structure

S. Tanaka, H. Okada, S. Okazawa

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

1 Citation (Scopus)

Abstract

The purpose of the present study is to solve surface crack in welded joint of ship structure. To know the mechanical properties and the crack growth predictions of the surface crack are very important from the point of view of fatigue strength evaluation. In this study, shell-solid mixed analysis using Rigid Body Element 3 (RBE3) in MSC.Nastran and Virtual Crack Closure Method (VCCM) for quadratic tetrahedral finite elements adopted to evaluate Stress Intensity Factors (SIFs) in the welded joint of a ship. As a numerical example, the calculation of SIFs to the surface crack in welded joint of three cargo hold carrier are demonstrated. The accuracy and effectiveness of the proposed method are discussed.

Original languageEnglish
Title of host publicationAdvances in Marine Structures - Proceedings of the 3rd International Conference on Marine Structures, MARSTRUCT 2011
Pages335-340
Number of pages6
Publication statusPublished - 1 Dec 2011
Event3rd International Conference on Marine Structures, MARSTRUCT 2011 - Hamburg, Germany
Duration: 28 Mar 201130 Mar 2011

Publication series

NameAdvances in Marine Structures - Proceedings of the 3rd International Conference on Marine Structures, MARSTRUCT 2011

Conference

Conference3rd International Conference on Marine Structures, MARSTRUCT 2011
CountryGermany
CityHamburg
Period28/03/1130/03/11

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Tanaka, S., Okada, H., & Okazawa, S. (2011). Three-dimensional fracture mechanics analyses of surface cracks at welded joints in ship structure. In Advances in Marine Structures - Proceedings of the 3rd International Conference on Marine Structures, MARSTRUCT 2011 (pp. 335-340). (Advances in Marine Structures - Proceedings of the 3rd International Conference on Marine Structures, MARSTRUCT 2011).