Article In: orcid, scopus, cienciavitae

Effect of weld shape imperfections on the structural hot-spot stress distribution

Ships and Offshore Structures

Gaspar B.; Garbatov Y.; Soares C.G. — 2011

Key information

Authors:

Gaspar B. (Bruno Constantino Beleza de Miranda Pereira Gaspar); Garbatov Y. (Yordan Garbatov); Soares C.G. (Carlos Guedes Soares)

Published in

02/11/2011

Abstract

This paper presents a probabilistic study of the effect of the weld shape imperfections on the structural hot-spot stress distribution along the weld toe using the Monte Carlo simulation and the finite element analysis method. A structural detail consisting of a plate strip with a transverse butt-welded joint and a tapered thickness step is used as a case study. The weld shape is modelled based on the weld profile parameters defined as random variables allowing the simulation of typical imperfections as a function of the imperfection level of welding. The analysis uses a linear finite element model built with the second-order solid elements. A finite element analysis program is used to calculate the stress distribution on the vicinity of the weld toe and a standard extrapolation procedure is used to obtain the structural hot-spot stresses. Different weld shape imperfections are generated and their effect on the hot-spot stresses is calculated afterwards. The notch effect of weld toe is not included in the analysis.

Publication details

Authors in the community:

Publication version

VoR - Version of Record

Title of the publication container

Ships and Offshore Structures

First page or article number

145

Last page

159

Volume

6

Issue

1-2

DOI

10.1080/17445302.2010.497052

Fields of Science and Technology (FOS)

other-engineering-and-technologies - Other engineering and technologies

Publication language (ISO code)

eng - English

Alternative identifier (URI)

http://dx.doi.org/10.1080/17445302.2010.497052

Rights type:

Restricted access