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D.H. Choi

Bio: D.H. Choi is an academic researcher from Hanyang University. The author has contributed to research in topics: Crack growth resistance curve & Fatigue limit. The author has an hindex of 1, co-authored 1 publications receiving 18 citations.

Papers
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Journal ArticleDOI
D.H. Choi1, H.Y. Choi1
TL;DR: In this paper, the authors used the strain energy density factor approach to study the growth behavior of in-plane gusset welded joints and found that the fatigue life did not change as initial crack shape varied for a given initial crack length.

18 citations


Cited by
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TL;DR: In this article, the authors discussed the recent developments on such improvement techniques by considering two most commonly used fatigue strength improvement methods; high frequency mechanical impact (HFMI) treatment and tungsten inert gas (TIG) dressing.

36 citations

Journal ArticleDOI
TL;DR: In this article, a fatigue life prediction model under various load spectra, using the strain energy density factor approach and the plastic zone size near crack tip as main parameters, has been proposed.

36 citations

Journal ArticleDOI
TL;DR: Significant conclusions of existing experimental and theoretical researches and some suggestions on improving the fatigue assessment of welded joints, especially for the low-cycle fatigue with the occurrence of ratchetting are provided.
Abstract: Fatigue assessment of welded joint is still far from being completely solved now, since many influencing factors coexist and some important ones should be considered in the developed life prediction models reasonably. Thus, such influencing factors of welded joint fatigue are firstly summarized in this work; and then, the existing life prediction models are reviewed from two aspects, i.e., uniaxial and multiaxial ones; finally, significant conclusions of existing experimental and theoretical researches and some suggestions on improving the fatigue assessment of welded joints, especially for the low-cycle fatigue with the occurrence of ratchetting, are provided.

28 citations

Journal ArticleDOI
TL;DR: In this article, the fatigue life of joints with welded in-plane gusset plates is studied and a descriptive detail category to be used in assessment of existing structures is suggested.

23 citations

Journal ArticleDOI
TL;DR: In this article, the effects of dynamic loading on an offshore platform (FPSO; Floating, Production, Storage and Offloading) crane using a computational approach were investigated. And the authors established a procedure for systematic design and performance evaluation of an offshore vessel crane.

23 citations