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title

Degree of Bending in Tubular K-joints of Jacket Structures under OPB Loading

Credit to Download: 1 | Page Numbers 10 | Abstract Views: 287
Year: 2015
COI code: OICIRAN06_058
Paper Language: English

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Authors Degree of Bending in Tubular K-joints of Jacket Structures under OPB Loading

  Shadi Asoodeh - MSc Graduate, Faculty of Civil Engineering, University of Tabriz;
  Hamid Ahmadi - Assistant Professor, Faculty of Civil Engineering, University of Tabriz;
  Mohammad Ali Lotfollahi-Yaghin - Professor, Faculty of Civil Engineering, University of Tabriz;

Abstract:

In this paper, results of comprehensive finite element (FE) analyses carried out on 81 generated models of tubular Kjoints are presented. Results of FE models were verified against experimental data and parametric equations. The fatigue life of a tubular joint, which is commonly found in offshore industry, is not only dependent on the value of hotspot stress (HSS), but is also significantly influenced by the through-the-thickness stress distribution characterized by the degree of bending (DoB). Data extracted from FE analyses was used to study the effects of geometrical parameterson the DoB values in tubular K-joints subjected to two types of out-of-plane bending (OPB) loads. The determination of DoB values in a tubular joint is essential for improving the accuracy of fatigue life estimation using the stress-life (S–N) method and particularly for predicting the fatigue crack growth based on the fracture mechanics (FM) approach. Geometrically parametric investigation was followed by a set of nonlinear regression analyses to develop DoB parametric formulas for the fatigue analysis of K-joints under OPB loadings.

Keywords:

Tubular K-joint, Fatigue, Degree of bending (DoB), Out-of-plane bending (OPB), Parametric equation

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https://www.civilica.com/Paper-OICIRAN06-OICIRAN06_058.html
COI code: OICIRAN06_058

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Asoodeh, Shadi; Hamid Ahmadi & Mohammad Ali Lotfollahi-Yaghin, 2015, Degree of Bending in Tubular K-joints of Jacket Structures under OPB Loading, 6TH International Conference on Offshore Industries, تهران, انجمن مهندسي دريايي ايران, https://www.civilica.com/Paper-OICIRAN06-OICIRAN06_058.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Asoodeh, Shadi; Hamid Ahmadi & Mohammad Ali Lotfollahi-Yaghin, 2015)
Second and more: (Asoodeh; Ahmadi & Lotfollahi-Yaghin, 2015)
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Type: state university
Paper No.: 17425
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