Approximate approach to progressive collapse analysis of the monotonous thin-walled structures in vertical bending

Kitarović, Stanislav and Žanić, Vedran (2014) Approximate approach to progressive collapse analysis of the monotonous thin-walled structures in vertical bending. = Approximate approach to progressive collapse analysis of the monotonous thin-walled structures in vertical bending. Marine Structures, 39. pp. 255-286. ISSN 0951-8339. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2014). Točan broj autora: 2.

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Abstract

Present article proposes improved assessment of the ultimate bending capacity (ultimate bending moment), i.e. enhancement of the ultimate limit state evaluation in the concept design of the monotonous thin-walled structures predominantly subjected to vertical bending loads during their exploitation. An alternative progressive collapse analysis method is proposed, which incorporates direct consideration of various relevant distributed load effects and consequently enables more sophisticated evaluation of the ultimate bending capacity and more accurate and reliable identification of the critical cross section and its collapse sequence. Relevant aspects of the employed approximate model for the cross sectional warping due to vertical bending are considered and determination of the (longitudinal) warping displacements and strains, shear strains and stresses, as well as the corrected longitudinal strains is described. Influence of the (ultimate) shear capacity on the (ultimate) bending capacity is discussed and detailed description and critical overview of the proposed method is given. Finally, various aspects of the considered problem and accuracy of the proposed approach are discussed and demonstrated on example of the thin-walled box-girder, whereby detailed comparison of the results obtained by the proposed approach and nonlinear finite element method analyses is given. © 2014 Elsevier Ltd.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Bending capacity; Nonlinear finite element method; Progressive collapse analysis; Warping
Subjects: TECHNICAL SCIENCE > Shipbuilding
TECHNICAL SCIENCE > Mechanical Engineering
TECHNICAL SCIENCE > Aviation, rocket and space technology
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2014)
Date Deposited: 03 Jun 2015 08:28
Last Modified: 12 Dec 2017 14:29
URI: http://repozitorij.fsb.hr/id/eprint/4195

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