Elastic local buckling strength analysis of stiffened aluminium plates with an emphasis on the initial deflections and welding residual stresses. (17th February 2019)

• Record Type: Journal Article
• Authors: Mohammadi, Milad; Khedmati, Mohammad Reza; Bahmyari, Ehsan
• Is Part Of: Ships and offshore structures. Volume 14:Number 2(2019)
• Page Start: 125
• Page End: 140
• Publication Date: 2019-02-17
• Subjects: Stiffened aluminium plates -- welding residual stresses -- initial deflections -- buckling strength; Ships -- Periodicals; Offshore structures -- Periodicals; Marine engineering -- Periodicals; Marine engineering -- Technological innovations -- Periodicals; Ocean engineering -- Periodicals; Ocean engineering -- Technological innovations -- Periodicals; 623.8
• DOI: 10.1080/17445302.2018.1482061
• Languages: English
• ISSNs: 1744-5302

Abstract

ABSTRACT: This study aims at estimation of the elastic local buckling strength of stiffened aluminium plates. First, the patterns of initial deflections and welding residual stresses are studied in details. Then, the energy-method-based Fujikubo–Yao's algorithm is so modified that the assessment of the elastic local buckling strength of the stiffened aluminium plates becomes possible focusing on the specific characteristics of welding residual stresses and initial deflections. The modified algorithm is implemented into a computer code in MATLAB environment, where it is verified against the FEM. Three groups of the stiffened aluminium plates are considered and used for some further parametric studies.