Abstract
Cold-rolled aluminium alloy sections are considered as the new products in the market and have been illustrated their cost-effectiveness in comparison with the traditional extruded aluminium sections. These sections in the form of thin-walled sections significantly contain geometric imperfections due to manufacturing and transportation. These imperfections were found to have noticeable impacts on the behaviour and strength of cold-formed members and have been considered in research studies. They were incorporated into simulation models to evaluate their effects on the member capacities that were the base for the selection of the detrimental cases for the design. This paper, therefore, investigates the impacts of geometric imperfections on the global buckling strengths of cold-rolled aluminium alloy columns, and proposes the detrimental simulation models for the development of parametric studies to extend the strength data in the design. Also, this influence of geometric imperfection can be accounted for in the design by proposing a coefficient in reliability analysis with the application of the load and resistance factor design (LRFD) method according to the American Aluminum Specification.
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Pham, N.H. (2023). Influence of Geometric Imperfections on Global Buckling Strengths of Cold-Rolled Aluminium Alloy Channel Columns. In: Mo, J.P. (eds) Proceedings of the 8th International Conference on Mechanical, Automotive and Materials Engineering. CMAME 2022. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-3672-4_14
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DOI: https://doi.org/10.1007/978-981-99-3672-4_14
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