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Numerical Modelling and Design of Aluminium Alloy Angles under Uniform Compression

Georgantzia, E, Gkantou, M and Kamaris, GS (2021) Numerical Modelling and Design of Aluminium Alloy Angles under Uniform Compression. CivilEng, 2 (3). pp. 632-651. ISSN 2673-4109

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Research studies have been reported on aluminium alloy tubular and doubly symmetric open cross-sections, whilst studies on angle cross-sections remain limited. This paper presents a comprehensive numerical study on the response of aluminium alloy angle stub columns. Finite element models are developed following a series of modelling assumptions. Geometrically and materially nonlinear analyses with imperfections included are executed, and the obtained results are validated against experimental data available in the literature. Subsequently, a parametric study is carried out to investigate the local buckling behaviour of aluminium alloy angles. For this purpose, a broad range of cross-sectional aspect ratios, slenderness and two types of structural aluminium alloys are considered. Their effect on the cross-sectional behaviour and strength is discussed. Moreover, the numerically obtained ultimate strengths together with literature test data are utilised to assess the applicability of the European design standards, the American Aluminium Design Manual and the Continuous Strength Method to aluminium alloy angles. The suitability of the Direct Strength Method is also evaluated and a modified method is proposed to improve the accuracy of the strength predictions.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Civil Engineering & Built Environment
Publisher: MDPI
Date Deposited: 30 Sep 2021 10:59
Last Modified: 30 Sep 2021 11:00
DOI or Identification number: 10.3390/civileng2030035
URI: https://researchonline.ljmu.ac.uk/id/eprint/15579

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