English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This paper investigated the elastic Lateral-Torsional Buckling (LTB) loads of circular fixed ends arches of 6061-T6 aluminium alloy channels subjected to transverse point load at the shear center. Finite Element Analysis (FEA) software package known as Abaqus was used to investigate a total of 55 models from three different channel profiles. Out of these arches, 33 arches were developed at a constant span length. While, the other 22 arches were modeled at constant slender ratio using 11 distinct included angles. The prebuckling FEA results were compared with those generated by existing analytical solutions for validation. The results generated by these two aforementioned methods showed good agreement. Further analyses of FEA results established that the crosssection area, slender ratio, and included angles of the arches had significant impact on both the LTB loads and their behaviours as in the reviewed literature. Unlike in the prebuckling analyses where the load magnitude had negliglible effects, it was revealed that the magnitude of the overall buckling load depended on the torsion constant, for arches with constant span length . For included angles with high resistance to LTB, the following order of suitability was established for arches developed at constant span length 50° ≤ 2α ≤ 90°, 2α < 50° and 90° < 2α ≤ 180°. Whereas, the order of preference for arches developed at constant slender ratio for the same included angles was 90° < 2α ≤ 180°, 50° ≤ 2α ≤ 90°and 2α < 50°. Keyword: circular fixed arches, elastic lateral-torsional buckling, shear center, concentrated load, prebuckling

Elastic Lateral-Torsional Buckling Load on Circular Fixed Channels Arches Under Transverse Point Load