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Study on the lateral torsional buckling of composite thin-walled beam

Zainal Abedin, Nur Diana and Syed Mohamed Ali, Jaffar and Aabid, Abdul and Aminanda, Yulfian (2023) Study on the lateral torsional buckling of composite thin-walled beam. In: 8th Brunei International Conference on Engineering and Technology 2021 (BICET 2021), 8th - 10th November 2021, Bandar Seri Begawan, Brunei Darussalam (Virtual).

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Aircraft structures are made of thin-walled structures as it provides higher stiffness to weight ratio compared to solid sections, but it is prone to buckling due to its low stiffness and slenderness of the individual element. One of the types of buckling that can impact the integrity of a thin-walled beam is lateral torsional buckling which is caused by simultaneous lateral bending and twisting of the cross-sections and it happens before the beam's material strength is reached. Therefore, the design of such thin-walled structure should ensure that the applied load on a structure does not surpass the critical buckling load. Moreover, modern aircraft structures are made of laminated composites to achieve higher specific stiffness and specific strength. Thus in this work, an analysis on the lateral torsional buckling of composite thin-walled beam is performed to evaluate the critical buckling load of an cantilever beam. ANSYS is used to find the critical buckling load of a composite thin-walled beam and the results obtained from numerical method are compared with previous analytical studies. Finally parametric study is conducted for different layup stacking sequence and dimensions of the beam to find the best layup for to achieve the highest critical buckling load.

Item Type: Conference or Workshop Item (Slide Presentation)
Uncontrolled Keywords: Buckling; Composite Structures; Thin walled strructure; ANSYS
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA349 Mechanics of engineering. Applied mechanics
T Technology > TJ Mechanical engineering and machinery > TJ227 Machine design and drawing
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Dr Mohamed Ali Jaffar Syed
Date Deposited: 16 Jan 2023 11:02
Last Modified: 05 Jul 2023 17:31
URI: http://irep.iium.edu.my/id/eprint/102907

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