Effect of Cut-Out Shape on the Stresses in Aircraft Wing Ribs under Aerodynamic Load

Jaffar Syed Mohamed Ali; Wan Muhammad Hafizuddin W. Embong; Abdul Aabid

doi:10.37934/cfdl.13.11.8794

Authors

Jaffar Syed Mohamed Ali Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100, Selangor, Malaysia
Wan Muhammad Hafizuddin W. Embong Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100, Selangor, Malaysia
Abdul Aabid Department of Engineering Management, College of Engineering, Prince Sultan University, PO Box 66833, Riyadh 11586, Saudi Arabia

DOI:

https://doi.org/10.37934/cfdl.13.11.8794

Keywords:

Simulation, Stress Analysis, Wing ribs, Cut-outs, ANSYS

Abstract

Ribs in aircraft wings maintain the airfoil shape of the wing under aerodynamic loads and also support the resulting bending and shear loads that act on the wing. Aircrafts are designed for least weight and hence the wings are made of hollow torsion box and the ribs are designed with cut-outs to reduce the weight of the aircraft structure. These cut-outs on the ribs will lead to higher stresses and stress concentration that can lead to failure of the aircraft structures. The stresses depend on the shape of the cut-outs in the ribs and thus in the present work, the commercial software ANSYS was used to evaluate the stresses on the ribs with different shapes of cut-outs. Four different shapes of cut-out were considered to study the effect of cut-out shape on the stresses in the ribs. It was found that the best shape for the cut-outs on the ribs of wings to reduce weight is elliptical.

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Author Biographies

Jaffar Syed Mohamed Ali, Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100, Selangor, Malaysia

jaffar@iium.edu.my

Wan Muhammad Hafizuddin W. Embong, Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 53100, Selangor, Malaysia

hafizuddinembong@gmail.com

Abdul Aabid, Department of Engineering Management, College of Engineering, Prince Sultan University, PO Box 66833, Riyadh 11586, Saudi Arabia

aabidhussain.ae@gmail.com

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