Damage assessment on numerical modelling of rotating engine blades subjected to bird strike

Shahimi, Sharis-Shazzali and Abdullah, Nur Azam and Hrairi, Meftah and Ahmad, Meor iqram Meor (2020) Damage assessment on numerical modelling of rotating engine blades subjected to bird strike. In: International Symposium on Sustainable Aviation (ISSA 2020), 9th-11th November 2020, Serdang, Selangor. (Unpublished)

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Abstract

This paper presents a numerical modelling of rotating engine blades subjected to bird strike using SPH modelling. Several assumptions have been made to model the bird as a gelatine structure and geometry and material model is utilised in this study. The bird model itself is modelled as a Smoothed Particle Hydrodynamics (SPH) to accurately represent a real bird impact especially during take-off and landing. As such, the engine blades impacted by the bird is modelled as a tetrahedron elements in commercial software of LS-DYNA. The engine is rotating in the z-axis at 200 rad/s counter-clockwise. The material of the blade is modelled with a Johnson-Cook failure constants. The numerical framework is validated with previous literature. The computational results are presented as effective stresses and shows that the structural damage due to impact is significant such that the bird strike causes deflection that will damage the engine blades.

Item Type:	Conference or Workshop Item (Slide Presentation)
Additional Information:	8760/85610- Presented Online via Zoom)
Uncontrolled Keywords:	Bird strike, impact, rotating engine blades, SPH, structural damage
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ170 Mechanics applied to machinery. Dynamics
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. Nur Azam Abdullah
Date Deposited:	04 Dec 2020 11:37
Last Modified:	04 Dec 2020 11:38
URI:	http://irep.iium.edu.my/id/eprint/85610

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