Experimental and Numerical Correlation of Impact of Spherical Projectile for Damage Analysis of Aero Engine Component

  • Anuradha Nayak Majila Gas Turbine Research Establishment, Bengaluru
  • Rajeev Jain Gas Turbine Research Establishment, Bengaluru
  • Chandru Fernando D. Gas Turbine Research Establishment, Bengaluru
  • S. Ramachandra Gas Turbine Research Establishment, Bengaluru
DOI: https://doi.org/10.14429/dsj.66.9130
Keywords: Domestic object damage, metallographic, FEM, LS-DYNA, spherical projectile

Abstract

Studies the impact response of flat Titanium alloy plate against spherical projectile for damage analysis of aero engine components using experimental and finite element techniques. Compressed gas gun has been used to impart speed to spherical projectile at various impact velocities for damage studies. Crater dimensions (diameter and depth) obtained due to impact have been compared with finite element results using commercially available explicit finite element method code LS-DYNA. Strain hardening, high strain rate and thermal softening effect along with damage parameters have been considered using modified Johnson-Cook material model of LS-DYNA. Metallographic analysis has been performed on the indented specimen. This analysis is useful to study failure analysis of gas turbine engine components subjected to domestic object damage of gas turbine engine. 

 

Author Biographies

Anuradha Nayak Majila, Gas Turbine Research Establishment, Bengaluru

Ms Anuradha Nayak Majila received her B.Tech (Metallurgical Engineering). Presently working as Scientist ‘E’ at Gas Turbine Research Establishment, Bengaluru. I have worked for several projects for ADA, CABS, HAL, NAL, Delhi-Metro rail and Honey well Tech Ltd. The area of interest include: High strain rate testing, impact testing, foreign object damage evaluation of aero engine and aircraft components.

Rajeev Jain, Gas Turbine Research Establishment, Bengaluru

Dr Rajeev Jain received his MSc (Engg) and PhD from Indian Institute of Science, Bengaluru. Presently working as Scientist Sc ‘G’ and heading the group of impact mechanics at Gas Turbine Research Establishment, Bengaluru. He worked in design of safety critical gas turbine engine components. He has a vast experience in field of non-linear finite element modeling pertaining to impact, contact, composite and wave mechanics.

Chandru Fernando D., Gas Turbine Research Establishment, Bengaluru

Mr Chandru Fernando D. completing his BE (Metallurgical Engineering). He is presently working as Scientist ‘E’ at Gas Turbine Research Establishment, Bengaluru. He is working in the area of material testing, data analysis and evaluation of aero engine materials. He is a life member of AeSI, IIM.

S. Ramachandra, Gas Turbine Research Establishment, Bengaluru

Dr S. Ramachandra currently working as Scientist G and Technical Drector of Systems Engineering Group at Gas Turbine Research Establishment, Bengaluru. He worked in the field of Structural analysis and testing of aero engine components. His other fields of activities include engine casing containment testing and analysis, design and development of advanced high temperature polymer matrix composite and ceramic matrix composite components for aero engines.

Published
2016-03-23
How to Cite
Majila, A., Jain, R., Fernando D., C., & Ramachandra, S. (2016). Experimental and Numerical Correlation of Impact of Spherical Projectile for Damage Analysis of Aero Engine Component. Defence Science Journal, 66(2), 193-199. https://doi.org/10.14429/dsj.66.9130
Issue
Vol 66 No 2
Section
Materials Science & Metallurgy
Copyright (c) 2016 Defence Science Journal

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