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Low-Velocity Impact Damage Due to Debris Particles Impacted on Titanium Alloy (Ti–6Al–4V) Gas Turbine Blades

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Abstract

Millimeter-sized objects like engine components, sand particles, or debris impact on the gas turbine blades very frequently during operation of a gas turbine. This is one of the major concerns in the aviation industry, and various studies and research have been done throughout the decades in preventing the damage. Such impacts may not affect or damage the gas turbine blades but the frequent impact leads to the fatigue of the gas turbine blades and eventually to failure. The low-velocity impact analysis of gas turbine rotor blades in aviation has been presented in this study. Impact analysis of spherical steel balls as impactors of different masses on titanium-alloyed rotor blades is recorded and the result data are collected. To verify the present method, the numerical data are also compared to open literature. The analysis has been done using ANSYS software considering factors like meshing sizes, impactor size, and velocity.

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Source: John F. Welch Technology Centre, Bangalore

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Acknowledgements

The authors acknowledges Applied Mechanics laboratory, Mechanical Engineering Dept, Jadavpur, University and Applied mechanics Dept, IIEST, Shibpur for providing the research facility. The authors also acknowledge John F. Welch Technology Centre, Bangalore for the gas turbine blade image.

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The author(s) received no financial support for this research work.

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Authors and Affiliations

  1. Aerospace Engineering and Applied Mechanics Department, Indian Institute of Engineering Science and Technology-Shibpur, Howrah, 711103, India

    Arnab Mukherjee, Fayek Nawaz & Apurba Das

  2. Department of Mechanical Engineering, Jadavpur University, Kolkata, 700032, India

    Amit Karmakar

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  1. Arnab Mukherjee
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Correspondence to Apurba Das.

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Mukherjee, A., Nawaz, F., Das, A. et al. Low-Velocity Impact Damage Due to Debris Particles Impacted on Titanium Alloy (Ti–6Al–4V) Gas Turbine Blades. J. Inst. Eng. India Ser. D 104, 291–300 (2023). https://doi.org/10.1007/s40033-022-00372-8

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