Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade

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Published Sep 25, 2021
DOI https://doi.org/10.3221/IGF-ESIS.58.14

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Saleemsab Doddamani
Head of the Department, Jain Polytechnic, Davangere, Karnataka-577005, India
http://orcid.org/0000-0002-8498-1488 Chao Wang
Department of Mechanical Engineering, The University of Texas, Dallas, USA,
M. Sheik Mohamed Jinnah
Department of Mechanical Engineering, Shinas College of Technoogy, Muscat, Oman
https://orcid.org/0000-0002-8499-5011 Md. Arefin Kowser
Department of Mechanical Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh

Abstract

The main objective of the work is to study the fracture behavior of AA6061-graphite material using both experimental technique and finite element simulation by considering helicopter rotor blade as a case study. From the case study, it has been observed that the helicopter rotor blade, made of AA6061, has been failed at the threaded portion of the hole. Experimental fracture toughness is carried out using the compact tension specimens as per ASTM standard testing procedure. Modeling of compact tension specimens and the threaded portion of the bolt hole was utilized to analyze the fracture toughness using a simulation tool. From the results and the comparison, it is recommended to use AA6061-9wt% graphite material as a replacement of AA6061 in the application of main rotor blades of the helicopter.

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    Issue
    Vol. 15 No. 58 (2021): October 2021
    Section
    Failure Analysis, Case Studies and Forensic Engineering

    How to Cite

    Doddamani, S. (2021) “Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade”, Frattura ed Integrità Strutturale, 15(58), pp. 191–201. doi: 10.3221/IGF-ESIS.58.14.
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