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

Saleemsab Doddamani; Chao Wang; M. Sheik Mohamed Jinnah; Md. Arefin Kowser

doi:10.3221/IGF-ESIS.58.14

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

Authors

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

DOI:

https://doi.org/10.3221/IGF-ESIS.58.14

Keywords:

Metal matrix composite, Al-graphite composite, Simulations, Fracture toughness, Rotor blade

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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Author Biography

Saleemsab Doddamani, Head of the Department, Jain Polytechnic, Davangere, Karnataka-577005, India

Mechanical Engieering, Head of the Department.

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Published

25-09-2021

Issue

Vol. 15 No. 58 (2021): October 2021

Section

Failure Analysis, Case Studies and Forensic Engineering

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Fracture analysis of AA6061-graphite composite for the application of helicopter rotor blade. (2021). Frattura Ed Integrità Strutturale, 15(58), 191-201. https://doi.org/10.3221/IGF-ESIS.58.14