Effect of Delamination on Natural Frequencies of E-glass and S-glass Epoxy Composite Plates

Authors

  • P. K. Karsh Department of Mechanical Engineering, Parul Institute of Engineering & Technology, Parul University, Vadodara, India and Department of Mechanical Engineering, National Institute of Technology Silchar, India https://orcid.org/0000-0003-3522-3207
  • Bindi Thakkar Department of Mechanical Engineering, Parul Institute of Engineering & Technology, Parul University, Vadodara, India
  • R. R. Kumar Department of Mechanical Engineering, National Institute of Technology Silchar, India and School of Engineering, Jawaharlal Nehru University, New Delhi, India https://orcid.org/0000-0002-9725-727X
  • Abhijeet Kumar Department of Mechanical Engineering, National Institute of Technology Silchar, India
  • Sudip Dey Department of Mechanical Engineering, National Institute of Technology Silchar, India

DOI:

https://doi.org/10.13052/ejcm1779-7179.29466

Keywords:

Natural frequency, S-glass epoxy, E-glass epoxy, delamination, finite element method

Abstract

The delamination is one of the major modes of failure occurring in the laminated composite due to insufficient bonding between the layers. In this paper, the natural frequencies of delaminated S-glass and E-glass epoxy cantilever composite plates are presented by employing the finite element method (FEM) approach. The rotary inertia and transverse shear deformation are considered in the present study. The effect of parameters such as the location of delamination along the length, across the thickness, the percentage of delamination, and ply-orientation angle on first three natural frequencies of the cantilever plates are presented for S-glass and E-glass epoxy composites. The standard eigenvalue problem is solved to obtain the natural frequencies and corresponding mode shapes. First three mode shape of S-Glass and E-Glass epoxy laminated composites are portrayed corresponding to different ply angle of lamina.

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Author Biographies

P. K. Karsh, Department of Mechanical Engineering, Parul Institute of Engineering & Technology, Parul University, Vadodara, India and Department of Mechanical Engineering, National Institute of Technology Silchar, India

P. K. Karsh received the bachelor’s degree in Industrial and Production Engineering from Guru Ghasdas Central University, Bilaspur, India in 2012, the master’s degree in Industrial and Production Engineering from National Institute of Technology, Kurukshetra, India in 2016, and the philosophy of doctorate degree in Mechanical Engineering from National Institute of Technology Silchar, India in 2019, respectively. He is currently working as an Assistant Professor at the Department of Mechanical Engineering, Faculty of Engineering & Technology, Parul University, India. His research areas include, stochastic free vibration analysis, impact analysis and failure analysis of composite and functionally graded materials. He has been serving as a reviewer for many highly-respected journals.

Bindi Thakkar, Department of Mechanical Engineering, Parul Institute of Engineering & Technology, Parul University, Vadodara, India

Bindi Thakkar received the bachelor’s degree in Industrial and Mechanical Engineering from D. Y. Patil College of Engineering Pune, India in 2006, the master’s degree in CAD/CAM from Bharti Vidhyapeeth University, Pine India in 2009, and pursuing PhD in Design and Manufacturing from Parul University in 2020 respectively. She is currently working as an Head Of the Department and Assistant Professor at the Department of Mechanical Engineering, Faculty of Engineering & Technology, Diploma Studies, Parul University, India. She has 14 years of teaching experience at Parul University, since 2008. Her research areas include, Composites, stochastic free vibration analysis, impact analysis and failure analysis of composite and functionally graded materials.

R. R. Kumar, Department of Mechanical Engineering, National Institute of Technology Silchar, India and School of Engineering, Jawaharlal Nehru University, New Delhi, India

R. R. Kumar received the bachelor’s degree in Mechanical Engineering from Rajasthan Technical University, Kota, India in 2014, the master’s degree in Mechanical Engineering from Natioal Institute of Technology, Silchar, India in 2016, and the doctor of Philosophy degree in Mehcnaical Engineering from Natioal Institute of Technology Silchar, India in 2019, respectively. His research area includes: composite structure, stochastic analysis, surrogate modelling, impact analysis, vibration analysis and computational mechanics. He has been serving as a reviewer for several international journals.

Abhijeet Kumar, Department of Mechanical Engineering, National Institute of Technology Silchar, India

Abhijeet kumar has obtained his Bachelor’s degree in Mechanical Engineering from Hindustan College of science and technology, Uttar pradesh, India in 2014, The master’s degree in CAD/CAM & Automation from National Institute of technology, silchar, India in 2018. He has also worked as project intern in Industrial Engineering Department at IIT, Kharagpur, India. He is currently working as a junior manager, Automation & Robotics at Tatametaliks Ltd, India. His research interests include Automation, Robotics, digitalization, impact and failure analysis of composite and functionally graded materials.

Sudip Dey, Department of Mechanical Engineering, National Institute of Technology Silchar, India

Sudip Dey is a faculty in the Mechanical Engineering Department of National Institute of Technology Silchar, India. Previously, He was a Post-doctoral Researcher at Leibniz-Institut für Polymerforschung Dresden e. V., Germany, worked with Prof. Gert Heinrich (TU Dresden, Germany). Prior to that he was a Post-doctoral Researcher at College of Engineering, Swansea University, United Kingdom, worked with Prof. Sondipon Adhikari. He obtained Bachelor in Mechanical Engineering Degree from Jadavpur University, India. He received Ph.D. (Engg.) degree from Jadavpur University, India. His field of specialization is Applied Mechanics and Design. He has more than fifteen years of experience in research, teaching, industrial and professional activities. He is actively engaged in academics, teaching, research and industrial projects. His research interests include molecular dynamics, multi-scale and computational investigation of fibre-matrix interaction, uncertainty quantification, mechanics of composite and functionally graded structures, finite element analyses, digital twin with an emphasis on computational modelling.

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Published

2021-05-22

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Original Article