To read this content please select one of the options below:

Modeling of crack repair using piezoelectric material: XFEM approach

Ritesh Kumar (Department of Mechanical Engineering, Indian Institute of Technology, Patna, India)
Himanshu Pathak (School of Engineering, Indian Institute of Technology, Mandi, India)
Akhilendra Singh (Department of Mechanical Engineering, Indian Institute of Technology, Patna, India)
Mayank Tiwari (Department of Mechanical Engineering, Indian Institute of Technology, Patna, India)

Engineering Computations

ISSN: 0264-4401

Article publication date: 9 July 2020

Issue publication date: 8 February 2021

305

Abstract

Purpose

The purpose of this paper is to analyze the repair of a straight and angular crack in the structure using a piezoelectric material under thermo-mechanical loading by the extended finite element method (XFEM) approach. This provides a general and simple solution for the modeling of crack in the structure to analyze the repair.

Design/methodology/approach

The extended finite element method is used to model crack geometry. The crack surface is modeled by Heaviside enrichment function while the crack front is modeled by branch enrichment functions.

Findings

The effectiveness of the repair is measured in terms of stress intensity factor and J-integral. The critical voltage at which patch repair is most effective is evaluated and presented. Optimal patch shape, location of patch, adhesive thickness and adhesive modulus are obtained for effective repair under thermo-mechanical loading environment.

Originality/value

The presented numerical modeling and simulation by the XFEM approach are of great benefit to analyze crack repair in two-dimensional and three-dimensional structures using piezoelectric patch material under thermo-mechanical loading.

Keywords

Acknowledgements

The authors are thankful to Indian Institute of Technology, Patna for providing necessary software tool and support for this work. For the work done in IIT Mandi financial support received from Aeronautics Research and Development Board (DRDO), New Delhi, India through grant file no. 1051914 is gratefully acknowledged.

Citation

Kumar, R., Pathak, H., Singh, A. and Tiwari, M. (2021), "Modeling of crack repair using piezoelectric material: XFEM approach", Engineering Computations, Vol. 38 No. 2, pp. 586-617. https://doi.org/10.1108/EC-01-2020-0001

Publisher

:

Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

Related articles