Modeling of crack repair using piezoelectric material: XFEM approach
ISSN: 0264-4401
Article publication date: 9 July 2020
Issue publication date: 8 February 2021
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