© 2018 JETIR November 2018, Volume 5, Issue 11 www.jetir.org (ISSN-2349-5162) JETIRDR06082 Journal of Emerging Technologies and Innovative Research (JETIR) www.jetir.org 538 Numerical Simulation of Centre Crack in Automotive Coatings Using Element Free Galerkin Method Mahendra Chilakala 1 and Sahil Garg 2 1 Department of Automobile Engineering, School of Mechanical Engineering, Lovely Professional University, Phagwara-144411, Punjab-India, 2 School of Mechanical Engineering, Lovely Professional University, Phagwara-144411, Punjab-India. Abstract: The present chapter aims at providing a generalized model for studying crack in layered materials used for automobile coatings. This study has been performed using EFGM. The results and plots obtained are compared and validated with standard FEM. EFGM significantly reduces the computational time and engineering effort compared to FEM. J-Integral is used to calculate SIFs and a novel Jump Function approach is used to detect the change in material properties in coatings. The crack is provided at centre of substrate and its variations with respect to SIFs are plotted. Keywords: Element free Galerkin Method, Fracture Analysis, Bi-Layered Materials, Finite Element Analysis, Horizontal Crack, Inclined Crack. 1. Introduction: Materials has been become the part of human life since the very existence and also there has been various developments took place in metal industry. The need of same metal being used for a variety of applications lead to the improvement of the mechanical and thermal properties which includes strength, resistance to corrosion and high temperatures etc[1],. Then the researchers show some attention to develop layered materials which possess the potentiality of being used for various applications mostly in mechanical and aerospace industries[2]. Layered materials consists a substrate coating of any other material on the substrate material, for example Aluminium coating on steel, in which aluminium provides the corrosion resistance in the top of substrate steel material[3]. Similarly, there are varieties of substrate available in the market which can be applied as a coating on different materials using various processes[4]. Though, the layered materials provide required mechanical and thermal properties for their application areas, also there are some challenges facing by these materials[5]. Crack is one of the major problems which happen often on any material surface may leads to failure[6]. Almost all the mechanical structures contain micro and macro level cracks and propagates or leads to form new cracks in real working conditions[7][8]. So, analysis of cracks is therefore very important.