Enriched numerical techniques: implementation and applications

Abstract

Thermal conductive thin films are found to be applicable in the field of thermal absorption, and their advancements have been reported for better thermal stability and efficiency. Since the thermal stability and efficiency depend on the coating resistance to surface wear, it means the surface needs to be analyzed for such stresses. The common wear conditions of a thermal absorptive coating occur when the thermal stresses induced into the coating material make the coating surface to crack and fracture in extremely hot environment. The fractures and cracks can be modeled using numerical modeling, which affirms how the discontinuities are propagating on the coating surface. Advancements in the field of numerical modeling have been proposed, so that the surface fractures can be modeled more accurately and precisely. For precise results, nonconformal and representation of accurate geometries are required, which can easily be achieved by using nonuniform rational B-spline (NURBS)-based extended isogeometric analysis (XIGA). This publication reports the application of NURBS-based XIGA to analyze the thermal absorber coatings subjected to stress–strain and heat transfer conditions.