Discontinuous Galerkin method applied to photothermal inspection of cracked materials
- Omella, Angel Javier 1
- Celorrio, Ricardo
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1
Universidad del País Vasco/Euskal Herriko Unibertsitatea
info
Universidad del País Vasco/Euskal Herriko Unibertsitatea
Lejona, España
Publisher: Prensas de la Universidad de Zaragoza
ISBN: 978-84-16515-28-8
Year of publication: 2015
Pages: 105-114
Type: Conference paper
Abstract
We present a generalization of Baumann-Oden-type Discontinuous Galerkin Finite Element Method (DGFEM) to model the thermal wave scattering in lock-in thermographic and vibrothermographic inspection of cracked samples of homogeneous materials. The modelization is based on considering thin cracks as interfaces characterized by its thermal contact resistance.We check numerically the order of convergence of the method for the 1D case. We present a 3D heat flow numerical simulation of a cracked gear that has been implemented, by using a collection of scientific open-source software as an application example