%0 Journal Article %T Simulation of ultrasonic wave propagation in welds using ray-based methods %+ Département Imagerie et Simulation pour le Contrôle (DISC) %+ Laboratoire d'Imagerie Paramétrique (LIP) %+ Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris) %A Gardahaut, A. %A Jezzine, K. %A Cassereau, D. %A Leymarie, N. %Z Conference of 12th Anglo-French Physical Acoustics Conference, AFPAC 2013 ; Conference Date: 16 January 2013 Through 18 January 2013; Conference Code:104840 %< avec comité de lecture %@ 1742-6596 %J Journal of Physics: Conference Series %I IOP Science %V 498 %N 1 %8 2014 %D 2014 %R 10.1088/1742-6596/498/1/012008 %K Anisotropic media %K Anisotropy %K Ultrasonic propagation %K Ultrasonic waves %K Wave propagation %K Welds %K Austenitic %K Bimetallic welds %K Closed form %K Distribution of grains %K Inhomogeneous anisotropic medium %K Inhomogeneous property %K Propagation modeling %K Transport equation %K Finite element method %Z Physics [physics]Journal articles %X Austenitic or bimetallic welds are particularly difficult to control due to their anisotropic and inhomogeneous properties. In this paper, we present a ray-based method to simulate the propagation of ultrasonic waves in such structures, taking into account their internal properties. This method is applied on a smooth representation of the orientation of the grain in the weld. The propagation model consists in solving the eikonal and transport equations in an inhomogeneous anisotropic medium. Simulation results are presented and compared to finite elements for a distribution of grain orientation expressed in a closed-form. %G English %L cea-01820752 %U https://cea.hal.science/cea-01820752 %~ CEA %~ UPMC %~ ESPCI %~ CNRS %~ IFR58 %~ PARISTECH %~ LIB %~ DRT %~ PSL %~ UPMC_POLE_1 %~ LIST %~ SORBONNE-UNIVERSITE %~ SU-SCIENCES %~ ESPCI-PSL %~ SU-TI %~ ALLIANCE-SU %~ DIN