Development of Convolution Quadrature Time-Domain Boundary Element Method for Fluid-Elastic Half Space and Its Application to Air-Coupled Ultrasonic Simulation

Finite Element Modeling and Multiphysics Simulation of Air Coupled Ultrasonic with Time Domain Analysis

This paper describes the finite element modelling of air coupled ultrasonic using multiphysics approach. In the model, the two different physics domains were coupled to each other at the interface by using proper boundary conditions for each domain. The simulation result shows that, ultrasonic waves generated in plate structure are leaked to the air medium by creating the pressure wave. The tim...

Elastic Wave Propagation at Imperfect Boundary of Micropolar Elastic Solid and Fluid Saturated Porous Solid Half-Space

This paper deals with the reflection and transmission of elastic waves from imperfect interface separating a micropolar elastic solid half-space and a fluid saturated porous solid half-space. Longitudinal and transverse waves impinge obliquely at the interface. Amplitude ratios of various reflected and transmitted waves are obtained and computed numerically for a specific model and results obta...

construction and validation of translation metacognitive strategy questionnaire and its application to translation quality

like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...

Sparse Convolution Quadrature for Time Domain Boundary Integral Formulations of the Wave Equation

Many important physical applications are governed by the wave equation. The formulation as time domain boundary integral equations involves retarded potentials. For the numerical solution of this problem we employ the convolution quadrature method for the discretization in time and the Galerkin boundary element method for the space discretization. We introduce a simple a-priori cutoff strategy ...

Application of the Boundary Element Method to Three-Dimensional Dynamic Solution of Fluid-Saturated Porous Media Problems