[PDF] Top 20 Simulations of SH wave scattering due to cracks by the 2 D finite difference method

... simulated SH wave scattering by 2-D cracks and experimentally determined the scatter- ing attenuation and dispersion, thus validating the Foldy ap- proximation theory as long as ... See full document

... simulated SH wave scattering due to traction-free, infinitesimally thin cracks by the 2-D ...expressed cracks in a staggered grid just by arraying grid points with ... See full document

... Bi-CGSTAB method to solve the problem. Figure 1, Figures 2 and 3 are the simulation results for wave number 20, 30 and 40 respec- ...the wave has more vibration as k ... See full document

... the Finite-Difference Frequency-Domain (FDFD) method, which uses a central finite differencing scheme for solving Maxwell’s equations for ... See full document

... long simulations times may be reduced by using an implicit time marching scheme for the solution of Maxwell’s equations that is not sensitive to the Courant limit ...dynamic wave propagation phenomena or ... See full document

... (20) where υ i defines the speed of the light in the medium of cell V i . It is generally more restrictive than that for the FDTD method. A local time step scheme [16] is used to enhance the efficiency of the ... See full document

... FDTD simulations is that they are drastically data intensive and need a tremendous amount of floating-point calculations which necessitate computational ...FDTD simulations require fine meshes for both ... See full document

... numerical simulations of photoinductive imaging (PI) method have been performed using the finite element method (FEM) with the 2D transient to characterize corner cracks at the edge of a bolt ... See full document

... Dispersive behaviour of guided waves in laminated plates of finite thickness has been studied extensively in recent years. It has been shown that dispersive modal propagation behavior is strongly influenced by the ... See full document

... three-dimensional finite difference method seismic wave propagation simulations using detailed heterogeneous crustal ...Lg wave propagation from continental Asia to Kyushu ... See full document

... in 2 dimensions, the 2-D and 3-D simulations should yield identical ...the 2-D model - vital if we are to progress onto modelling triply pe- riodic structures as ... See full document

... the SH guided wave mode dispersion curves of figure ...an SH wave and thus a large wave amplitude should be ...generate SH modes at the specific points on the dispersion curve ... See full document

... The accuracy of the method also depends upon the mesh, although a finer mesh across the whole domain may yield accurate results but at the cost of increased computing time. A finer mesh can be used in areas, where ... See full document

... structures. Composite materials display a wide variety of failure mechanisms as a result of their complex structure and manufacturing processes, which include fiber failure, matrix cracking, buckling and delamination ... See full document

... Thompson Ames Laboratory, USDOE Iowa State University Ames, IA 50011 ABSTRACT Using a two dimensional finite element code, the response of a U-core eddy current probe was computed for a [r] ... See full document

... Solutions are obtained using the Lax-Wendroff method, the minmod method and the proposed methods. We will solve for 𝑇 = 2. On the graphs, the red thick line represents the exact solution while the ... See full document

... 9. Glowinski, R., Lee, C.H. and Lions, J.L. A numerical approach to the exact boundary controllability of the wave equation (I) Dirichlet controls: description of the numerical methods, Japan J. Appl. Math., 7 ... See full document

... CFD simulations, since most industrial applications of CFD involve highly complicated geometric structures and passages which cannot be easily or accurately represented by a structured grid ...FD method, ... See full document

... bistatic scattering from a stake of two one- dimensional Gaussian rough surface, a hybrid algorithm combining the method of moments with the Kirchhoff Approximation is ...degree due to the fact that ... See full document

... In this paper, one type of discretization methods is introduced and extended for numerically solving a simplified 2-D unsteady quasilinear biharmonic problem. This method is an implicit method ... See full document