In this work, we deal with the 1D compressible fluid coupled with elastic solid in an Eulerian-Lagrangian system. To facilitate the analysis, the Naviers equation for elastic solid is cast into a 2×2 system similar to the Euler equation but in Lagrangian coordinate. The modified Ghost Fluid Method is employed to treat the fluid-elastic solid coupling, where an Eulerian-Lagrangian Riemann proble...

A partially-wetting liquid can deform the underlying elastic substrate upon which it rests. This situation requires the development of theoretical models to describe the wetting forces imparted by the drop onto the solid substrate, particularly those at the contact-line. We construct a general solution using a displacement potential function for the elastic deformations within a finite elastic ...

Various types of waves are produced when a harmonic force is applied to a semi-infinite half space elastic medium. In particular, surface waves are perturbations with transverse and longitudinal components of displacement that propagate in the boundary region at the surface of the elastic solid. Shear wave speed estimation is the standard for characterizing elastic properties of tissue in elast...

Numerical modeling of machining processes is of significance in the parametric analysis and optimization of their performance. In this paper, a finite element-based model of abrasive waterjet (AWJ) cutting of a ductile material is presented with the help of an explicit, nonlinear finite element method. In this model, both solid-solid interaction and fluid-structure interaction are considered. T...

Two methods are proposed to evaluate the second-order elastic constants of quantum mechanically treated solids. One method is based on path-integral simulations in the NVT ensemble using an estimator for elastic constants Ci j . The other method is based on simulations in the NpT ensemble exploiting the relationship between strain fluctuations and elastic constants. The strengths and weaknesses...

Monte Carlo simulation is used to study the elastic properties of the classical hard sphere solid. The elastic constants C 11 ,C 12 , and C 44 are computed for the fcc lattice structure at the melting density. Poisson's ratio is computed and is shown to be positive. Thesèexact' results are compared with those of simple models of the hard sphere solid.

This paper describes dexterous multi-fingered manipulation using a novel fingertip equipped with a soft elastic cover and a solid nail. The soft elastic cover of the fingertip enables changing friction coefficient at the contact with an object. The solid nail enables detecting a very small step of sub-millimeter on a smooth surface.

The canonical problem of the diffraction of a transient elastic plane wave by a semiinfinite fluid-filled crack in an unbounded, homogeneous, isotropic, dispersive solid is considered. The dispersion properties of the solid (and its associated loss mechanism) are accounted for by general, global relaxation functions that meet the causality criterion and encompass the influence of frictional for...

Non-planar solid-fluid-solid interfaces under stress are very common in many industrial and natural materials. For example, in the Earth’s crust, many rough and wavy interfaces can be observed in rocks in a wide range of spatial scales, from undulate grain boundaries at the micrometer scale, to stylolite dissolution planes at the meter scale. It is proposed here that these initially flat solid-...