Showing papers by "Vadim V. Silberschmidt published in 2003"
TL;DR: In this paper, a finite element (FE) model was proposed to analyze the microstructural processes at the cutting tool-chip interface for both conventional and ultrasonically assisted machining.
88 citations
TL;DR: In this paper, the structural response of entire specimens to cyclic thermal loading is investigated by dilatometry experiments and the influence of traction-free external surfaces on the microscopic deformation of ferrite and austenite is examined by measuring the surface roughness evolution by three-dimensional profile scans.
17 citations
TL;DR: In this article, the effect of the initial damage due to porosity on the processes of damage accumulation and failure is analyzed and a computational procedure for simulation of crack-damage interaction and crack propagation in porous alumina specimens at tension is suggested on the basis of a continuum-damage model, concept of local stress intensity factors and modification of a lattice scheme.
15 citations
01 Jan 2003
TL;DR: In this article, a lattice model consisting of two one-dimensional periodic chains with linear links between elements and nonlinear interaction between the chains is suggested to study nonlinear dynamics of a bi-layer.
Abstract: A lattice model consisting of two one-dimensional periodic chains with linear links between elements and nonlinear interaction between the chains is suggested to study nonlinear dynamics of a bi-layer. The properties of the model are discussed, and the influence of a delamination zone on the propagation of solitary waves is studied numerically.
9 citations
TL;DR: In this article, a study is performed on duplex steel containing nitrogen, including experimental and theoretical analyses at microscopic and macroscopic levels, and high-precision dilintometry and roughness measurements are accompanied by thorough numerical simulation.
Abstract: Ferritic-austenitic duplex steels demonstrate a complex deformational behavior even in the absence of mechanical loads. Purely thermal cycling in the temperature interval from 20°C to 900°C can cause either accumulation of inelastic strains (thermal ratchetting) or plastic shakedown, depending on microstructure morphology and/or the strength and thermal properties of the constituting phases. In this paper, a study is undertaken on duplex steel containing nitrogen, including experimental and theoretical analyses at microscopic and macroscopic levels. High-precision dilintometry and roughness measurements are accompanied by thorough numerical simulation. based on different microstructural models.
7 citations