The Experts below are selected from a list of 14136 Experts worldwide ranked by ideXlab platform
M.m. Ferraro - One of the best experts on this subject based on the ideXlab platform.
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Influence of in-Plane Stress State on sliding contact fatigue damage of metallic surfaces
Tribology International, 2017Co-Authors: J.j. Ryu, B.h. Chua, Pranav Shrotriya, M.m. FerraroAbstract:Abstract Current study investigates Stress-dependent fatigue wear mechanism of pure copper surfaces in ambient environment. The Stressed copper surface by a unique bending fixture is subjected to sliding motion of the atomic force microscope probe. Wear volumes are determined at different contact loads with variable bending Stresses. Experimental results indicate that the surface damage is accelerated under compressive Stresses and suppressed under tensile Stresses with the similar contact pressures. A numerical model of fatigue Stress intensity factor at the subsurface crack is proposed to explain the Stress-dependent fatigue damage mechanism. The numerical study agreed compressive surface Stress accelerates fatigue wear. Consequently, experimental and numerical studies on dry sliding contact damage concludes a significant dependence of the surface Stress on ductile metal surface.
O.v. Gomonova - One of the best experts on this subject based on the ideXlab platform.
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Construction of elastoplastic boundary in problem of tension of a plate weakened by holes
International Journal of Non-Linear Mechanics, 2019Co-Authors: S. I. Senashov, O.v. GomonovaAbstract:Abstract Problem of construction of elastoplastic boundary for a plate weakened by two circular holes with different diameters is solved in the paper using conservation laws. It is assumed that the plate is in elastoplastic Plane Stress State. Based on the proposed method, visualization of elastic and plastic zones of the considered plate is offered.
Le Meifeng - One of the best experts on this subject based on the ideXlab platform.
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A simple model of couple-Stress theory for fiber-reinforced composites—I. Theoretical formulas
Computers & Structures, 1994Co-Authors: Ma Jingming, Le MeifengAbstract:Abstract For fiber-reinforced composites under the Plane Stress State, a model of the couple-Stress theory is presented by means of the special method of resolving the unsymmetrical Stress tensor, the constitutive laws for the couple-Stress theory can be obtained by the classical elasticity theory of composite materials and the Timoshenko theory of beams. The elastic constants are also determined.
J.j. Ryu - One of the best experts on this subject based on the ideXlab platform.
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Influence of in-Plane Stress State on sliding contact fatigue damage of metallic surfaces
Tribology International, 2017Co-Authors: J.j. Ryu, B.h. Chua, Pranav Shrotriya, M.m. FerraroAbstract:Abstract Current study investigates Stress-dependent fatigue wear mechanism of pure copper surfaces in ambient environment. The Stressed copper surface by a unique bending fixture is subjected to sliding motion of the atomic force microscope probe. Wear volumes are determined at different contact loads with variable bending Stresses. Experimental results indicate that the surface damage is accelerated under compressive Stresses and suppressed under tensile Stresses with the similar contact pressures. A numerical model of fatigue Stress intensity factor at the subsurface crack is proposed to explain the Stress-dependent fatigue damage mechanism. The numerical study agreed compressive surface Stress accelerates fatigue wear. Consequently, experimental and numerical studies on dry sliding contact damage concludes a significant dependence of the surface Stress on ductile metal surface.
Anna G. Knyazeva - One of the best experts on this subject based on the ideXlab platform.
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Solid-phase combustion in a Plane Stress State. 2. Stability to small perturbations
Journal of Applied Mechanics and Technical Physics, 2010Co-Authors: Anna G. KnyazevaAbstract:Stability of a Plane reaction front in the solid phase to small perturbations under conditions of a generalized Plane Stress State is studied with allowance of the coupled character of heat transfer and deformation processes and possible changes in the reaction rate under the action of internal Stresses without external mechanical loading. The problem is solved analytically by the method of perturbations. Conditions of the loss of stability of various conversion regimes in some limiting cases are studied for different technological and physical parameters.
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Solid-phase combustion in a Plane Stress State. 1. Stationary combustion wave
Journal of Applied Mechanics and Technical Physics, 2010Co-Authors: Anna G. KnyazevaAbstract:A model that describes propagation of the conversion front in a generalized Plane Stress State typical for technological conditions of coating synthesis on a substrate, with allowance for the coupled character of heat transfer and deformation without external mechanical loading, is proposed. A stationary solution is obtained in the approximation of a narrow combustion front. Ranges of model parameters where the temperature of reaction products and the components of Stress and strain tensors behave differently are identified.