Physical Mesomechanics

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Effect of Nanoscale Mesoscopic Structural States Associated with Lattice Curvature on the Mechanical Behavior of Fe-Cr-Mn Austenitic Steel
Physical Mesomechanics - Tập 22 Số 5 - Trang 382-391 - 2019
V. E. Panin, Н. С. Сурикова, S. V. Panin, А. Р. Шугуров, И. В. Власов
Numerical Analysis of Concrete Fracture under Shock Wave Loading
Physical Mesomechanics - Tập 24 - Trang 40-45 - 2021
P. A. Radchenko, S. P. Batuev, A. V. Radchenko
Concrete is known for its low tensile strength. The difference between its compressive and tensile strengths can reach a factor of 15–20. Therefore, it is important to predict the behavior of concrete structures under various operating conditions and unexpected loads. This paper reports the numerical results on the fracture behavior of a high-strength concrete t...... hiện toàn bộ
Fracture model of brittle and quasibrittle materials and geomedia
Physical Mesomechanics - Tập 16 - Trang 207-226 - 2013
P. V. Makarov, M. O. Eremin
A general model and a unified mathematical formalism are proposed for description of inelastic deformation and fracture of any solids, where brittle or plastic, as their evolution in effective force fields. Loaded solids and media are considered as nonlinear dynamic systems. One of the main tasks of the work is to show that if deformation and fracture of a strong medium is treated as its evolution...... hiện toàn bộ
Modeling of Plastic Deformation Based on the Theory of an Orthotropic Cosserat Continuum
Physical Mesomechanics - Tập 23 - Trang 223-230 - 2020
V. M. Sadovskii, M. A. Guzev, O. V. Sadovskaya, Ch. Qi
In the paper, the plastic deformation of heterogeneous materials is analyzed by direct numerical simulation based on the theory of an elastic-plastic orthotropic Cosserat continuum, with the plasticity condition taking into account both the shear and rotational mode of irreversible deformation. With the assumption of a block structure of a material with elastic ...... hiện toàn bộ
Microstructural peculiarities of copper and mechanisms of its hardening after mechanical activation and torsion in Bridgman anvils
Physical Mesomechanics - Tập 17 - Trang 134-140 - 2014
I. A. Ditenberg, K. I. Denisov, A. N. Tyumentsev, M. A. Korchagin, A. V. Korznikov
The paper presents the results of complex research on microstructural peculiarities of copper and mechanisms of its hardening after mechanical activation in planetary ball mills, high-pressure torsion, and combined treatment which includes mechanical activation and subsequent consolidation under high-pressure torsion in Bridgman anvils. The main structural factors responsible for the hardening mec...... hiện toàn bộ
Modeling of Hysteresis in Single-Crystalline Barium Titanate with Allowance for Domain Structure Evolution
Physical Mesomechanics - Tập 26 - Trang 167-175 - 2023
S. M. Lobanov, A. S. Semenov, A. Mamchic
The paper proposes a microstructural model of tetragonal single-crystalline barium titanate for analyzing how the state of its domain structure can influence the simulation accuracy of dielectric hysteresis curves with regard for domain interactions and for stress and electric field inhomogeneities in the single crystal. Hysteresis curves based on finite element homogenization are presented for al...... hiện toàn bộ
Nondestructive Magnetic Monitoring of Residual Stresses in a Medical Ti–6Al–4V–ELI Alloy Using a Fluxgate Sensor
Physical Mesomechanics - Tập 23 - Trang 160-166 - 2020
H. Carreón, M. L. Carreon, M. Carreon-Garcidueñas
Attempts to improve the osteointegration, fixation and stability of Ti-base implants have been focused by producing a significative surface roughness that enhances the surface area available for bone/ implant apposition. In this research study, it shows the experimental data by synchrotron radiation X-ray diffraction (SR-XRD) of the main material surface properties (residual stress and cold work) ...... hiện toàn bộ
Physical mesomechanics of a deformed solid as a multilevel system. II. Chessboard-like mesoeffect of the interface in heterogeneous media in external fields
Physical Mesomechanics - Tập 10 - Trang 5-14 - 2007
V.E. Panin, A.V. Panin, D.D. Moiseenko
Structure, and Mechanical and Tribological Properties of Ti–Cr–C–Ni–Fe Composite Coatings
Physical Mesomechanics - Tập 26 - Trang 691-700 - 2023
M. S. Antipov, P. M. Bazhin, A. S. Konstantinov, A. P. Chizhikov, A. O. Zhidovich, A. M. Stolin
The paper analyzes the structure, and the mechanical and tribological properties of Ti–Cr–C–Ni–Fe coatings formed on R6M5 high-speed steel in four modes of electrospark deposition (ESD) using TiC–NiCr electrodes manufactured by extrusion in combination with self-propagating high-temperature synthesis (SHS). The analysis shows that the coatings formed in the four ESD modes at a discharge energy of ...... hiện toàn bộ
Heat Propagation in a One-Dimensional Harmonic Crystal on an Elastic Foundation
Physical Mesomechanics - Tập 23 - Trang 109-119 - 2020
A. M. Krivtsov, M. B. Babenkov, D. V. Tsvetkov
A closed system of differential equations has been derived to describe thermal processes in a one-dimensional harmonic crystal on an elastic foundation. It is shown that the evolution of thermal perturbation in such a crystal is described by a discrete unsteady-state equation, a special case of which is the hyperbolic equation of ballistic heat conduction. This equation remains valid with negative...... hiện toàn bộ
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