Research output: Contribution to journal › Article › peer-review
Micromechanisms of dynamic fracture of ductile high-strength steel. / Mescheryakov, Yu I.; Mahutov, N. A.; Atroshenko, S. A.
In: Journal of the Mechanics and Physics of Solids, Vol. 42, No. 9, 09.1994, p. 1435-1457.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Micromechanisms of dynamic fracture of ductile high-strength steel
AU - Mescheryakov, Yu I.
AU - Mahutov, N. A.
AU - Atroshenko, S. A.
N1 - Copyright: Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1994/9
Y1 - 1994/9
N2 - Multiscale micromechanisms of dynamic fracture of ductile high-strength Cr-Ni-Mo-V steel are studied by combining a laser interference technique and conventional techniques of optical and electron microscopy. Two scale levels of high-rate strain and fracture were found to form the translational and rotational modes of material motion during shock wave propagation-mesoscopical (0.1-10 μm) and superstructural (50-500 μm). The kinetic and mechanical characteristics of materials at the adjacent scale levels turn out to be in opposite phases relative to each other, strength-characteristics closely connecting with the particle velocity dispersion. Heterogeneous dynamic deformation appears to be realized either in the form of shear bands or in the form of rotational vortices depending on the ratio of particle velocity dispersion and average particle velocity. During dynamic deformation the changing of carbide sizes and lattice parameter occurs, the intensity of these processes being dependent on the mesovolume velocity dispersion as well.
AB - Multiscale micromechanisms of dynamic fracture of ductile high-strength Cr-Ni-Mo-V steel are studied by combining a laser interference technique and conventional techniques of optical and electron microscopy. Two scale levels of high-rate strain and fracture were found to form the translational and rotational modes of material motion during shock wave propagation-mesoscopical (0.1-10 μm) and superstructural (50-500 μm). The kinetic and mechanical characteristics of materials at the adjacent scale levels turn out to be in opposite phases relative to each other, strength-characteristics closely connecting with the particle velocity dispersion. Heterogeneous dynamic deformation appears to be realized either in the form of shear bands or in the form of rotational vortices depending on the ratio of particle velocity dispersion and average particle velocity. During dynamic deformation the changing of carbide sizes and lattice parameter occurs, the intensity of these processes being dependent on the mesovolume velocity dispersion as well.
UR - http://www.scopus.com/inward/record.url?scp=0028497770&partnerID=8YFLogxK
U2 - 10.1016/0022-5096(94)90004-3
DO - 10.1016/0022-5096(94)90004-3
M3 - Article
AN - SCOPUS:0028497770
VL - 42
SP - 1435
EP - 1457
JO - Journal of the Mechanics and Physics of Solids
JF - Journal of the Mechanics and Physics of Solids
SN - 0022-5096
IS - 9
ER -
ID: 71879519