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Title: Wide-range simulation of elastoplastic wave fronts and failure of solids under high-speed loading

The aim of this paper is numerical study of deformation processes and failure of vanadium under shock-wave loading. According developed statistical theory of solid with mesoscopic defects the constitutive equations were proposed in terms of two structural variables characterizing behavior of defects ensembles: defect density tensor and structural scaling parameter. On the basis of wide-range constitutive equations the mathematical model of deformation behavior and failure of vanadium was developed taking into account the bond relaxation mechanisms, multistage of fracture and nonlinearity kinetic of defects. Results of numerical simulation allow the description of the major effects of shock wave propagation (elastic precursor decay, grow of spall strength under grow strain rate)
Authors:
; ;  [1]
  1. Institute of Continuous Media Mechanics UrB RAS, Perm, 614013 (Russian Federation)
Publication Date:
OSTI Identifier:
22492587
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1683; Journal Issue: 1; Conference: International conference on advanced materials with hierarchical structure for new technologies and reliable structures 2015, Tomsk (Russian Federation), 21-25 Sep 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING; COMPUTERIZED SIMULATION; DEFECTS; DEFORMATION; DENSITY; ELASTICITY; EQUATIONS; FRACTURES; LOADING; NONLINEAR PROBLEMS; NUMERICAL ANALYSIS; PLASTICITY; SHOCK WAVES; SOLIDS; STATISTICAL MODELS; STRAIN RATE; TENSORS; VANADIUM; VELOCITY