The fracture of materials under intensive short-time loads

We study the quality of simulations related to high-intensity impacts which may lead to critical stresses and destruction of solids. The simulations are done under conditions close to applicability limits of models built with the use of local thermodynamic equilibrium principle. We use Prandtl-Reuss...

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Bibliographic Details
Main Authors: Sharova, Y. S., Boykov, D. S., Beklemysheva, K. A., Vasyukov, A. V., Petrov, I. B.
Format: Conference Proceeding
Language:English
Subjects:
Computer simulation
Fiberglass
Local thermodynamic equilibrium
Plastic flow
Stresses
Online Access:Get full text
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Summary:We study the quality of simulations related to high-intensity impacts which may lead to critical stresses and destruction of solids. The simulations are done under conditions close to applicability limits of models built with the use of local thermodynamic equilibrium principle. We use Prandtl-Reuss approach to elastic-plastic flows. Numerical experiments are performed using explicit monotonized techniques. The following models are considered: (a) Mises model (check of the integral load at any point); (b) Tuler-Butcher model (check of the incubation time); (c) Hashin model (check of stresses with respect to their ultimate values). We discuss the results of solving model problems: fracture in fiberglass suffered to high-energy loads. This work was supported by the RSF (project No. 16-11-00100p).
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5133555