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- Article name
- Composite material by analysis of dynamic temperature fields during interacting with hitting element
- Authors
- KALEDIN V. O., , vkaled@mail.ru, Kemerovo State University, Novokuznetsk, Kemerovo Region, Russia
GILYOVA A. Ye., , anna310591@yandex.ru, Kemerovo State University, Novokuznetsk, Kemerovo Region, Russia
BUDADIN O. N., , oleg.budadin@yandex.ru, JSC Central Research Institute for Special Machinery, Khotkovo, Moscow Region, Russia
KOZELSKAYA S. O., , kozelskaya.Sofik1977@yandex.ru, JSC Central Research Institute for Special Machinery, Khotkovo, Moscow Region, Russia
- Keywords
- composite armored protection / irreversible deformation / filament friction / energy absorption / mathematical model / numerical scheme / software implementation
- Year
- 2017 Issue 3 Pages 70 - 82
- Code EDN
- Code DOI
- Abstract
- Mechanical and thermomechanical processes of interacting a hitting element and a multilayered polymer-fabric barrier are considered. A simplified mathematical model describing the deceleration of a hitting element due to dissipation of energy to be expended on the irreversible tensile deformations of fabric filaments, the friction during mutual slipping of filaments and the thermal effect of heating a barrier material has been proposed. The woven material of a layer for modeling is substituted with a solid layer having averaged stiffness and viscosity characteristics. The discrete numerical scheme where the continual representation is reduced to a problem with the final number of degrees of freedom, the motion equations are derived on the basis of Lagrange's equations of the second kind, and the absolutely stable non-conservative difference scheme is used for their integration, has been constructed. The software implementation has been performed on the basis of the functional-object paradigm allowing the problem solution algorithms for modeling of associated and related processes to be constructed. The solutions of numerical control examples of calculating the interaction between a hitting element and a square-in-plane barrier having several layers with the different arrangement of filaments relative to edges have been obtained. Parameters of the constitutive equations are determined by identifying according to the experiment. A model set up in such manner can be used to predict the quality of the armored protection when changing the arrangement and number of layers as well as to diagnose the armored protection according to the data of measuring of dynamic temperature fields.
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