Сибирский федеральный университет

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: International Conference on Numerical Analysis and Applied Mathematics 2014, ICNAAM 2014; Rhodes; Rhodes

Год издания: 2015

Идентификатор DOI: 10.1063/1.4912863

Ключевые слова: elasticity, expansion of cavity, finite-difference scheme, parallel computational algorithm, plasticity, porous medium, rheology

Аннотация: Mathematical model for the description of deformation of a porous metal is constructed on the basis of generalized rheological method, taking into account change in the resistance to external loads, when the collapse of pores occurs. Irreversible deformation is described with the help of yield condition, modeling the plastic loss of stability of a porous skeleton. For a homogeneous porous medium the fields of displacements and stresses in the problem of radial expansion of spherical and cylindrical cavities under the action of internal pressure considering the effect of collapse of pores are constructed in closed form. The algorithm of numerical realization of the model of dynamic deformation of metal foams on multiprocessor computer systems of the cluster type is worked out. © 2015 AIP Publishing LLC.

Журнал: AIP Conference Proceedings

Выпуск журнала: 1648

Номера страниц: 630005

Издатель: American Institute of Physics Inc.

• Sadovskii V.M. (Institute of Computational Modeling, SB RAS)
• Sadovskaya O.V. (Institute of Computational Modeling, SB RAS)

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