Сибирский федеральный университет

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

Конференция: International Conference on Numerical Analysis and Applied Mathematics (ICNAAM); Rhodes, GREECE; Rhodes, GREECE

Год издания: 2015

Идентификатор DOI: 10.1063/1.4912863

Ключевые слова: Rheology; Elasticity; Plasticity; Porous medium; Expansion of cavity; Finite-difference scheme; Parallel computational algorithm, 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.

Журнал: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2014 (ICNAAM-2014)

Выпуск журнала: Vol. 1648

ISSN журнала: 0094243X

Место издания: MELVILLE

Издатель: AMER INST PHYSICS

• Sadovskaya Oxana V. (SB RAS, Inst Computat Modeling, Krasnoyarsk 660036, Russia)
• Sadovskii Vladimir M. (SB RAS, Inst Computat Modeling, Krasnoyarsk 660036, Russia)

• Web of Science Core Collection
• Scopus