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A study of the stress–strain stateStress-strain state of a poroelastic basePoroelastic base with liquid-filled poresLiquid-filled pores has been carried out. The static flat contact problem of pressing a rigid die into such a base is considered. The study was performed within the framework of an ideal incompressible fluid model. TheFinite element method (FEM) finite element method and theANSYS ANSYS software package were used to solve this problem. Special HSFLD241 hydrostatic elementsHydrostatic element were used in the simulation. Two cases were considered: (i) a base with a defect in the form of a pore filled with liquid, and (ii) a base with many pores evenly distributed over an area. For the first case, the effect of the defect size and its position relative to the contact zone on the contact pressureContact pressure and deformationDeformation of the base is investigated. For the second case, the stress–strain stateStress-strain state is calculated for a different number and size of pores. It is shown that the presence of pores filled with liquid has a significant effect on the stress–strain state of the material, which subsequently affects its strength properties and operational characteristics of mechanisms in the production of which such materials are used.

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Modeling of Contact Interaction Between a Stamp and a Poroelastic Base with Liquid-Filled Pores

  • 会议论文

  • 发表日期：

    2025年

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  • Mikhail Chebakov,
  • Sergey Danilchenko

摘要

A study of the stress–strain stateStress-strain state of a poroelastic basePoroelastic base with liquid-filled poresLiquid-filled pores has been carried out. The static flat contact problem of pressing a rigid die into such a base is considered. The study was performed within the framework of an ideal incompressible fluid model. TheFinite element method (FEM) finite element method and theANSYS ANSYS software package were used to solve this problem. Special HSFLD241 hydrostatic elementsHydrostatic element were used in the simulation. Two cases were considered: (i) a base with a defect in the form of a pore filled with liquid, and (ii) a base with many pores evenly distributed over an area. For the first case, the effect of the defect size and its position relative to the contact zone on the contact pressureContact pressure and deformationDeformation of the base is investigated. For the second case, the stress–strain stateStress-strain state is calculated for a different number and size of pores. It is shown that the presence of pores filled with liquid has a significant effect on the stress–strain state of the material, which subsequently affects its strength properties and operational characteristics of mechanisms in the production of which such materials are used.