Micromechanics-Based Elastic Fields of Closed-Cell Porous Media
作者: Lianhua Ma and Qingsheng Yang
刊名: CMES: Computer Modeling in Engineering & Sciences, 2018, Vol.114 (2), pp.239-259
来源数据库: Tech Science Press
DOI: 10.3970/cmes.2018.114.239
关键词: Porous mediaFluid-filled poresLocal elastic fieldsFluid pressureMicromechanics.
原始语种摘要: Fluid-filled closed-cell porous media could exhibit distinctive features which are influenced by initial fluid pressures inside the cavities. Based on the equivalent far-field method, micromechanics-based solutions for the local elastic fields of porous media saturated with pressurized fluid are formulated in this paper. In the present micromechanics model, three configurations are introduced to characterize the different state the closed-cell porous media. The fluid-filled cavity is assumed to be a compressible elastic solid with a zero shear modulus, and the pressures in closed pores are represented by eigenstrains introduced in fluid domains. With the assumption of spheroidal fluid-filled pores, the local stress and strain fields in solid matrix of porous media are derived by using the...
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  • porous 多孔的
  • filled 满的
  • characterize 成为...的特性
  • pores 气孔
  • materials 工业三废
  • modulus 系数
  • closed 闭路的
  • fluid 
  • spheroidal 球状的
  • elastic 有弹性的