Tensile Tests of a Fluid-Filled Poroelastic Core Sample : Theoretical Consideration

• KURASHIGE Michio

抄録

The literature shows that nonlinear stress-strain curves have been obtained in tensile tests of an epoxy-coated hourglass-shaped rock specimen under confining pressures and concludes that this nonlinearity is caused in part by plasticity and mainly by nonlinear elastic behavior. However, in addition to these causes, some contribution of pore-fluid diffusion in a specimen is expected to occur. The hourglass-shaped specimen was examined in a previous paper. For a noncoated cylindrical specimen (core sample), the present paper analyzes the contribution of radial pore-fluid diffusion to nonlinearity and yields the same conclusion as that in the previous paper; that is, this apparent nonlinearity is small but not negligible. A formula is also given to estimate the bend of the stress-strain curve due to diffusion. Furthermore, stress-strain hysteresis curves are given for the same purpose.

収録刊行物

• JSME international journal. Ser. 1, Solid mechanics, strength of materials

  JSME international journal. Ser. 1, Solid mechanics, strength of materials 35 (2), 185-188, 1992

  一般社団法人 日本機械学会

キーワード

• Elasticity
• Tensile Properties
• Porous Material
• Rock
• Pore Fluid
• Fluid Diffusion
• Nonlinearity
• Stress-Strain Curve

詳細情報

• CRID: 1390001205431583872
• NII論文ID: 110002347671
• NII書誌ID: AA10680585
• DOI: 10.1299/jsmea1988.35.2_185
• ISSN: 09148809
• Web Site: https://www.jstage.jst.go.jp/article/jsmea1988/35/2/35_2_185/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可