›› 2006, Vol. 27 ›› Issue (4): 561-565.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Primary study of stress-strain constitutive relation for porous media

SHAO Long-tan, SUN Yi-zhen   

  1. Stake Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
  • Received:2004-08-30 Online:2006-04-10 Published:2013-11-05

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Abstract: The existing of voids is the character of the porous media, which determine the constitution relation of porous media will be more complicated. A model of ideal porous media is presented. The apparent stress and apparent strain, actual stress and actual strain of skeleton for porous medium are defined. A discussion of the stress-strain relationship of the ideal porous medium suggests that although skeleton structure could be satisfied with the hypothesis of stress-strain linear elastic, the relationship between apparent stress and apparent strains remains nonlinear character. The nonlinear relation of stress and strain is the character of porous media.

Key words: porous media, actual stress, actual strain, apparent stress, apparent strain, constitutive relation

CLC Number: 

  • TU 452
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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