›› 2007, Vol. 28 ›› Issue (10): 2036-2040.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A type of nonlocal constitutive model modified by local theory and analysis of its characteristic length

ZHAO Ji-sheng1, 2, TAO Xia-xin1, 3, OU Jin-ping3, SHI Li-jing1   

  1. 1. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China; 2. State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou 730000, China; 3. School of Civil Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2005-10-13 Online:2007-10-10 Published:2013-10-15

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Abstract: A general modified constitutive model of gradient and viscosity dependent is proposed based on kinematics description by Lagrange; and specified one can be gotten from an elastoplastic constitutive model in infinitesimal theory that is verified. Such a way to deal with the contribution by strain gradient and viscosity utilizes mostly the results of constitutive model research. And an analysis model of square intersection with unit sides, infinite in its length, and under infinitesimal description is adopted here to discuss the characteristic scale in perfect yielding material by parameters of the constitutive model under P wave inputting.

Key words: strain gradient and viscosity dependent constitutive model, characteristic scale, strain localization, P wave

CLC Number: 

  • O 344.3
  • 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.
  • 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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