›› 2003, Vol. 24 ›› Issue (6): 947-951.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Irreversible volumetric deformation of sand under dynamic loading and its time-domain continuous model

CHEN Wen-hua1 , MEN Fu-lu 2   

  1. 1.Civil Engineering Department, Northern Jiaotong University, Beijing 100044, China; 2. Institute of Engineering Mechanics, China Seismological Bureau, Harbin 150080, China
  • Received:2002-07-15 Online:2003-12-10 Published:2014-08-19

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Abstract: In order to research the elastoplastic deformation of sand skeleton under dynamical shear loading some constitutive models are analyzed and built, including the model of the finally or the irreversible deformation in the touched part of particles which maybe crashed; and a method is designed to verify the above model through testing the percent change of masses of different sizes particles before and after sand liquefaction. In order to simulate the nonlinear dynamical volumetric deformation and constitutive relation of shear stress-shear strain during the liquefaction, a time-domain-discrete model of sand diliatancy is suggested; the simplified equation can easily to explain the liquefaction and easily to analyze the dynamical deformations of sand.

Key words: sand, elastoplastic deformation of soil skeleton, crash model of particle, verification test, time-domain continuous model, irreversible volumetric deformation

CLC Number: 

  • TU 411
  • 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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