Acta Mechanica Solida Sinica

, Volume 29, Issue 1, pp 13–21 | Cite as

A Dynamic Micromechanical Constitutive Model for Frozen Soil under Impact Loading

Article

Abstract

By taking the frozen soil as a particle-reinforced composite material which consists of clay soil (i.e., the matrix) and ice particles, a micromechanical constitutive model is established to describe the dynamic compressive deformation of frozen soil. The proposed model is constructed by referring to the debonding damage theory of composite materials, and addresses the effects of strain rate and temperature on the dynamic compressive deformation of frozen soil. The proposed model is verified through comparison of the predictions with the corresponding dynamic experimental data of frozen soil obtained from the split Hopkinson pressure bar (SHPB) tests at different high strain rates and temperatures. It is shown that the predictions agree well with the experimental results.

Key Words

frozen soil dynamic micromechanical model debonding damage theory SHPB 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2016

Authors and Affiliations

  1. 1.School of Mechanics and EngeeringSouthwest Jiaotong UniversityChengduChina
  2. 2.State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academic SciencesLanzhouChina
  3. 3.State Key Laboratory of Explosion Science and TechnologyBeijing Institute of TechnologyBeijingChina

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