Abstract
The dynamic behavior of frozen soil under different experimental conditions is examined under impact using the split Hopkinson pressure bar. The experimental results indicate that frozen soil is a rate-dependent and temperature-sensitive material. Based on the theory of consecutive damage mechanics and the Mohr–Coulomb yield criterion, a coupled model of plasticity and damage is proposed to describe the mechanical behavior of frozen soil subjected to impact loadings. Two aspects of the damage mechanism, namely, the tensile damage and compression damage, are coupled to describe damage evolution. The prediction result indicates that the constitutive model can well reveal the relationship between the stress and strain of frozen soil.
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