Abstract
In this study, an isotropic hardening constitutive model is presented to study the behavior of frozen soil under impact loading. In plasticity, a modified Drucker–Prager yield function is adopted. Based on the experimental investigations at different strain rates and different temperatures by means of split Hopkinson pressure bar, the Drucker–Prager criterion has been modified with consideration in the effect of strain rate, and the model parameters have been determined. Compared the constitutive model with the experimental results, the predicted tendencies of the model corresponded well to the test curves.
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Acknowledgment
This work was supported by the National Natural Science Foundation of China (11172251), the Open Fund of State Key Laboratory of Frozen Soil Engineering (SKLFSE201001), and the Open Research Project of State Key Laboratory of Explosion Science and Technology in Beijing Institute of Technology (KFJJ13-10M).
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Ning, J., He, Y. & Zhu, Z. Dynamic constitutive modeling of frozen soil under impact loading. Chin. Sci. Bull. 59, 3255–3259 (2014). https://doi.org/10.1007/s11434-014-0488-y
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DOI: https://doi.org/10.1007/s11434-014-0488-y