Hypoplastic Model for Sand
In this chapter, the hypoplastic model developed by von Wolffersdorff  is introduced. This model is often considered as a reference hypoplastic model for predicting the behaviour of granular materials. To clarify the model structure, the model development was followed step by step in Chap. 4. In this chapter, its mathematical formulation is summarised first, and emphasis is then put on the material parameters and procedures for their calibration.
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