Explicit incorporation of asymptotic states into hypoplasticity

Abstract

A rearrangement of the hypoplastic constitutive equation is proposed that enables the incorporation of an asymptotic state boundary surface of an arbitrary pre-defined shape into the model, with any corresponding asymptotic strain rate direction. This opens the way for further development of hypoplastic models.

Predictions of a new clay hypoplastic model based on the propsoed approach are shown for demonstration.

Keywords

• hypoplasticity
• asymptotic behaviour
• clay
• state boundary surface