Based on the relationship between the current yield surface and the reference yield surface,
a new model, called the three-dimensional unified hardening model for over-consolidated …

Hypoplasticity is an incrementally nonlinear constitutive theory of granular materials. It is
able to describe dissipative behaviour, plastic flow and nonlinear effects within the yield …

Tunnels are classified as civil engineering infrastructure which serves various functions that
are primarily associated with transportation of vehicles and liquids. Their design and …

A unified model for clays and sands, referred to as CSUH model, is proposed. The CSUH
model develops the following aspects based on the unified hardening (UH) model:(a) a …

A unified constitutive model for both clay and sand under three-dimensional stress
conditions is derived from the modified Cam-clay model, by taking the following two points …

The first edition of this book was published in 2009 to provide the essentials of
elastoplasticity for students, engineers and scientists in the field of applied mechanics …

Based on the test data of frictional materials and previous research achievements in this
field, a generalized non-linear strength theory (GNST) is proposed. It describes non-linear …

Numerous constitutive models have been developed over the past forty years for modeling
the stress-strain behavior of soils. These models are to be used with finite element and/or …