Improved shape hardening function for bounding surface model for cohesive soils

Predictive Model for Normalized Shear Modulus of Cohesive Soils

called maximum shear modulus, Gmax. It can be determined by in-situ methods from the measurements of the shear wave velocity, Vs, by means of crosshole, down-hole, up-hole, or surface wave testing. The relationship between maximum shear modulus and shear wave velocity is rigorous: 2 max s G V    where ρ is soil density. This parameter can be also obtained in laboratory by resonant column or ...

A Bounding Surface Plasticity Model for Soils with Stress Increment Direction Dependent Plastic Potential

A new, continuous stress direction dependent plastic potential is proposed for the stress strain behaviour of soils. The resulting flow rule is incorporated into a bounding surface plasticity model within a critical state framework. The hypoplastic bounding surface model thus formulated is employed to predict both the compression and shearing behaviour of soil for various stress paths in the p′...

Improved shape for multi-surface blends

For many design applications, where multiple primary surface pieces meet, the distribution of curvature is more important than formally achieving exact curvature continuity. For parametric spline surfaces, when constructing a multi-sided surface cap, we demonstrate a strong link between the uniform variation of the re-parameterization between (boundary) data of the joining pieces and a desirabl...

A method for measuring the critical shear stress of cohesive soils

Improved Sparse Shape Composition Model for Multi- shape Prior

Shape prior modeling is a challenging and crucial component in various image segmentation applications. Most existing methods aim at dealing with single object’s shape variation, which are not directly applicable for multishape prior modeling. In this paper, we present an extension of recently proposed Spare Shape Composition model (SSC) for multi-shape prior modeling. In this extension, multip...