PLAXIS 2D NEW RELEASE UPDATE

A softening rule implemented through two different formulations.

The initial non-associativity with the ability to simulate the non-linear evolution of the dilation in the postpeak regime.The underlying implementation is further enhanced with the following constitutive features: This Hoek & Brown model implemented in PLAXIS refers to the formulation proposed by Jiang (2017) which can guarantee at the same time smoothness and convexity of the yield surface and plastic potential.

The former idea of HB (Hoek, 1968 Hoek and Brown, 1980), was to link some concepts of fracture mechanics and the macroscopic response resulting from the non-linear trend of the initial yielding. Hoek & Brown (HB) failure criterion has been often employed over the past decades in practical engineering applications due to its intrinsic capability to capture the non-linear behaviour of different types of rocks. This new PLAXIS model has built-in features to assure convergence during the softening path. However, numerical solutions often fail to converge when modeling this softening behavior. Modeling this softening behavior is therefore very important for rational design involving rocks (e.g. Many rocks exhibit the phenomenon of strain softening under loads.

PLAXIS 2D NEW RELEASE UPDATE

With the new release of PLAXIS 2D CONNECT Edition V20 Update 1 (V20.01) and PLAXIS 3D CONNECT Edition V20 Update 1 (V20.01) the PLAXIS installation now comes with all PLAXIS User Defined Soil Models (UDSM), including these newly developed constitutive (soil) models:В Masonry В OC-Clay Hoek and Brown with softening (HBS).

Plaxis 2d new release