GGSD Program Details for Sage CRISP

Sage CRISP

Category	Numerical analysis (soil)
Publisher	Cambridge University
Publisher	The CRISP Consortium Limited
Platform	Win3x, Win95/98, WinNT
Status	Commercial
Description	Sage-Crisp is the 2D version of the CRISP critical state soil mechanics program that can be used for drained, undrained and fully coupled consolidation analysis. Features include: Graphical mesh creation and alteration; Structured and unstructured mesh generators; Beam, bar and slip elements in 2D and 3D space; Large deformation formulation using the Updated Lagrangian method; Iterative solution schemes using displacement convergence norm. Extensive material models including: Cam-Clay models based on Critical State Soil Mechanics theory; Mohr-Coulomb elastic-rigid plastic with associated plasticity allowing for better prediction of deformation for soils with varying or zero dilatancy; Mohr-Coloumb with cohesion and/or friction hardening; Duncan and Chang's Hyperbolic model for hard soils such as sand and highly overconsolidated clays. This model estimates variation in stiffness according to the stress level (deviatoric stress) and confining pressure; Three Surface Kinematic Hardening model based on the Cam-Clay model. This allows better simulation of stiffness of soils which exhibit low stiffness at small strain by tracing the soil stress history. Dynamic analysis for Crisp will be available in 1999 using the u-p (displacement-pore pressure) formulation for soil-fluid medium. Crisp was originally developed at Cambridge University; now The Crisp Consortium of academics and engineers provides developement of the fortran finite element engine and organises educational courses in Britain and elsewhere around the world.
Cost	GB Pounds 2600 + GB Pounds 650 annual support
Data formats supported	None stated
Supplier in United States of America	The CRISP Consortium Limited