Comprehensive material models for soil, rock and sand
The right material for you
Geotechnical engineers are faced with a massive range of materials when analyzing soil and rock, and even more when predicting its interaction with man made structures.
Utilize DIANA’s extensive library of constitutive models for applications such as foundations, embankments, tunnels, excavations, slope stability, mines and dams.
You are not limited to the material models within DIANA – of course, there is always the opportunity to add user-supplied material parameters. DIANA can be as flexible as you need it to be.
Complete solution for soil-structure interaction
The right analysis options
The analysis capabilities for pore-pressure and consolidation, groundwater flow, earthquake and liquefaction problems are some of the most advanced available on the market.
Essential for the accurate analysis of small and large projects, geotechnical engineers can depend on DIANA to perform single or multiple parallel analyses in an efficient, structured and logical workflow.
You don’t have to be a dedicated geotechnical or structural engineer to carry out analyses with DIANA – the range of material models and analysis functionalities, ensures the lines can be crossed and specialisms combined.
Dedicated features for geotechnical engineering
- In-situ Stress ( Ko procedure/gravity loading/pre-stress) and Pore-pressure Initialisation
- Construction staged analysis
- Drained /undrained analysis
- Seepage analysis (steady state / transient)
- Saturated or partially saturated flow
- Consolidation analysis (full coupled stress-flow analysis)
- Pressure dependent degree of saturation
- Freely moving phreatic surfaces
- Porosity or saturation dependent permeability
- Deformation dependent density and porosity
- Dynamic (linear and nonlinear) and liquefaction analysis
- Special (embedded) pile elements with nonlinear pile shaft and toe interfaces
- Anchors, nails, and rock bolt modelling
- Strength reduction analysis (phi-c)
- Engineering liquefaction
- Mohr-Coulomb, Tresca
- Drucker-Prager, Von Mises
- Transversely Isotropic
- Jointed Rock
- Modified Cam-Clay
- Jardine (London clay)
- Modified Mohr-Coulomb (Cap model)
- Classic Brick
- Special Interface Models
- User supplied subroutine
- Eigenvalue analysis (eigenfrequencies, eigenmodes, participation factors, effective masses)
- Direct frequency response analysis
- Modal frequency response analysis
- Spectral response analysis (ABS, SRSS, and CQC modal combinations)
- Linear and nonlinear time domain analysis (total, transient and steady state, solution)
- Various time integration methods, e.g. Newmark,
- Wilson-theta, Runge-Kutta
- Hybrid Frequency-time domain analysis (steady state solution)
- Fluid-structure interaction
- Multi-directional base acceleration loads
- Prescribed nodal acceleration loads
- Distributed mass elements (2D line elements + 3D surface elements)
- Bounding/boundary elements for far field behavior (2D line elements + 3D surface elements)
- Viscous, structural, and continuous damping
- Specified or calculated initial conditions
Consistent or lumped mass and/or damping matrices
- Towhata-Iai liquefaction model (2D models and largely un-drained conditions)
- Nishi liquefaction model (for 2D/3D, partially drained conditions, arbitrary shearing direction)
- Bowl liquefaction model (for 2D/3D, partially drained conditions, horizontal shearing)
- User-supplied liquefaction models (USRLIQ subroutine)
Choose your subscription
We provide a wide range of flexible licensing modules and subscription plans for advanced calculations. Our Sales Team are always more than happy to discuss your requirements and can make individualized proposals based on your specific needs.