Z_SOIL v2007
            New features vs Z_SOIL v6

General options:

1. Large displacements and rotations for all types of elements (including contact)
2. Dynamics (supported for structural elements only) (Newmark and HHT time integration schemes)
3. Pushover analysis
4. Mesh tying (connection of dissimilar meshes in 2D and 3D) with high accuracy
5. Hinges in shell elements
6. New beam elements for modeling of structures (no need to split structural members even in nonlinear range)
7. New construction algorithm for evolving structures
8. Modified ECP Hujeux model for soils
9. "True" M-C model with cut-off dilatancy
10. User defined 1D fiber model for beams
11. Highly accurate finite elements for modeling structures via continuum elements (applicable to the elastic constitutive model only)
12. Data verification at the preprocessing level

Preprocessing options:

1. Fully integrated 2D/3D graphical preprocessor
2. Generation of the data on 2 levels: macro-model and FE model
    2.1 Mesh generation methods for 2D macroelements
        a) Structured -- based on quadrilateral or triangular template
        b) Unstructured (automatic with Q-morph technique) for any 2D domain
        c) Morphing of existing mesh on skeleton
    2.2 Mesh generation methods for 3D macroelements
        a) Structured for volumes -- based on brick or wedge skeleton templates
        b) Structured for surfaces -- based on quadrilateral or triangular skeleton templates
        c) Morphing of continuum meshes on macro-brick or macro-wedge skeletons
        d) Morphing of surface meshes  on quadrilateral or triangular skeletons
        e) Several extrusion methods
3. New algorithm for generating contact interfaces in 2D
4. Intersection of 3D surfaces
5. Automatic mesh refinement in 2D/3D
6. Automatic generation of existence functions for multi-stage excavations
7. CAD type tools to draw macro-model skeleton
8. New management system for materials, existence functions and load time functions; discontinues numbering and Add / Delete options are available

Postprocessing options:

1. Fully integrated 2D/3D postprocessor
2. Highly accurate new stress recovery technique for continuum and shell elements
3. Reduction of the volume of the output for continuum and shell/membrane elements (reduced to the center of the element only)
4. New technique to recover stress resultants M, N, T from continuum elements in 2D models
5. Visualization of colour contours of stresses in elastic and layered shells (core material only)
6. Automatic reporting capabilities (via Excel) for pushover analysis and visualization of the 1-st eigenmode
7. Visualization of plastic zones in nonlinear structural elements (beams, shells)


Documentation and tutorials:

1. All documentation is prepared in form of PDF files with an extended index
2. Tutorials are prepared in form of video films