Upgrading from 5.80 to 5.81

The whole version has to be downloaded

Fixed bugs/modifications:

- the problem with pressure surface load defined on three nodes has been fixed.(only in version 3D)
- the problem with surface load on shells, when load is defined on faces different than master one, has been fixed. (only in version 3D)

Upgrading from 5.79 to 5.81

The whole version has to be downloaded (Sentinel drivers will be
automatically updated)

Fixed bugs/modifications:

- the problem with protection under Win XP has been fixed.
- the problem concerning Initial Stress Superelements with nonzero existence functions applied to elements
  with permanent existence function (EXF=0) has been fixed

Upgrading from 5.76 to 5.79

The whole version has to be downloaded and Sentinel drivers (for those who
have Sentinel protection keys and use version older than 5.62) must be updated

Fixed bugs/modifications:

- the problem with dissappearing temperature results during heat transfer analysis has been fixed
- an option Delete Multi Quads has been added to the 2D preprocessor (to eliminate overlapped
  elements if were generated)

Upgrading from 5.72 to 5.76

The whole version has to be downloaded and Sentinel drivers (for those who
have Sentinel protection keys and use version older than 5.62) must be updated

Fixed bugs/modifications:

- the whole code has been generated with new developer tools which yield an improved
  speed by 10% for the calculation module
- the code has been tested under windows XP
- the problem with missing results for membranes has been fixed

Upgrading from 5.71 to 5.72

The whole version has to be downloaded and Sentinel drivers (for those who
have Sentinel protection keys and use version older than 5.62) must be updated

Fixed bugs/modifications:

- problem with Sentinel protection key has been fixed
-detection of nonconvergent time steps has been improved
- M-C and D-P models have been tuned by means of smooth transition from tangent to consistent-tangent
 elasto-plastic operators depending on actual RHS convergence norm

- text size has been enlarged in the post-2D to improve metafiles quality (for reports)
- documentation of *.inp, *.dat and binary output files has been added (available under Help in main menu)
- bug concerning missing results for membranes/rings has been fixed
- the bug related to missing 2*PI*r term for integration of the outflow for axisymmetric problems has been fixed
- selection of elements in post2d has been improved by considering current visibility setup
- tutorial concerning sheet pile wall has been added
- missing earthdam.inp file for tutorial eartdam has been added
- problem with for load time functions introduced as expressions have been fixed
- an option Troubleshooting has been added to the postpro2D which allows to select nodes/elements with which
  some errors are associated (like null pivots, flying contacts/seepages etc...)
- all exceptions which may happen durring opening of a project inside preprocessor are reported in a special log file
 

Upgrading from 5.70 to 5.71

The whole version has to be downloaded and Sentinel drivers (for those who
have Sentinel protection keys and use version older than 5.62) must be updated

Fixed bugs/modifications:

- the previous farfield elements (after Wolf) have been replaced by linear infinite mapped elements
  which do not handle the initial stresses neither gravity; to overcome this difficulty the user should
  define in the nearfield the initial stresses, gravity and apply equivalent surface load on the boundary
  of nearfield ; corresponding chapters in the manual have been updated so please take a look for
  more details
- the problem with loosing of units in postpro2D has been fixed
- the hiding/showing option for selected elements has been added to the Prepro2D so now
  the user can apply the surface load to a distinct continuum element
- the handling of surface loads and their updates has been improved
- several improvements in the Prepro2D have been made to avoid too often refreshing of the screen
  and to increase the performance

Upgrading from 5.63 to 5.70

The whole version has to be downloaded and Sentinel drivers (for those who
have Sentinel protection keys and use version older than 5.62) must be updated

Fixed bugs/modifications:
- since version 5.70 file names including spaces are fully supported
- plotting of the existence functions have been improved

Upgrading from 5.62 to 5.63

The whole version has to be downloaded and Sentinel drivers (for those who
use Sentinel protection keys) must be updated

Fixed bugs/modifications:
- new executable has been generated (requires installation of Java virtual machine under win NT 4.00)
  activated through "Prepro-2D new" (old version is active too); the new executable should increase
  the performance by factor of 250 % and correct problem with lunching Prepro under Windows 2000
  download Java virtual machine - necessary for NT 4.00 and Win 98
- protection of NET version has been corrected in calculation module
- dialog box for axis definition under option : MNT diagrams

Upgrading from 5.61 to 5.62

The whole version has to be downloaded and Sentinel drivers (for those who
use Sentinel protection keys) must be updated

Fixed bugs/modifications:
- the problem with dissappearing of user predefined materials which were yet
  associated with elements in the mesh has been corrected
- the problem with advanced multilaminate model (data mismatch for matrix model) has been
  corrected

Upgrading from 5.60 to 5.61

The whole version has to be downloaded

Fixed bugs/modifications:
- the enforced continuity for inactive contact (in the first inactivity period) is set as a default
  (particulary important for those who reuse data generated with v.4.xx) (in Prep-2D)
- user interface for nonlinear parameters for multilaminate model is corrected (in Z_SOIL menu)
- the problem with Mohr-Coulomb (M-W) for phi=psi=0 and activated size-adjustment has been corrected
  (Calculation module)

Upgrading from 5.56 to 5.60

The whole version has to be downloaded

Fixed bugs/modifications:
-  Improved contact generation in Prepro-2D
-  Bug with automatic reevaluation of units in Postpro-2D
   (directly after launching the application in case of different units for input/output
    set in Z_SOIL menu under System configuration/Units) has been fixed
- problem with missing in v.5.56 dforrt.dll has been corrected (this dll is no more needed)
- view excavation steps option in Prepro-2D has been corrected

Upgrading from 5.55 to 5.56

The whole version has to be downloaded

Fixed bugs/modifications:
-  Generation of surface load has been corrected
-  Generation of fluid boundary condition has been corrected

Upgrading from 5.54 to 5.55

The whole version has to be downloaded

Fixed bugs/modifications:
-  Generation of surface load has been corrected
-  Generation of fluid boundary condition has been corrected
-  Problem with spaces in path to Window temporary directory has been corrected

Upgrading from 5.53 to 5.54

The whole version has to be downloaded

Fixed bugs/modifications:
-  Bug with Initial Stress Superelement definition has been fixed
-  Bug with Inconsistent loading of Flow/def+flow problems with defined Fluid BC   has been fixed
-  Humidity results were unavailable in postpro
-  X,Y coordinates have been added when saving nodal results in external ascii file
-  Bug with Locking of calculations for problems with contact on both sides of single layer shell has been fixed
-   BFGS nonlinear solver (without line searches !) has been added (under Control)

Upgrading from 5.50 to 5.53

The whole version has to be downloaded

Fixed bugs/modifications:
- continuity in first inactive period of real contact existence is generated by default
   this has been added to handle data sets from version 4.3x
- anchor element endpoints are linked to background continuum elements on request and not
  by default as in previous versions (2 checkboxes are added to user interface when creating single anchor)
- BBAR formulation for plane strain continuum elements has been modified (no parasitic out of plane normal
  strains are produced, true Mohr-Coulomb and D-P model with plane strain adjustment yield exactly the same
  limit loads)
- mechanical analysis with associated heat transfer project (generating thermal strains) has been optimized to speedup
  projection and interpolation of results from thermal mesh onto mesh used for mechanical analysis
- the bug in postprocessor when saving Integrals time history in another directory has been fixed

Upgrading from 5.1x to 5.50

The whole version has to be downloaded

Fixed bugs/modifications:
- inclined solid BC definition in preprocessor
- drawing of inclined solid BC in postprocessor
- application error in postprocessor while selection Gauss points for time histories
- infinite file writing when making Sectional quantities time history in postprocessor
- displaying of element/node information in postprocessor (selected elements/nodes sorting)
- few units in preprocessor/postprocessor
- added heat distributed flux
- changed contact handling
- manual updates
- drawing of smooth bending moment diagrams for beams and axisymm. shells
- menu is not hiden during calculations neither postprocessing