Summary for version 7.5

x86 64bit versions

A 32bit version of Zencrack has been available for x86 processors running Windows since 1998. With the release of version 7.5 we are pleased to add the availability of 64bit versions of Zencrack for x86 processors running 64bit versions of Windows or Linux.

General

• Introduction of a new "enhanced ring control" mapping option for crack-blocks.
• Option to search available results data to identify the minimum and maximum energy release rate conditions for each crack front node.
• Option to define a weighted average growth direction from multiple results sets.
• Automatic element edge splitting on the crack front to enable modelling of geometries that were awkward in previous releases.
• Enhancements to the options for saving f.e. results files.
• Creation of some new crack-related element and node sets and improved control over the generation of all crack-related sets.
• Option to allow the user to specify the start element and node numbers for crack-blocks.
• New user subroutines user_prefea, user_postfea, user_directionfromsif.
• Fourteen new crack-blocks.

Abaqus interface

• Shear load types TRSHRn and TRSHRnNU are updated on the outer surfaces of the crack-blocks if these loads are applied to the target crack-block elements.

Ansys interface

• Support for j-integral calculation in an Ansys analysis. This requires Ansys 11.0SP1 (or later versions).
• The handling of multiple sets of load increments from an Ansys (non-linear) analysis has been improved.
• The handling of thermal-stress analysis in the Ansys interface has been improved.

Finas interface

• Support is added for Finas user subroutines.

Marc interface

• Improved support for large crack-blocks.
• Processing of multiple load increments from the f.e. analysis is now possible.
• Improved options for specifying the Marc executable and for the use of Marc user subroutines are available.