Specify RESULTS=dat on the ENERGY RELEASE RATE keyword.

dat file method and no requirement for a user subroutine compared to the.

This method requires no additional input and has the benefits of sufficient precision compared to the.

This is the default in version 7.9 (and later) so the option does not need to be given in the input file.

Specify RESULTS=odb on the ENERGY RELEASE RATE keyword.

odb file (see also the note below about Abaqus 6.14): This is the recommended method in version 7.8 and is the default method from version 7.9. In Zencrack 7.8, an option was introduced to extract results from the. This results in poor values for the stress intensity factors calculated from the displacements. dat file may be of insufficient precision to allow the local crack opening displacements to be calculated accurately. In such cases the displacement values extracted from the. In particular, in a model with both sides of the crack included, it may be that the global displacements near the crack are several orders of magnitude greater than the local crack opening displacements.

However, these values have limited precision.

In version 7.8 and all earlier releases the default option for extracting contour integral results and nodal displacements from an Abaqus analysis is that the values are taken from the. fil file - this requires the use of a supplied Abaqus user subroutine, URDFIL, and hence a Fortran compiler must be installed. dat file - this can have limited precision. odb file - this is the recommended method. Zencrack has three methods for extracting results from Abaqus: Note that from version 7.9-3 the Zencrack setup program requests information about the number of processors and configures the zencrack.ini file accordingly during the installation process. If the cpus parameter is defined using both methods, the command line value takes precedence. The parameters should be surrounded by quotes. This defines parameters to be passed to the Abaqus command line for that particular Zencrack job.

The command line option '-fe' can be used when executing a Zencrack job.

Refer to the file itself (located in the Zencrack tools folder) or the Installation And Execution Manual for more information about this variable. The cpus option can be added to this parameter.

Variable ZCR_OPTIONS_ABAQUS in the zencrack.ini file (or OPTIONS_ABAQUS for 7.7 and 7.8 in the runzcr script file) can be used to define parameters passed to the Abaqus command line for all Zencrack jobs.

For Zencrack 7.7 to 8.3 there are two ways that the number of processors for Abaqus jobs executed by Zencrack can be specified:

Odb abaqus 6.14 documentation