The user-friendly way to use the plug-in is through the graphic interface.
Just execute the file
You need Abaqus to be executable by the command line
for this to work.
The plug-in for Abaqus looks like this:
Loading and configuring a model¶
desicos.conecylDB is embedded, and the existing models
easily chosen from the Static Database or from the
Dynamic database. When the option
Enter New is active, the buttons
Save is activated and
the user may save a new configuration into the database, which can
be deleted afterwards using the
Geometric parameters easily changed:
Material properties taken from the database and easily changed. Note that the
Dynamic database is implemented here through the use
of the buttons
Save (when the
Enter New option is active)
The laminate is defined giving a different material and thickness to each ply or defining only for the first ply when all the others should have the same material and thicknesses.
The mesh parameters are defined as shown below, and this data can also be saved and loaded in the database.
The analysis parameters are summarized as shown below. After the models are created the user may change those. This analysis’ configuration has been optimized for the Single Perturbation Load Approach (SPLA).
The number of output frames can be changed here, allowing some control
in the size of the output files. The
Request stress output checkbox
must be activated if one intents to perform a stress analysis:
The perturbation loads can be applied using:
The geometric dimples using:
Imperfections from Linear buckling modes:
The cutouts module needs improvement!
Measured geometric imperfections that represent the normal displacement of
the shell mid-surface can be applied too. This must be
applied after creating the study (click on
Similarly, thickness imperfections can be applied. If the study has not yet
been created, click on
Create Study before applying the thickness
Load imperfections can also be considered:
Running the analysis¶
It allows running the jobs in the structure of folders used by the plug-in
in order to keep the models organized. You can
use multiple cpus or
job stopper, which significantly accelerates the analysis time
by stopping the analysis after buckling.
If the post-buckled pattern have to be studied, it may be better to run one
analysis with the
job stopper activated, obtain the axial compression
level that caused the buckling and then run another analysis disabling the
job stopper in order to achieve the desired post-buckled pattern.
The run log file will be printed on the plug-in screen.
For all the options you can add the results to an Excel file or even open the Excel after finished.
The load-shortening curves can be easily plotted:
Or the knock-down curves:
Or the stress analysis results:
An extra options has been added to allow an opened representation of the cylinder or cone, convinient for publications: