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Panel-Envelope – User Manual
SESAM FE Interface
CSTA, LQUA, ILST, IQQE,
FTRS, FQUS, SCTS, SCQS
The list of available beam elements that can be processed is again the same as can be
handled by SIF-AVERAGE, namely:
TESS, BEAS, SECB
The TESS element type is a strut and contains axial load only. If this element is used
to model coplanar stiffeners, the bending moments are set to zero.
The orientations of shell stresses and beam axes are described in Section E.4.
E.3 PRELIMINARY DECK
The preliminary deck contains information about the superelement to be processed by
this run of PANEL-ENVELOPE.
A single command is needed to provide this data as below:
SUPER-ELEMENT prefix filename (superelement)
where:
'prefix'
is a file prefix for the required SIF;
'filename'
is the SIF filename;
'superelement' is the hierarchy reference number of the required superelement
If only one superelement exists within the SIF, the last parameter is not required.
E.4 STRESS EXTRACTION
PREPOST may be used to crate load combinations and store these on the SIN file. These
combined cases and the original constituent cases are then available for code checking.
This is useful for the following reasons:
−
the PANEL suite does not handle complex load cases in the same form as
SESAM. Single complex cases from the analysis should be converted to separate
real and imaginary cases by PREPOST so that they can be processed by SIFAVERAGE. This is possible by careful use of the CREATE RESULTCOMBINATION command in PREPOST;
−
the PANEL suite does not support run numbers and occurrence numbers of load
cases. Again, PREPOST can be used to create load combinations that have a
constant run number to avoid this restriction.
Once the necessary combined cases have been created, SIF-AVERAGE can be used to
subdivide the superelement into groups of beam or shells (across which nodal averaging is
valid). Nodally averaged stresses should then be produced at all nodes on the shell element
groups for selected load cases.
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E-2