The .force file is an OptiStruct ASCII format results file.
Creation of this file is controlled by the FORCE (ELFORCE) I/O option.
|
Result |
Description |
|
Force |
Force results from linear static and inertia relief analyses for ELAS (CELAS1, CELAS2, CELAS3, CELAS4), ROD (CROD), BAR (CBAR, CBEAM), BUSH (CBUSH), PLATE (CQUAD, CTRIA), and GAP (CGAP) elements. |
The file is divided up by iteration. Output from each iteration starts with a line in the following format:
ITER Iteration_number Number_of_subcases
where:
ITER is a keyword denoting the beginning of a new iteration.
Iteration_number is the Iteration number.
Number_of_subcases is the number of subcases for which this output is created.
Each iteration section is divided up by subcase. Output for each subcase starts with a line in the following format:
Id Number_of_elements Frequency LOAD:Spc_id(Datatype) subcase_label
where:
|
ID |
is the output identification number for the subcase. This is not the same as the subcase ID used in the input data. |
|
Number_of_elements |
is the number of elements for which this output is requested. |
|
Frequency |
is 1.0 for static and inertia relief analyses. |
|
LOAD |
is a keyword declaring applied load information. |
|
Spc_id |
is the SID for SPC's referenced by this subcase. |
|
(Datatype) |
is a keyword indicating the type of subcase involved (LOAD) declares data is for a linear static or inertia relief subcase. |
Each subcase section is divided up by element-type. Output for each element-type section starts with one of the following formats (depending on the elements present in the model):
|
ELAS |
# FORCE |
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ROD# |
FORCE-A |
FORCE-B |
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BUSH# |
F-X |
F-Y |
F-Z |
M-X |
M-Y |
M-Z |
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BAR# |
END |
AXIAL |
SHEAR-1 |
SHEAR-2 |
TORQUE |
BENDING-1 |
BENDING-2 |
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PLATE# |
MEMB-X |
MEMB-Y |
MEMB-XY |
BEND-X |
BEND-Y |
TWIST-XY |
SHEAR-XZ |
SHEAR-YZ |
|
GAP# |
COMP-X |
SHEAR-Y |
SHEAR-Z |
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Element force output is then listed under these headings, depending on the type of elements for which this output was selected. The format of the element output matches the corresponding header, i.e. for ROD elements you would get FORCE-A and FORCE-B, whereas for PLATE elements you would get MEMB-X, MEMB-Y, MEMB-XY, BEND-X, BEND-Y, TWIST-XY, SHEAR-XZ, SHEAR-YZ.
The format is:
Eid value1 value2 value3 …
where:
Eid is the element identification number.
value# is the Force result corresponding to the column header.
The I/O option RESULTS controls the frequency of output for analytical results during an optimization.