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.pret file

.pret file

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.pret file

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The .pret file is an OptiStruct ASCII format results file.

File Creation

Creation of this file is controlled by the PRETBOLT I/O Options Entry.

File Contents

Result

Description

Pretension force/adjustment

Pretension force/adjustment values for pretension bolts in pretensioning and pretensioned subcases.

File Format

The file is sorted by iteration.  Output from each iteration starts in the following format:

PRETENSION FORCE/ADJUSTMENT VALUES ON THE PRENTESION SECTIONS


 

ITERATION

Iteration_number

Where:

ITERATION is a keyword denoting the beginning of a new iteration.

Iteration_number is the iteration number.

 

Each iteration section contains the force/adjustment values for each pretension bolt in each static subcase. Each such subcase section is given the following header:

 

Subcase

Subcase_id

Subcase_label

Where:

Subcase is a keyword denoting the beginning of the current subcase section.

Subcase_id is the user-defined subcase ID

Subcase_label is the user-defined subcase label

 

Pretension force/adjustment information is then provided, for each bolt, in the following format:

 

Pretension section ID (PRETENS #)

Force-incr

Adjust-incr

Force-tot

Adjust-tot

 

 

Where:

Pretension section ID denotes the pretension section ID (SID of the PRETENS bulk data entry).

Force-incr is the incremental pretension force value when compared to the previous subcase in the loading sequence.

Adjust-incr is the incremental pretension adjustment value when compared to the previous subcase in the loading sequence.

Force-tot is the total pretension force value.

Adjust-tot is the total pretension adjustment value.

Comments

1.The I/O Option RESULTS controls the frequency of output for analytical results during an optimization.

See Also:

PRETENSION

PTFORCE

PTADJST

Pretensioned Bolt Analysis