CAESAR II Version 3.24 Changes & Enhancements (3/97) - CAESAR II - Help

CAESAR II Users Guide (2019 Service Pack 1)

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CAESAR II Version
11.0 (2019)
  • Multiple (3) displacement/force/uniform load vectors have been added. These load cases, called D1/D2/D3 and F1/F2/F3, may be toggled on the input plot by continuing to press F3 and F5 (displacements cycle through D1, D2, D3, and then off). The naming of these load cases has also required the renaming of the CAESAR II load combination terms – D1, F1, S1, etc. must now be called DS1, FR1, and ST1. All hanger loads and cold spring forces (from materials 18 and 19) are still combined into load case F1 for consistency with previous versions of CAESAR II.

  • A material database for piping properties and allowable stresses for many of the piping codes supported by CAESAR II has been implemented. This is invoked by pressing [ALT M] on the main CAESAR II input spreadsheet (also at the list option and on the WRC 297 nozzle flexibility spreadsheet). After bringing up the list of materials, a material name can be typed in; matching records are then displayed for selection. Allowable stresses are updated automatically whenever temperatures, materials, and/or piping codes change.

  • Database management is provided from the Utilities option of the main menu. You can edit COADE provided materials or add your own. Material parameters can be provided for code 0 (represents generic values for any non-specified code) or for specific codes. It is recommended, due to future implementation plans, that metals be assigned identification numbers between 100 and 699. FRP materials receive numbers between 700 and 999. Selection of FRP materials from the material database does not currently activate the orthotropic material model in CAESAR II. This must still be done through the use of material 20 (see item 6 concerning this below).

  • Eight-character job names are now supported. Input files are identified by extension ._A, output files by extension ._P, ._S, and so on. Existing files are automatically recognized and converted to their new format. (See related item 16 below.)

  • Modifications have been made to allow multiple users working from the same network data directory through the environment variable COADE_USER. This environment variable should be set to a unique 3 character combination, such as the initials, for each user working in the common directory. Implementation can be done by adding to your AUTOEXEC.BAT file a line such as: SET COADE_USER=TVL

  • CAESAR II’s Valve and Flange database now incorporates data files from CADWorx/Plant. This change provides four advantages:

    • Component weights and lengths are more accurate, as well as traceable to specific catalogs, standards, and so on.

    • Weights and lengths are provided for more components than were previously available in the CRANE or GENERIC databases.

    • Because CADWorx/Plant data files are text files, you can easily edit or add components.

    • If you also have CADWorx/Plant on your computer, the two programs share the same data files and project specs, enhancing the performance of the bi-directional interface. Gaskets are included for flanged items, so a better fit is provided between the CADWorx/Plant and CAESAR II models.

  • You can now set default values for FRP (material 20) parameters through the configuration/setup. These default parameters can be read automatically from manufacturers data files by toggling through the list of available files, and then pressing [ALT-U] (for Update) on the selected vendor file. Vendor files are recognized by their .FRP extensions; because these are text files, you can create them easily yourself, or vendors may distribute them to their customers.

  • The UKOOA (United Kingdom Offshore Operators Association) piping code for FRP piping has been added.

  • The Z183 and Z184 piping codes have been replaced with the Z662 code, which has been expanded to consider calculation of stresses in restrained piping.

  • The ASCE #7 wind code has been updated to the 1995 edition.

  • The API-610 code in the equipment module has been updated to the 8th edition.

  • ASME Section VIII Division 2 stress indices and WRC-107 SIF (kn, kb) values have been incorporated into the WRC-107 module.

  • The Relief Load Synthesis dynamics module now supports metric (or custom) units.

  • A number of configuration file default values have been revised in order to improve calculational results or software performance:

Changed

From

To

BEND_LENGTH_ATTACHMENT=

5.0

1.0

BEND_AXIAL_SHAPE =

NO

YES

FRICT_STIFF =

50000

1.0E6

FRICT_NORM_FORCE_VAR =

25

15

FRICT_ANGLE_VAR =

30

15

VALVE_&_FLANGE =

GENERIC

CADWORX

  • Four new directives added to the configuration file.

    SYSTEM_DIRECTORY_NAME—User defined, defaults to SYSTEM. You vsn now maintain multiple system directories for different projects)

    UNITS_FILE_NAME—User-selected from list. Current units are now set through the configuration/setup, not through the units option of the main menu.

    BS_7159_PRESSURE_STIFFENING—Design strain or Actual Pressure.

    FRP_PROPERTY_DATA_FILE—User-selected from list.

  • The configuration file can also be password protected in the Installation Directory. This prevents modification of all Computation and Stress Control directives. Subsequent use of the configuration module prevents modification of these directives, unless the password is known. Colors, printer settings, and so on can still be changed without the password.

  • CAESAR II has been modified to accept an optional job name (including full drive and path data) as an argument. The software switches to the appropriate drive and directory, opens the specified job, and goes into input bypassing the Main Menu. This allows the definition of ._A files as CAESAR II input files under Windows 95 and subsequent double clicking on the file name in a Windows/95 explorer window to start the input processor on the picked job file. This also allows CAESAR II to be spawned from other programs, right into a job.

  • Modifications to CAD interfaces: Intergraph and CADPIPE.

  • All necessary routines have been checked and modified where appropriate to address the Year 2000 issue.

  • A Korean structural steel shape library has been added.

  • A new spring hanger table has been added (SARAFTHI).

  • PD 5500 nozzle flexibilities have been incorporated to complement the WRC-297 and API 650 nozzle connections.