1)

Multiple (3) displacement/force/uniform load vectors have been added. Note that 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 . Note that all hanger loads and cold spring forces (from materials 18 and 19) are still lumped into load case F1 , for consistency with previous versions of CAESAR II .

2)

A material data base 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. Users may edit COADE provided materials or add their own. Material parameters may 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, while FRP materials receive numbers between 700 and 999. Note that selection of FRP materials from the material database will 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).

3)

8 character job names are now supported (input files are identified by extension ._A, output files by extension ._P, ._S, etc.). Existing files are automatically recognized and converted to their new format. (See related item 16 below.)

4)

Modifications have been made to allow multiple users working from the same network data directory via the environment variable COADE_USER. This environment variable should be set to a unique 3 character combination (i.e., the user’s initials) for each user working in the common directory. Implementation can be done by adding to the user’s AUTOEXEC.BAT file a line such as:

SET COADE_USER=TVL

5)

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

a) Component weights and lengths are more accurate, as well as traceable to specific catalogs, standards, etc.

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

c) Since CADWorx/Pipe data files are text files, users may easily edit or add components.

d) If the user also has CADWorx/Pipe on their machine, the two programs will 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/Pipe and CAESAR II models.

6)

The user may now set default values for FRP (material 20) parameters via the configuration/setup. These default parameters may 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; since these are text files, users may create them easily themselves, or vendors may distribute them to their customers.

7)

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

8)

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.

9)

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

10)

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

11)

ASME Section VIII Division 2 stress indices and WRC-107 SIF (k _n , k _b ) values have been incorporated into the WRC-107 module.

12)

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

13)

A number of configuration file default values have been revised in order to improve calculation results or program performance:

Changed

Fr om

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 (note user may now maintain multiple system directories for different projects)

UNITS_FILE_NAME =

user selected from list (note 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

14)

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, etc. may still be changed by users without the password.

15)

CAESAR II has been modified to accept an optional job name (including full drive and path data) as an argument; the program 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.

16)

Modifications to CAD interfaces: Intergraph and CADPIPE.

17)

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

18)

A Korean structural steel shape library has been added.

19)

A new spring hanger table has been added (SARATHI).

20)

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