Member stresses - values

Returns a stress value for the selected member.

RSA_BAR_STRESS_AT (Stress type, Bar no., Case no., Case component no., Position, Relative)

The RSA_BAR_FORCE_AT formula syntax has the following arguments:

Stress type

The following types of stresses are available:

• FXSX

  axial stress

• SHEARY

  shear stress - TY

• SHEARZ

  shear stress - TZ

• SMAX

  maximal normal stress

• SMAXMY

  maximal stress due to bending moment MY

• SMAXMZ

  maximal stress due to bending moment MZ

• SMIN

  minimal normal stress

• SMINMY

  minimal stress due to bending moment MY

• SMINMZ

  minimal stress due to bending moment MZ

• TORSION

  torsional stress - T

Note: If you type an argument in the formula manually, enclose the text in quotation marks. You can also select or type a cell address (for example A1) which the data will be loaded from.

Bar no.

The following input methods are available:

• Text - type a text (any character string) and enclose it in quotation marks, for example: "ALL" - all members in the project or "1 2 3" - specified list of members
• Number - type an integer
• Cell address - select or type a cell address (for example A1) which the data will be loaded from
• Graphical selection - select this option in the dialog or type "@"
  Note: If members are selected graphically in Autodesk Robot Structural Analysis Professional, then the program returns information for the first member selected.

Case no.

The following input methods are available:

• Text - type a text (any character string) and enclose it in quotation marks, for example: "ALL" - all cases in the project or "1 2 3" - specified list of cases
• Number - type an integer
• Cell address - select or type a cell address (for example A1) which the data will be loaded from
• Graphical selection - select this option in the dialog or type "@"
  Note: If cases are selected graphically in Autodesk Robot Structural Analysis Professional, then the program returns information for the first case selected.

Case component no.

It is a number of the case included in a combination.

The following input methods are available:

• Number - type an integer
• Cell address - select or type a cell address (for example A1) which the data will be loaded from
• Graphical selection - select this option in the dialog or type "@"
  Note: If cases components are selected graphically in Autodesk Robot Structural Analysis Professional, then the program returns information for the first case component selected.

Position

It is a distance (x) which is defined by default as an absolute value (a coordinate of the point along the member length). After selecting the relative value in the dialog, a value from the interval <0, 1> should be specified. The position value must be positive.

The following input methods are available:

• Positive value - type a value (positive real number)
• Cell address - select or type a cell address (for example A1) which the data will be loaded from

Relative

The following input methods are available:

• Check box - select the Relative option in the dialog (then argument in the formula set as TRUE)
• Text - type TRUE (relative value) or FALSE (absolute value)

EXAMPLE

Open the RSA_FORMULAS.rtd and RSA_FORMULAS.xlsx files to get a better understanding of the example below.

Note: The files are located in C:/ProgramData/Autodesk/Examples/Results Connect/RSA.

Formula:

RSA_BAR_STRESS_AT("FXSX",6,8,2,0.8,TRUE) - specifies a value of the axial stress for the member number 6, for the load case number 8, for the component number 2 and at the position 0.8 given as relative value

Result (value):

-39354.74613