AreaStressShell

AreaStressShell

Syntax

SapObject.SapModel.Results.AreaStressShell

VB6 Procedure

Function AreaStressShell(ByVal name As String, ByVal ItemTypeElm As eItemTypeElm, ByRef NumberResults As Long, ByRef Obj() As String, ByRef Elm() As String, ByRef PointElm() As String, ByRef LoadCase() As String, ByRef StepType() As String, ByRef StepNum() As Double, ByRef S11Top() As Double, ByRef S22Top() As Double, ByRef S12Top() As Double, ByRef SMaxTop() As Double, ByRef SMinTop() As Double, ByRef SAngleTop() As Double, ByRef SVMTop() As Double, ByRef S11Bot() As Double, ByRef S22Bot() As Double, ByRef S12Bot() As Double, ByRef SMaxBot() As Double, ByRef SMinBot() As Double, ByRef SAngleBot() As Double, ByRef SVMBot() As Double, ByRef S13Avg() As Double, ByRef S23Avg() As Double, ByRef SMaxAvg() As Double, ByRef SAngleAvg() As Double) As Long

Parameters

Name

The name of an existing area object, area element or group of objects, depending on the value of the ItemTypeElm item.

ItemTypeElm

This is one of the following items in the eItemTypeElm enumeration:

ObjectElm = 0

Element = 1

GroupElm = 2

SelectionElm = 3

If this item is ObjectElm, the result request is for the area elements corresponding to the area object specified by the Name item.

If this item is Element, the result request is for the area element specified by the Name item.

If this item is GroupElm, the result request is for the area elements corresponding to all area objects included in the group specified by the Name item.

If this item is SelectionElm, the result request is for area elements corresponding to all selected area objects and the Name item is ignored.

NumberResults

The total number of results returned by the program.

Obj

This is an array that includes the area object name associated with each result, if any.

Elm

This is an array that includes the area element name associated with each result.

PointElm

This is an array that includes the name of the point element where the results are reported.

LoadCase

This is an array that includes the name of the analysis case or load combination associated with each result.

StepType

This is an array that includes the step type, if any, for each result. See 
Analysis Results Step Type
.

StepNum

This is an array that includes the step number, if any, for each result.See 
Analysis Results Step Number
.

S11Top, S22Top, S12Top, S11Bot, S22Bot, S12Bot

The area element internal S11, S22 and S12 stresses, at the top or bottom of the specified area element, at the specified point element location, reported in the area element local coordinate system. [F/L
2
]

SMaxTop, SMinTop, SMaxBot, SMinBot

The area element maximum and minimum principal stresses, at the top or bottom of the specified area element, at the specified point element location. [F/L
2
]

SAngleTop, SAngleBot

The angle measured counter clockwise (when the local 3 axis is pointing toward you) from the area local 1 axis to the direction of the maximum principal stress, at the top or bottom of the specified area element. [deg]

SVMTop, SVMBot

The area element internal top or bottom Von Mises stress at the specified point element. [F/L
2
]

S13Avg, S23Avg

The area element average S13 or S23 out-of-plane shear stress at the specified point element. These items are only reported for area elements with properties that allow plate bending behavior. [F/L
2
]

SMaxAvg

The area element maximum average out-of-plane shear stress.It is equal to the square root of the sum of the squares of S13Avg and S23Avg. This item is only reported for area elements with properties that allow plate bending behavior. [F/L
2
]

SAngleAvg

The angle measured counter clockwise (when the local 3 axis is pointing toward you) from the area local 1 axis to the direction of SMaxAvg. This item is only reported for area elements with properties that allow plate bending behavior. [deg]

Remarks

This function reports the area stresses for the specified area elements that are assigned shell section properties (not plane or asolid properties). Stresses are reported at each point element associated with the area element.

The function returns zero if the stresses are successfully recovered, otherwise it returns a nonzero value.

See 
Analysis Results Remarks
 for more information.

VBA Example

Sub GetAreaStressesShell()

 'dimension variables

 Dim SapObject as cOAPI

 Dim SapModel As cSapModel

 Dim ret As Long

 Dim NumberResults As Long

 Dim Obj() As String

 Dim Elm() As String

 Dim PointElm() As String

 Dim LoadCase() As String

 Dim StepType() As String

 Dim StepNum() As Double

 Dim S11Top() As Double

 Dim S22Top() As Double

 Dim S12Top() As Double

 Dim SMaxTop() As Double

 Dim SMinTop() As Double

 Dim SAngleTop() As Double

 Dim SVMTop() As Double

 Dim S11Bot() As Double

 Dim S22Bot() As Double

 Dim S12Bot() As Double

 Dim SMaxBot() As Double

 Dim SMinBot() As Double

 Dim SAngleBot() As Double

 Dim SVMBot() As Double

 Dim S13Avg() As Double

 Dim S23Avg() As Double

 Dim SMaxAvg() As Double

 Dim SAngleAvg() As Double

 'create Sap2000 object

 Set SapObject = CreateObject("CSI.SAP2000.API.SapObject")

 'start Sap2000 application

 SapObject.ApplicationStart

 'create SapModel object

 Set SapModel = SapObject.SapModel

 'initialize model

 ret = SapModel.InitializeNewModel

 'create model from template

 ret = SapModel.File.NewWall(6, 48, 6, 48)

 'run analysis

 ret = SapModel.File.Save("C:\SapAPI\x.sdb")

 ret = SapModel.Analyze.RunAnalysis

 'clear all case and combo output selections

 ret = SapModel.Results.Setup.DeselectAllCasesAndCombosForOutput

 'set case and combo output selections

 ret = SapModel.Results.Setup.SetCaseSelectedForOutput("DEAD")

 'get area stresses for area object "1"

 ret = SapModel.Results.AreaStressShell("1", Object, NumberResults, Obj, Elm, PointElm, LoadCase, StepType, StepNum, S11Top, S22Top, S12Top, SMaxTop, SMinTop, SAngleTop, SVMTop, S11Bot, S22Bot, S12Bot, SMaxBot, SMinBot, SAngleBot, SVMBot, S13Avg, S23Avg, SMaxAvg, SAngleAvg)

 'close Sap2000

 SapObject.ApplicationExit False

 Set SapModel = Nothing

 Set SapObject = Nothing

 End Sub

Release Notes

Initial release in version 11.00.

Changed nomenclature from Load Cases, Analysis Cases and Response Combinations to Load Patterns, Load Cases and Load Combinations, respectively, in version 12.00.

See Also

AreaJointForceShell

AreaStressShellLayered

AreaJointForceShell