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Get Stress Tensor Values For Mesh Example (C#)

This example shows how to get the stress tensor values for a mesh in a static study.

//----------------------------------------------------------------------------
// Preconditions:
// 1. Add the SOLIDWORKS Simulation as an add-in (in SOLIDWORKS, click 
//    Tools > Add-ins > SOLIDWORKS Simulation > OK).
// 2. Add the SOLIDWORKS Simulation primary interop assembly as a reference
//    (in the IDE, click Project > Add Reference > .NET > 
//    SolidWorks.Interop.cosworks > OK).
// 3. Open public_documents\samples\Simulation Examples\tutor1.sldprt.
// 4. Open an Immediate window.
//
// Postconditions:
// 1. Activates the Ready static study.
// 2. Meshes and runs the study.
// 3. Gets the stress tensor values for all nodes of element 10 of the mesh.
// 4. Inspect the Immediate window.

//
// NOTE: Because the model is used elsewhere, do not save changes.
// ---------------------------------------------------------------------------
using Microsoft.VisualBasic;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Diagnostics;
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using SolidWorks.Interop.cosworks;
using System.Runtime.InteropServices;
 
namespace GetStressTensorValues_CSharp.csproj
{
    partial class SolidWorksMacro
    {
 
        public void Main()
        {
            CosmosWorks COSMOSWORKS = default(CosmosWorks);
            CwAddincallback CWAddinCallBack = default(CwAddincallback);
            CWModelDoc ActDoc = default(CWModelDoc);
            CWStudyManager StudyMngr = default(CWStudyManager);
            CWStudy Study = default(CWStudy);
            CWMesh CWMesh = default(CWMesh);
            CWResults CWResult = default(CWResults);
            int errCode = 0;
            double el = 0;
            double tl = 0;
            object[] Stress = null;
            object[] elem = null;
            int i = 0;
 
 
            CWAddinCallBack = (CwAddincallback)swApp.GetAddInObject("CosmosWorks.CosmosWorks");
            if (CWAddinCallBack == null)
                ErrorMsg(swApp, "No CWAddinCallBack object");
            COSMOSWORKS = CWAddinCallBack.CosmosWorks;
            if (COSMOSWORKS == null)
                ErrorMsg(swApp, "No CosmosWorks object");

            //Get active document
            ActDoc = COSMOSWORKS.ActiveDoc;
            if (ActDoc == null)
                ErrorMsg(swApp, "No active document");
 
            //Get Ready study
            StudyMngr = ActDoc.StudyManager;
            if (StudyMngr == null)
                ErrorMsg(swApp, "No study manager object");
            StudyMngr.ActiveStudy = 0;
            Study = StudyMngr.GetStudy(0);
            if (Study == null)
                ErrorMsg(swApp, "No study object");
 
            //Mesh
            CWMesh = Study.Mesh;
            if (CWMesh == null)
                ErrorMsg(swApp, "No mesh object");
            CWMesh.Quality = 1;
            CWMesh.GetDefaultElementSizeAndTolerance(0, out el, out tl);
            errCode = Study.CreateMesh(0, el, tl);
            if (errCode != 0)
                ErrorMsg(swApp, "Mesh failed");

            //Run analysis
            errCode = Study.RunAnalysis();
            if (errCode != 0)
                ErrorMsg(swApp, "Analysis failed");

            //Get results
            CWResult = Study.Results;
            if (CWResult == null)
                ErrorMsg(swApp, "No result object");
 
            //Get two-dimensional array of stress tensor values at all nodes of element 10 of the mesh
            Stress = (object[])CWResult.GetStressTensorValuesForAllNodesOfElement(10, (int)swsStrengthUnit_e.swsStrengthUnitPascal, 1, out errCode);
            if (errCode != 0)
            {
                ErrorMsg(swApp, "Error getting stress tensor values as defined in swsNodalResultsOfElementError_e: " + errCode);
            }
            else
            {
                for (i = Stress.GetLowerBound(0); i <= Stress.GetUpperBound(0); i++)
                {
                    elem = (object[])Stress[i];
                    if (i == 0)
                    {
                        Debug.Print("Stress tensor values for all nodes of element 10 of the mesh:");
                        Debug.Print("");
                    }
                    else
                    {
                        Debug.Print("===================================================");
                    }
                    Debug.Print("Element index: " + elem[0]);
                    Debug.Print("Shell face (0=top, 1=bottom, -1=none): " + elem[1]);
                    Debug.Print("Node index: " + elem[2]);
                    Debug.Print("Stress tensor 1 (N/m**2): " + elem[3]);
                    Debug.Print("Stress tensor 2 (N/m**2): " + elem[4]);
                    Debug.Print("Stress tensor 3 (N/m**2): " + elem[5]);
                    Debug.Print("Stress tensor 4 (N/m**2): " + elem[6]);
                    Debug.Print("Stress tensor 5 (N/m**2): " + elem[7]);
                    Debug.Print("Stress tensor 6 (N/m**2): " + elem[8]);
                }
            }
 
        }
 
        public void ErrorMsg(SldWorks SwApp, string Message)
        {
            SwApp.SendMsgToUser2(Message, 0, 0);
            SwApp.RecordLine("'*** WARNING - General");
            SwApp.RecordLine("'*** " + Message);
            SwApp.RecordLine("");
        }
 
 
 
        /// <summary>
        /// The SldWorks swApp variable is pre-assigned for you.
        /// </summary>
 
        public SldWorks swApp;
 
    }
 
 
}

 

 



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