public static void Run()
{
bool dynamic = true;
/// Choose one of the mesh files bundled with the project
//string meshPath = projectDirectory + "\\cantilever_quad4.msh";
//string meshPath = projectDirectory + "\\cantilever_quad8.msh";
//string meshPath = projectDirectory + "\\cantilever_quad9.msh";
//string meshPath = projectDirectory + "\\cantilever_tri3.msh";
string meshPath = projectDirectory + "\\cantilever_tri6.msh";
/// Or set a path on your machine
//string meshPath = @"C:\Users\Serafeim\Desktop\Presentation\cantilever.msh";
(IReadOnlyList <Node> nodes, IReadOnlyList <CellConnectivity <Node> > elements) = GenerateMeshFromGmsh(meshPath);
//(IReadOnlyList<Node> nodes, IReadOnlyList<CellConnectivity<Node>> elements) = GenerateUniformMesh();
//(IReadOnlyList<Node> nodes, IReadOnlyList<CellConnectivity<Node>> elements) = GenerateMeshManually();
PreprocessorModel model = CreateModel(nodes, elements);
if (dynamic)
{
ApplyLoadsDynamic(model);
}
else
{
ApplyLoadsStatic(model);
}
OutputRequests output = DefineOutput();
Solve(model, output, dynamic);
}
private static OutputRequests DefineOutput()
{
OutputRequests output = new OutputRequests(workingDirectory + "\\Plots");
output.Displacements = true;
output.Strains = true;
output.Stresses = true;
output.StressesVonMises = true;
return(output);
}
private static void Solve(PreprocessorModel model, OutputRequests output, bool dynamic)
{
// Set up the simulation procedure
Job job = new Job(model);
if (dynamic)
{
job.Procedure = Job.ProcedureOptions.DynamicImplicit;
}
else
{
job.Procedure = Job.ProcedureOptions.Static;
}
job.Integrator = Job.IntegratorOptions.Linear;
job.Solver = Job.SolverOptions.DirectSkyline;
job.FieldOutputRequests = output;
// Run the simulation
job.Submit();
}
private static void SolveDynamicLinearWall()
{
// Some values
string workingDirectory = @"C:\Users\Serafeim\Desktop\Presentation";
double thickness = 0.1;
double youngModulus = 2E6;
double poissonRatio = 0.3;
// Initialize model
PreprocessorModel model = PreprocessorModel.Create2DPlaneStress(thickness);
// Materials
ElasticMaterial2D material = new ElasticMaterial2D(StressState2D.PlaneStress)
{
YoungModulus = youngModulus,
PoissonRatio = poissonRatio
};
DynamicMaterial dynamicProperties = new DynamicMaterial(25, 0.05, 0.05, true);
// Read mesh from GMSH file
string meshPath = workingDirectory + "\\wall.msh";
IReadOnlyList <Node> nodes;
IReadOnlyList <CellConnectivity <Node> > elements;
using (var reader = new GmshReader <Node>(meshPath))
{
(nodes, elements) = reader.CreateMesh((id, x, y, z) => new Node(id: id, x: x, y: y, z: z));
}
model.AddMesh2D(nodes, elements, material, dynamicProperties);
// Prescribed displacements
double tol = 1E-10;
IEnumerable <Node> constrainedNodes = nodes.Where(node => Math.Abs(node.Y) <= tol);
model.ApplyPrescribedDisplacements(constrainedNodes, StructuralDof.TranslationX, 0.0);
model.ApplyPrescribedDisplacements(constrainedNodes, StructuralDof.TranslationY, 0.0);
// Loads
string accelerogramPath = workingDirectory + "\\elcentro_NS.txt";
Dictionary <IDofType, double> magnifications = new Dictionary <IDofType, double>
{
{ StructuralDof.TranslationX, 1.0 }
};
model.SetGroundMotion(accelerogramPath, magnifications, 0.02, 53.74);
// Define output
OutputRequests output = new OutputRequests(workingDirectory + "\\Plots");
output.Displacements = true;
output.Strains = true;
output.Stresses = true;
output.StressesVonMises = true;
// Set up the simulation procedure
Job job = new Job(model);
job.Procedure = Job.ProcedureOptions.DynamicImplicit;
job.Integrator = Job.IntegratorOptions.Linear;
job.Solver = Job.SolverOptions.DirectSkyline;
job.FieldOutputRequests = output;
// Run the simulation
job.Submit();
}
private static void SolveStaticLinearWall()
{
// Some values
string workingDirectory = @"C:\Users\Serafeim\Desktop\Presentation";
double height = 3.5;
double thickness = 0.1;
double youngModulus = 2E6;
double poissonRatio = 0.3;
double horizontalLoad = 1000.0;
// Initialize model
PreprocessorModel model = PreprocessorModel.Create2DPlaneStress(thickness);
// Materials
ElasticMaterial2D material = new ElasticMaterial2D(StressState2D.PlaneStress)
{
YoungModulus = youngModulus,
PoissonRatio = poissonRatio
};
// Read mesh from GMSH file
string meshPath = workingDirectory + "\\wall.msh";
IReadOnlyList <Node> nodes;
IReadOnlyList <CellConnectivity <Node> > elements;
using (var reader = new GmshReader <Node>(meshPath))
{
(nodes, elements) = reader.CreateMesh((id, x, y, z) => new Node(id: id, x: x, y: y, z: z));
}
model.AddMesh2D(nodes, elements, material);
// Prescribed displacements
double tol = 1E-10;
IEnumerable <Node> constrainedNodes = nodes.Where(node => Math.Abs(node.Y) <= tol);
model.ApplyPrescribedDisplacements(constrainedNodes, StructuralDof.TranslationX, 0.0);
model.ApplyPrescribedDisplacements(constrainedNodes, StructuralDof.TranslationY, 0.0);
// Loads
Node[] loadedNodes = nodes.Where(
node => (Math.Abs(node.Y - height) <= tol) && ((Math.Abs(node.X) <= tol))).ToArray();
if (loadedNodes.Length != 1)
{
throw new Exception("Only 1 node was expected at the top left corner");
}
model.ApplyNodalLoad(loadedNodes[0], StructuralDof.TranslationX, horizontalLoad);
// Define output
OutputRequests output = new OutputRequests(workingDirectory + "\\Plots");
output.Displacements = true;
output.Strains = true;
output.Stresses = true;
output.StressesVonMises = true;
// Set up the simulation procedure
Job job = new Job(model);
job.Procedure = Job.ProcedureOptions.Static;
job.Integrator = Job.IntegratorOptions.Linear;
job.Solver = Job.SolverOptions.DirectSkyline;
job.FieldOutputRequests = output;
// Run the simulation
job.Submit();
}
