-
Notifications
You must be signed in to change notification settings - Fork 8
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #37 from gismo/tutorials
Add tutorials
- Loading branch information
Showing
6 changed files
with
240 additions
and
3 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!--This file was created by G+Smo 21.12.0--> | ||
| <xml> | ||
| <Geometry type="TensorBSpline3" id="0"> | ||
| <Basis type="TensorBSplineBasis3"> | ||
| <Basis type="BSplineBasis" index="0"> | ||
| <KnotVector degree="2">0 0 0 1 1 1 </KnotVector> | ||
| </Basis> | ||
| <Basis type="BSplineBasis" index="1"> | ||
| <KnotVector degree="2">0 0 0 1 1 1 </KnotVector> | ||
| </Basis> | ||
| <Basis type="BSplineBasis" index="1"> | ||
| <KnotVector degree="2">0 0 0 1 1 1 </KnotVector> | ||
| </Basis> | ||
| </Basis> | ||
| <coefs geoDim="3"> | ||
| 0 0 0.49 | ||
| 0.5 0 0.99 | ||
| 1 0 0.49 | ||
| 0 0.5 0.99 | ||
| 0.5 0.5 1.45 | ||
| 1 0.5 0.99 | ||
| 0 1 0.49 | ||
| 0.5 1 0.99 | ||
| 1 1 0.49 | ||
| 0 0 0.5 | ||
| 0.5 0 1 | ||
| 1 0 0.5 | ||
| 0 0.5 1 | ||
| 0.5 0.5 1.5 | ||
| 1 0.5 1 | ||
| 0 1 0.5 | ||
| 0.5 1 1 | ||
| 1 1 0.5 | ||
| 0 0 0.51 | ||
| 0.5 0 1.01 | ||
| 1 0 0.51 | ||
| 0 0.5 1.01 | ||
| 0.5 0.5 1.51 | ||
| 1 0.5 1.01 | ||
| 0 1 0.51 | ||
| 0.5 1 1.01 | ||
| 1 1 0.51 | ||
| </coefs> | ||
| </Geometry> | ||
| <MultiPatch parDim="2" id="1"> | ||
| <patches type="id_range">0 0</patches> | ||
| <boundary>0 1 | ||
| 0 2 | ||
| 0 3 | ||
| 0 4 | ||
| </boundary> | ||
| </MultiPatch> | ||
| </xml> | ||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| ###################################################################### | ||
| ## CMakeLists.txt --- gsStructuralAnalysis/tutorials | ||
| ## This file is part of the G+Smo library. | ||
| ## | ||
| ## Author: Angelos Mantzaflaris, Hugo Verhelst | ||
| ## Copyright (C) 2023 | ||
| ###################################################################### | ||
|
|
||
| # add example files | ||
| aux_cpp_directory(${CMAKE_CURRENT_SOURCE_DIR} FILES) | ||
| foreach(file ${FILES}) | ||
| add_gismo_executable(${file}) | ||
| get_filename_component(tarname ${file} NAME_WE) # name without extension | ||
| set_property(TEST ${tarname} PROPERTY LABELS "${PROJECT_NAME}") | ||
| if(GISMO_BUILD_EXAMPLES) | ||
| set_target_properties(${tarname} PROPERTIES FOLDER "${PROJECT_NAME}") | ||
| add_dependencies(${PROJECT_NAME}-tutorials ${tarname}) | ||
| else(GISMO_BUILD_EXAMPLES) | ||
| set_target_properties(${tarname} PROPERTIES | ||
| FOLDER "${PROJECT_NAME}" | ||
| EXCLUDE_FROM_ALL TRUE) | ||
| endif(GISMO_BUILD_EXAMPLES) | ||
| # install the example executables (optionally) | ||
| install(TARGETS ${tarname} DESTINATION "${BIN_INSTALL_DIR}" COMPONENT exe OPTIONAL) | ||
| endforeach(file ${FILES}) |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| /** @file gsKLShell/tutorials/linear_solid.cpp | ||
| @brief Tutorial for assembling solid elasticity | ||
| This file is part of the G+Smo library. | ||
| This Source Code Form is subject to the terms of the Mozilla Public | ||
| License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| Author(s): H.M.Verhelst | ||
| */ | ||
|
|
||
| #include <gismo.h> | ||
|
|
||
| //! [Includes] | ||
| #include <gsElasticity/gsElasticityAssembler.h> | ||
| //! [Includes] | ||
|
|
||
| using namespace gismo; | ||
|
|
||
| int main(int argc, char *argv[]) | ||
| { | ||
| //! [Parse command line] | ||
| bool plot = false; | ||
| index_t numRefine = 1; | ||
| index_t numElevate = 1; | ||
|
|
||
| gsCmdLine cmd("Linear shell tutorial."); | ||
| cmd.addInt( "e", "degreeElevation","Number of degree elevation steps to perform before solving (0: equalize degree in all directions)", numElevate ); | ||
| cmd.addInt( "r", "uniformRefine", "Number of Uniform h-refinement steps to perform before solving", numRefine ); | ||
| cmd.addSwitch("plot", "Create a ParaView visualization file with the solution", plot); | ||
| try { cmd.getValues(argc,argv); } catch (int rv) { return rv; } | ||
| //! [Parse command line] | ||
|
|
||
| //! [Read geometry] | ||
| // Initialize [ori]ginal and [def]ormed geometry | ||
| gsMultiPatch<> ori; | ||
| std::string fileName = "paraboloid_volume.xml"; | ||
| gsReadFile<>(fileName, ori); | ||
| //! [Read geometry] | ||
|
|
||
| //! [Initialize geometry] | ||
| // p-refine | ||
| if (numElevate!=0) | ||
| ori.degreeElevate(numElevate); | ||
| // h-refine (only in first two directions) | ||
| for (int r =0; r < numRefine; ++r) | ||
| { | ||
| ori.uniformRefine(1,1,0); | ||
| ori.uniformRefine(1,1,1); | ||
| } | ||
|
|
||
| // creating basis | ||
| gsMultiBasis<> basis(ori); | ||
| //! [Initialize geometry] | ||
|
|
||
| //! [Set boundary conditions] | ||
| // Define the boundary conditions object | ||
| gsBoundaryConditions<> bc; | ||
| // Set the geometry map for computation of the Dirichlet BCs | ||
| bc.setGeoMap(ori); | ||
|
|
||
| // Set the boundary conditions | ||
| gsFunctionExpr<> surf_force("0","0","-1e4",3); | ||
| for (index_t c=0; c!=3; c++) | ||
| { | ||
| bc.addCornerValue(boundary::southwestfront, 0.0, 0, c); // (corner,value, patch, unknown) | ||
| bc.addCornerValue(boundary::southeastfront, 0.0, 0, c); // (corner,value, patch, unknown) | ||
| bc.addCornerValue(boundary::northwestfront, 0.0, 0, c); // (corner,value, patch, unknown) | ||
| bc.addCornerValue(boundary::northeastfront, 0.0, 0, c); // (corner,value, patch, unknown) | ||
| } | ||
| bc.addCondition(boundary::front, condition_type::neumann, &surf_force); | ||
| //! [Set boundary conditions] | ||
|
|
||
| //! [Set surface force] | ||
| // The surface force is defined in the physical space, i.e. 3D | ||
| gsFunctionExpr<> body_force("0","0","0",3); | ||
| //! [Set surface force] | ||
|
|
||
| //! [Define the assembler] | ||
| gsElasticityAssembler<real_t> assembler(ori,basis,bc,body_force); | ||
| assembler.options().setReal("YoungsModulus",1.E9); | ||
| assembler.options().setReal("PoissonsRatio",0.45); | ||
| assembler.options().setInt("DirichletValues",dirichlet::l2Projection); | ||
|
|
||
| //! [Assemble linear part] | ||
| gsInfo<<"Assembling...\n"; | ||
| gsStopwatch clock; | ||
| clock.restart(); | ||
| assembler.assemble(); | ||
| gsInfo << "Assembled a system with " | ||
| << assembler.numDofs() << " dofs in " << clock.stop() << "s.\n"; | ||
|
|
||
| gsInfo << "Solving...\n"; | ||
| clock.restart(); | ||
|
|
||
| gsSparseMatrix<> matrix = assembler.matrix(); | ||
| gsVector<> vector = assembler.rhs(); | ||
| //! [Assemble linear part] | ||
|
|
||
| //! [Solve linear problem] | ||
| gsInfo<<"Solving system with "<<assembler.numDofs()<<" DoFs\n"; | ||
| gsVector<> solVector; | ||
| gsSparseSolver<>::CGDiagonal solver; | ||
| solver.compute( matrix ); | ||
| solVector = solver.solve(vector); | ||
| //! [Solve linear problem] | ||
|
|
||
| //! [Construct solution and deformed geometry] | ||
| // constructing solution as an IGA function | ||
| gsMultiPatch<> displ; | ||
| assembler.constructSolution(solVector,assembler.allFixedDofs(),displ); | ||
| gsMultiPatch<> def = ori; | ||
| for (index_t p = 0; p < def.nPieces(); ++p) | ||
| def.patch(p).coefs() += displ.patch(p).coefs(); | ||
| //! [Construct solution and deformed geometry] | ||
|
|
||
|
|
||
| //! [Evaluate solution] | ||
| // Evaluate the solution on a reference point (parametric coordinates) | ||
| // The reference points are stored column-wise | ||
| gsMatrix<> refPoint(3,1); | ||
| refPoint<<0.5,0.5,1.0; | ||
| // Compute the values | ||
| gsVector<> physpoint = def.patch(0).eval(refPoint); | ||
| gsVector<> refVals = displ.patch(0).eval(refPoint); | ||
| // gsInfo << "Displacement at reference point: "<<numVal<<"\n"; | ||
| gsInfo << "Displacement at reference point (" | ||
| <<ori.patch(0).eval(refPoint).transpose()<<"): " | ||
| <<": "<<refVals.transpose()<<"\n"; | ||
| //! [Evaluate solution] | ||
|
|
||
| // ! [Export visualization in ParaView] | ||
| if (plot) | ||
| { | ||
| // Plot the displacements on the deformed geometry | ||
| gsField<> solField(def, displ); | ||
| gsInfo<<"Plotting in Paraview...\n"; | ||
| gsWriteParaview<>( solField, "Deformation", 10000, true); | ||
|
|
||
| // Plot the membrane Von-Mises stresses on the geometry | ||
| // constructing stresses | ||
| gsPiecewiseFunction<> VMm; | ||
| assembler.constructCauchyStresses(displ,VMm,stress_components::von_mises); | ||
| gsField<> membraneStress(def,VMm, true); | ||
| gsWriteParaview(membraneStress,"MembraneStress",10000); | ||
| } | ||
| // ! [Export visualization in ParaView] | ||
|
|
||
| return EXIT_SUCCESS; | ||
|
|
||
| }// end main |