Examples with LinearMaterial artisynth.core.materials.LinearMaterial used on opensource projects

Example 6 with LinearMaterial

use of artisynth.core.materials.LinearMaterial in project artisynth_core by artisynth.

the class FemMuscleStiffener method stiffenLinMat.

private void stiffenLinMat(FemElement elem, LinearMaterial restMat, double s) {
    LinearMaterial linMat;
    if (elem.getMaterial() != null && elem.getMaterial() instanceof LinearMaterial) {
        linMat = (LinearMaterial) elem.getMaterial();
    } else {
        linMat = new LinearMaterial();
        elem.setMaterial(linMat);
    }
    linMat.setYoungsModulus(((LinearMaterial) restMat).getYoungsModulus() * s);
}

Example 7 with LinearMaterial

use of artisynth.core.materials.LinearMaterial in project artisynth_core by artisynth.

the class LinearAuxiliaryTest method build.

@Override
public void build(String[] args) throws IOException {
    super.build(args);
    MechModel mech = new MechModel("mech");
    addModel(mech);
    double h = 0.1;
    double r = 0.005;
    LinearMaterial lmat = new LinearMaterial(50000, 0.45, true);
    FemModel3d fem1 = createCylinder(h, r);
    fem1.setName("auxiliary");
    mech.addModel(fem1);
    fem1.setMaterial(new NullMaterial());
    AuxMaterialBundle bundle = new AuxMaterialBundle("mat");
    for (FemElement3d elem : fem1.getElements()) {
        bundle.addElement(new AuxMaterialElementDesc(elem));
    }
    fem1.addMaterialBundle(bundle);
    bundle.setMaterial(lmat);
    FemModel3d fem2 = createCylinder(h, r);
    fem2.setName("linear");
    fem2.setMaterial(lmat);
    mech.addModel(fem2);
    RigidTransform3d rot = new RigidTransform3d(Vector3d.ZERO, AxisAngle.ROT_Y_90);
    fem1.transformGeometry(rot);
    fem2.transformGeometry(rot);
    fem2.transformGeometry(new RigidTransform3d(new Vector3d(0, 2 * r, 0), AxisAngle.IDENTITY));
    RenderProps.setFaceColor(fem2, Color.MAGENTA);
    addMonitor(new StiffnessErrorMonitor(fem1, fem2));
}

Example 8 with LinearMaterial

use of artisynth.core.materials.LinearMaterial in project artisynth_core by artisynth.

the class SinglePyramid method build.

public void build(String[] args) {
    mod = new FemModel3d();
    double[] coords = new double[] { -1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, -1, +0, 0, 1 };
    FemNode3d[] nodes = new FemNode3d[5];
    for (int i = 0; i < 5; i++) {
        nodes[i] = new FemNode3d(coords[i * 3], coords[i * 3 + 1], coords[i * 3 + 2]);
        mod.addNode(nodes[i]);
    }
    PyramidElement pyramid = new PyramidElement(nodes[0], nodes[1], nodes[2], nodes[3], nodes[4]);
    mod.addElement(pyramid);
    // FemNode3d dummy = new FemNode3d(0.0, 0.5, 0.01);
    // dummy.setDynamic(false);
    // mod.addNode(dummy);
    mod.setSurfaceRendering(SurfaceRender.Shaded);
    RenderProps.setShading(mod, Renderer.Shading.FLAT);
    RenderProps.setFaceColor(mod, Color.PINK);
    RenderProps.setShininess(mod, mod.getRenderProps().getShininess() * 10);
    RenderProps.setVisible(mod, true);
    RenderProps.setFaceStyle(mod, Renderer.FaceStyle.FRONT);
    MechModel mechMod = new MechModel("mech");
    mechMod.addModel(mod);
    addModel(mechMod);
    RenderProps.setPointStyle(mod, Renderer.PointStyle.SPHERE);
    RenderProps.setPointRadius(mod, 0.05);
    mod.setGravity(0, 0, -9.8);
    // mod.setGravity (0, 0, 0);
    LinearMaterial linMat = new LinearMaterial();
    IncompNeoHookeanMaterial inhMat = new IncompNeoHookeanMaterial();
    inhMat.setBulkModulus(30000);
    inhMat.setShearModulus(3000);
    // mod.setMaterial (new StVenantKirchoffMaterial());
    // mod.setMaterial (new NeoHookeanMaterial());
    mod.setMaterial(inhMat);
    // mod.setMaterial (linMat);
    mod.setDensity(1000);
    // FemMarker mkr = new FemMarker (0, -1, 0);
    // mod.addMarker (mkr, mod.findContainingElement (mkr.getPosition()));
    nodes[0].setDynamic(false);
    nodes[1].setDynamic(false);
    nodes[3].setDynamic(false);
    createControlPanel(mod);
    System.out.println("gravity weights=" + pyramid.computeGravityWeights().toString("%8.3f"));
}

Example 9 with LinearMaterial

use of artisynth.core.materials.LinearMaterial in project artisynth_core by artisynth.

the class SingleWedge method build.

public void build(String[] args) {
    mod = new FemModel3d();
    double[] coords = new double[] { -1, -1, -1, -1, -1, 1, 1, -1, 1, -1, 1, -1, -1, 1, 1, 1, 1, 1 };
    FemNode3d[] nodes = new FemNode3d[6];
    for (int i = 0; i < 6; i++) {
        nodes[i] = new FemNode3d(coords[i * 3], coords[i * 3 + 1], coords[i * 3 + 2]);
        mod.addNode(nodes[i]);
    }
    WedgeElement wedge = new WedgeElement(nodes[0], nodes[1], nodes[2], nodes[3], nodes[4], nodes[5]);
    mod.addElement(wedge);
    // FemNode3d dummy = new FemNode3d(0.0, 0.5, 0.01);
    // dummy.setDynamic(false);
    // mod.addNode(dummy);
    mod.setSurfaceRendering(SurfaceRender.Shaded);
    RenderProps.setShading(mod, Renderer.Shading.FLAT);
    RenderProps.setFaceColor(mod, Color.PINK);
    RenderProps.setShininess(mod, mod.getRenderProps().getShininess() * 10);
    RenderProps.setVisible(mod, true);
    RenderProps.setFaceStyle(mod, Renderer.FaceStyle.FRONT);
    MechModel mechMod = new MechModel("mech");
    mechMod.addModel(mod);
    addModel(mechMod);
    RenderProps.setPointStyle(mod, Renderer.PointStyle.SPHERE);
    RenderProps.setPointRadius(mod, 0.05);
    mod.setGravity(0, 0, -9.8);
    // mod.setGravity (0, 0, 0);
    LinearMaterial linMat = new LinearMaterial();
    IncompNeoHookeanMaterial inhMat = new IncompNeoHookeanMaterial();
    inhMat.setBulkModulus(30000);
    inhMat.setShearModulus(3000);
    // mod.setMaterial (new StVenantKirchoffMaterial());
    // mod.setMaterial (new NeoHookeanMaterial());
    mod.setMaterial(inhMat);
    // mod.setMaterial (linMat);
    mod.setDensity(1000);
    // FemMarker mkr = new FemMarker (0, -1, 0);
    // mod.addMarker (mkr, mod.findContainingElement (mkr.getPosition()));
    nodes[0].setDynamic(false);
    nodes[1].setDynamic(false);
    nodes[3].setDynamic(false);
    nodes[4].setDynamic(false);
    createControlPanel(mod);
    System.out.println("gravity weights=" + wedge.computeGravityWeights().toString("%8.3f"));
}

Example 10 with LinearMaterial

use of artisynth.core.materials.LinearMaterial in project artisynth_core by artisynth.

the class SelfCollision method build.

public void build(String[] args) {
    build("hex", 1.0, 0.1, 10, 2, NO_FIXED_NODES);
    try {
        myFemMod.addMeshComp(myFemMod.scanMesh(ArtisynthIO.newReaderTokenizer(new StringReader(rightMeshString))));
        myFemMod.addMeshComp(myFemMod.scanMesh(ArtisynthIO.newReaderTokenizer(new StringReader(leftMeshString))));
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    }
    myMechMod.setCollisionBehavior(myFemMod, myFemMod, true);
    myFemMod.setMaterial(new LinearMaterial(40000, 0.2));
    // flair the ends so collision works properly
    makeNodesCircularInYZ(-0.5, 0.03);
    makeNodesCircularInYZ(-0.4, 0.07);
    makeNodesCircularInYZ(-0.3, 0.05);
    makeNodesCircularInYZ(0.3, 0.05);
    makeNodesCircularInYZ(0.4, 0.07);
    makeNodesCircularInYZ(0.5, 0.03);
    myFemMod.resetRestPosition();
    int[] fixedNodes = new int[] { 5, 38, 71, 82, 93, 60, 27, 16, 49 };
    for (int i = 0; i < fixedNodes.length; i++) {
        myFemMod.getNodes().getByNumber(fixedNodes[i]).setDynamic(false);
    }
    myFemMod.updateSlavePos();
}