[ChristophOtte]

Hi Hugo,

thank you very much for the advice, this helps a lot. I will have a look for hyperelasticity.

Now i try again to attach the links to the files.

https://www.dropbox.com/s/ccjavls2igu3m7m/meshes.7z?dl=0

Best regards

Christoph

[ChristophOtte]

Ok, unfortunately i’m not able to post the links here, because the server thinks it is spam. Is there any other way to attach the meshes?

best regards

Christoph

[ChristophOtte]

<?xml version="1.0"?>
<!-- The root node defines the global animation environment-->
<Node name="root" dt="0.00001" gravity="0 -981 0">
    <FreeMotionAnimationLoop/>
    <LCPConstraintSolver tolerance="1e-3" maxIt="1000"/>
    <!-- Defining the global collision pipeline: broad, narrow phase and response -->
    <CollisionPipeline depth="6" verbose="0" draw="0"/>
    <BruteForceDetection name="N2"/>
    <LocalMinDistance name="Proximity" alarmDistance="0.2" contactDistance="0.01"/>
    <CollisionResponse name="Response" response="FrictionContact"/>

    <MeshGmshLoader name="meshLoaderSphereCoarse" filename="SphereVolume.msh" />
    <MeshGmshLoader name="meshLoaderSphereSurface" filename="SphereSurface.msh" />
    <!-- Loading the meshes -->
    <MeshGmshLoader name="meshLoaderCoarse" filename="CylinderCoarse.msh" />
    <MeshGmshLoader  name="meshLoaderSurface" filename="CylinderSurface.msh" />

    <!--Defining the first object: Cylinder phantom -->
    <Node name="Cylinder">
    	<!-- Defining the solvers -->
        <EulerImplicitSolver />
        <CGLinearSolver iterations="15" threshold="0" tolerance="1.0e-9"/>
        <!-- Defining the geometry -->
        <Mesh src="@../meshLoaderCoarse"/>
        <!-- Defining mechanics and force fields -->
        <MechanicalObject name="myCylinder" src="@../meshLoaderCoarse" dx="0" dy="0" dz="0" rx="0" ry="0" rz="0" scale="1.0"/>
        <UniformMass totalMass="0.0002"/>
        <TetrahedronFEMForceField name="FEM" youngModulus="600" poissonRatio="0.49" />
        <!--<LinearSolverConstraintCorrection />-->
        <PrecomputedConstraintCorrection />
        <!--Defining the visual model of the cylinder -->
        <Node name="Visu">
            <OglModel name="Visual" src="@../../meshLoaderSurface" />
            <BarycentricMapping />
        </Node>
        <!-- Defining the collision model of the cylinder -->
        <Node name="Collision">
            <Mesh src="@../../meshLoaderSurface"/>
            <MechanicalObject src="@../../meshLoaderSurface"  scale="1.0"/>
            <Triangle />
            <Line/>
            <Point/>
            <BarycentricMapping />
        </Node>
        <!--Adding fixed contraints to place the fixate the model on the floor -->
        <BoxROI name="box1" box="-1 -1 -1  1 0.1 1" />
        <FixedConstraint indices="@box1.indices"/>
    </Node>

    <!--Defining the first object: Cylinder phantom -->
    <Node name="Sphere">
    	<!-- Defining the solvers -->
        <EulerImplicitSolver />
        <CGLinearSolver iterations="15" threshold="0" tolerance="1.0e-9"/>
        <!-- Defining the geometry -->
        <Mesh src="@../meshLoaderSphereCoarse"/>
        <!-- Defining mechanics and force fields -->
        <MechanicalObject name="mySphere" src="@../meshLoaderSphereCoarse" dx="0" dy="5" dz="0" rx="0" ry="0" rz="0" scale="1.0"/>
        <UniformMass totalMass="0.00043"/>
        <TetrahedronFEMForceField name="FEM" youngModulus="600" poissonRatio="0.48" computeGlobalMatrix="false" method="polar"/>
        <!--<LinearSolverConstraintCorrection />-->
        <PrecomputedConstraintCorrection rotations="true" restDeformations="true" recompute="1"/>
        <!--Defining the visual model of the cylinder -->
        <Node name="Visu">
            <OglModel name="Visual" src="@../../meshLoaderSphereSurface" color="red" dy="5" scale="1.0"/>
            <BarycentricMapping input="@.." output="@Visual"/>
        </Node>
        <!-- Defining the collision model of the cylinder -->
        <Node name="Collision">
            <Mesh src="@../../meshLoaderSphereSurface"/>
            <MechanicalObject src="@../../meshLoaderSphereSurface" dy="5"  scale="1.0"/>
            <Triangle />
            <Line/>
            <Point/>
            <BarycentricMapping />
        </Node>
    </Node>
</Node>

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