<TetrahedronElasticForce />

Doxygen: SofaCaribou::forcefield::TetrahedronElasticForce

Implementation of a corotational linear elasticity forcefield for tetrahedral topologies.

Requires a mechanical object. Requires a topology container.

Attribute	Format	Default	Description
printLog	bool	false	Output informative messages at the initialization and during the simulation.
youngModulus	float	1000	Young’s modulus of the material
poissonRatio	float	0.3	Poisson’s ratio of the material
corotated	bool	true	Whether or not to use corotated elements for the strain computation. The rotation is viewed as constant on the element and is extracted at its center point.
topology_container	path		Path to a topology container (or path to a mesh) that contains the hexahedral elements.

Quick example

XML

<Node>
    <RegularGridTopology name="grid" min="-7.5 -7.5 0" max="7.5 7.5 80" n="9 9 21" />
    <MechanicalObject src="@grid" />
    <HexahedronSetTopologyContainer name="hexahedral_topology" src="@grid" />
    <TetrahedronSetTopologyContainer name="tetrahedral_topology" />
    <TetrahedronSetTopologyModifier />
    <Hexa2TetraTopologicalMapping input="@hexahedral_topology" output="@tetrahedral_topology" />
    <TetrahedronElasticForce topology_container="@tetrahedral_topology" youngModulus="3000" poissonRatio="0.49" corotated="1" printLog="1" />
</Node>

Python

node.addObject("RegularGridTopology", name="grid", min=[-7.5, -7.5, 0], max=[7.5, 7.5, 80], n=[9, 9, 21])
node.addObject("MechanicalObject", src="@grid")
node.addObject("HexahedronSetTopologyContainer", name="hexahedral_topology", src="@grid")
node.addObject('TetrahedronSetTopologyContainer', name='tetrahedral_topology')
node.addObject('TetrahedronSetTopologyModifier')
node.addObject('Hexa2TetraTopologicalMapping', input='@hexahedral_topology', output='@tetrahedral_topology')
node.addObject("TetrahedronElasticForce", topology_container="@tetrahedral_topology", youngModulus=3000, poissonRatio=0.49, corotated=True, printLog=True)

Available python bindings

None at the moment.