artisynth.core.materials

Class FemMaterialTest

java.lang.Object

maspack.util.UnitTest

artisynth.core.materials.FemMaterialTest

public class FemMaterialTest
extends UnitTest

Tests FemMaterials by checking that the computed tangent matrix is consistent with the value determined via numeric differentiation. Background material is provided in Bonet and Wood, "Nonlinear Continuum Mechanics for Finite Element Analysis".

Method Summary

Modifier and Type	Method and Description
static void	main(java.lang.String[] args)
void	test() Test method executed by runtest().
void	testTangent(MaterialBase mat, double tol) Tests a material by comparing the computed tangent matrix with the numeric derivative of the same.
void	testTangent(MaterialBase mat, Matrix3d F0, double tol)

Methods inherited from class maspack.util.UnitTest

check, checkEquals, checkEquals, checkEquals, checkEquals, checkEquals, checkEquals, checkEquals, checkEquals, checkNormedEquals, checkNormedEquals, getSilent, printUsageAndExit, runtest, setSilent

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

testTangent

public void testTangent(MaterialBase mat,
                        double tol)

Tests a material by comparing the computed tangent matrix with the numeric derivative of the same.

Parameters:

mat - material to test

tol - tolerance by which the computed and numeric tangents should match. Typically, this should be around 1e-8.

testTangent

public void testTangent(MaterialBase mat,
                        Matrix3d F0,
                        double tol)

test

public void test()

Test method executed by runtest().

Overrides:

test in class UnitTest

main

public static void main(java.lang.String[] args)