public void CanCreateGlobalStiffnessMatrixForSpringAlignedToGlobalXAxis()
{
StiffnessHelpers.Assert12x12StiffnessMatrix(SUT,
1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0,
0, 12, 0, 0, 0, 6, 0, -12, 0, 0, 0, 6,
0, 0, 12, 0, -6, 0, 0, 0, -12, 0, -6, 0,
0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 0,
0, 0, -6, 0, 4, 0, 0, 0, 6, 0, 2, 0,
0, 6, 0, 0, 0, 4, 0, -6, 0, 0, 0, 2,
-1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
0, -12, 0, 0, 0, -6, 0, 12, 0, 0, 0, -6,
0, 0, -12, 0, 6, 0, 0, 0, 12, 0, 6, 0,
0, 0, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0,
0, 0, -6, 0, 2, 0, 0, 0, 6, 0, 4, 0,
0, 6, 0, 0, 0, 2, 0, -6, 0, 0, 0, 4);
}
public void CanCreateGlobalStiffnessMatrixForBeamAlignedToGlobalXAxisInReverseOrientation()
{
elementFactory = new ElementFactory(ModelType.Beam1D);
beam = elementFactory.CreateLinear1DBeam(end, start, material, section);
SUT = new Linear1DBernoulliBeamStiffnessMatrixBuilder(beam);
StiffnessHelpers.Assert12x12StiffnessMatrix(SUT,
1, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 12, 0, 6, 0, 0, 0, -12, 0, 6, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 6, 0, 4, 0, 0, 0, -6, 0, 2, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, -12, 0, -6, 0, 0, 0, 12, 0, -6, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 6, 0, 2, 0, 0, 0, -6, 0, 4, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
}
protected void Assert12x12StiffnessMatrix(params double[] expectedValues)
{
StiffnessHelpers.Assert12x12StiffnessMatrix(SUT, expectedValues);
}
