BeamElementShearDiagram.m BeamElementStiffness.m BilinearQuadAssemble.m BilinearQuadElementArea.m BilinearQuadElementPStresses.m BilinearQuadElementStiffness2.m BilinearQuadElementStiffness.m BilinearQuadElementStresses.m BeamAssemble.m BeamElementForces.m BeamElementMomentDiagram.m