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Rectangular beam with elastic properties for deformation

**Library:**Simscape / Multibody / Body Elements / Flexible Bodies / Beams

The Flexible Rectangular Beam block models a slender beam with a rectangular cross-section that can be solid or hollow. The rectangular beam can have small and linear deformations. These deformations include extension, bending, and torsion. The block calculates the beam cross-sectional properties, such as the axial, flexural, and torsional rigidities, based on the geometry and material properties that you specify.

The geometry of the rectangular beam is an extrusion of its cross-section. The beam
cross-section, defined in the *xy*-plane, is extruded along
the *z*-axis. To define the cross-section, you can specify
its dimensions in the **Geometry** section of the block dialog
box. The figure shows a solid beam and a hollow beam. The reference frame is located at the
centroid of the beam.

Flexible beams are assumed to be made of a homogeneous, isotropic, and linearly elastic
material. You can specify the beam's density, Young’s modulus, and Poisson’s ratio or shear
modulus in the **Stiffness and Inertia **section of the block
dialog box. Additionally, this block supports two damping methods and a discretization option
to increase the accuracy of the modeling. For more information, see Overview of Flexible Beams.

Flexible Angle Beam | Flexible Channel Beam | Flexible Cylindrical Beam | Flexible I Beam | Flexible T Beam | General Flexible Beam | Extruded Solid | Reduced Order Flexible Solid | Rigid Transform