Beam Section Options

Advanced Beam Section Options


Poisson's ratio	Effective Poisson's ratio for the section to provide uniform strain in the section because of strain of the beam axis (so that the beam changes cross-sectional area when it is stretched).
Use consistent mass matrix formulation	Use the McCalley-Archer consistent mass matrix based on the cubic interpolation of deflections and quadratic interpolation of rotations instead of a lumped mass formulation.
Transverse shear stiffness	Calculate from Elastic: Calculate the shear stiffness values from the elastic properties. Isotropic: Define a single value of transverse shear stiffness. Orthotropic: Define the shear stiffness of the section in the local directions of the cross-section.


Shear stiffness	Value of the shear stiffness of the section. (Units of force.)
Slenderness compensation	Default: The default value of 0.25 is used for the slenderness compensation factor. Specify: Provide a value for the slenderness compensation factor.


Shear stiffness	K13: Value of the $K_{13}$ shear stiffness of the section. (Units of force.) K23: Value of the $K_{23}$ shear stiffness of the section. (Units of force.)
Slenderness compensation	Default: The default value of 0.25 is used for the slenderness compensation factor. Specify: Provide a value for the slenderness compensation factor.