cbmx

CrossSections.cbmx(row='', s_r__r='', s_r__rplus1='', s_r__rplus2='', s_r__rplus3='', s_r__rplus4='', s_r__rplus5='', s_r__rplus6='', **kwargs)

Specifies preintegrated cross-section stiffness for composite beam sections.

Mechanical APDL Command: CBMX

Parameters:

rowstr

Row number of the matrix.

s_r__rstr

Upper triangle of the cross-section stiffness matrix [S].

s_r__rplus1str

Upper triangle of the cross-section stiffness matrix [S].

s_r__rplus2str

Upper triangle of the cross-section stiffness matrix [S].

s_r__rplus3str

Upper triangle of the cross-section stiffness matrix [S].

s_r__rplus4str

Upper triangle of the cross-section stiffness matrix [S].

s_r__rplus5str

Upper triangle of the cross-section stiffness matrix [S].

s_r__rplus6str

Upper triangle of the cross-section stiffness matrix [S].

Notes

The behavior of beam elements is governed by the generalized-stress/generalized-strain relationship of the form :

\[equation not available\]

The cbmx command, one of several composite beam section commands, specifies the cross-section stiffness matrix (submatrix [ S ] data) for a composite beam section. The section data defined is associated with the section most recently defined ( sectype ) at the specified temperature ( cbtmp ).

Unspecified values default to zero.

Related commands are cbtmp, cbte, and cbmd.

For complete information, see Using Preintegrated Composite Beam Sections