CBMX, ROW, S(R)(R) , S(R)(R+1) , S(R)(R+2) , S(R)(R+3) , S(R)(R+4) , S(R)(R+5) , S(R)(R+6)
Specifies preintegrated cross-section stiffness for composite beam sections.

Compatible Products: – | – | Premium | Enterprise | Ent PP | Ent Solver | –


Row number of the matrix.

S(R)(R) , . . . , S(R)(R+6)

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


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


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.

Menu Paths

Main Menu>Preprocessor>Sections>Beam>Composite Sections

Release 18.2 - © ANSYS, Inc. All rights reserved.