Therefore, this course teaches you basic finite element analysis techniques for linear static, normal modes, and buckling analysis of structures using Nastran. Patran is used for pre and post processing whereas Nastran is used for solution. This course provides the foundation required for intermediate and advanced Nastran applications.The PBEAML card is like this: PBEAML 3 1MSCBML0 BAR + + .1000000.1000000 0.0YES 1.000000.1000000.1000000 0.0. (Bar cross section with dim 0.1x0.1 at both ends) I took this file and I replaced all CBEAMS with CBARS, and replaced the PBEAML with this PBARL card: PBARL 3 1MSCBML0 BAR + + .1000000.1000000. This should specify the same element type ...NX Nastran Connection Elements (RBE2, RBE3 and CBUSH) and How Amazingly Useful They Are for FEA Modeling. Objective. This white paper assumes that the reader has the basics of FEA down pat and an inkling of how R-elements work. The objective is to describe in detail how to use R-connections and CBUSH elements correctly and with confidence.Hello!, In fact, nastran do not compute at all neither shear or torsional stresses for cbar/cbeam elements, but not only nastran, in general any FEA codes of type "general purpose" do not compute shear/torsional stresses in bar/beam elements because the assumption for beam elements follows the beam theory where torsion and shear stresses are negligible in comparison with axial + bending ...Mobile app for solving bar and membrane elements and viewing more complex models. AutoFEM Analysis. FEA software which is integrated into AutoCAD 2007-2010, 2012. ... The NX version of Nastran, a finite element analysis (FEA) tool that major manufacturers in multiple industries use. Information about the various modules contained within software.Unlike other Nastran codes, a 6 degree-of-freedom per node formulation is used for all shell elements. CROD Bulk Data Entry Defines a tension-compression-torsion element (ROD) of the structural model.