4.2 BEAM NO.2 WITH 2 NODES IN SPACE
Beam element with any symmetric profile (no slanting bend) with
the restriction that the local y-y axis must be parallel to the
global X-Y coordinate system. The profile values are provided
in Z88I1.TXT. Thus, you can use any symmetric
profile in contrast to other FEA programs which sometimes incorporate
a variety of different special beam and profile subroutines without
matching all symmetric profiles as necessary . The element matches
exactly Bernoulli's bend theory and Hooke's law. It uses no approximate
solution as for the continuum elements.
Input:
CAD (see chapter 2.7.2): Line
from node 1 to node 2
> KFLAG for cartesian (0) or cylindrical coordinates (1)
> Set beam flag IBFLAG to 1
> 6 degrees of freedom in a node (Attention: DOF5 (not right hand rule), see below)
> Element type is 2
> 2 nodes per element
At the material information lines:
> Integration order INTORD is arbitrary (1..4), has no influence
> Cross-sectional area QPARA
> Second moment of inertia RIYY (bending around y-y axis)
> Max. distance EYY from neutral axis y-y
> Second moment of inertia RIZZ (bending around z-z axis)
> Max. distance EZZ from neutral axis z-z
> Second moment of area (torsion) RIT
> Second modulus (torsion) WT
Beams No.2 have no influence. However, Z88I3.TXT must exist (with
any content).
Results:
Deflections in X, Y and Z and rotations around X, Y and
Z. Attention DOF5 (not right hand rule), see below
Stresses: SIGXX, TAUXX: Direct stress, shear stress, SIGZZ1,
SIGZZ2: Bending stress around z-z for node 1 and node 2, SIGYY1
SIGYY2: Bending stress around y-y for node 1 and node 2
Nodal forces in X, Y and Z and nodal moments around X,
Y and Z for each element and each node.