4.3 PLANE STRESS TRIANGLE NO.3 WITH 6 NODES
This is a simple, triangular plane stress element with complete square shape functions. Pay attention to edge loads, cf. chapter 3.4.
Input:
CAD (see chapter 2.7.2): 1-4-2-5-3-6-1
> KFLAG for cartesian (0) or polar coordinates (1)
> 2 degrees of freedom for each node
> Element type is 3
> 6 nodes per element
> Cross-section parameter QPARA is the element thickness
> Integration order INTORD: any order, has no influence
> KFLAG = 0: Calculation of SIGXX, SIGYY and TAUXY
> KFLAG = 1: Additional calculation of SIGRR, SIGTT
and TAURT
> Reduced stress flag ISFLAG:
0 = no calculation of reduced stresses
1 = von Mises stresses
Results:
Displacements into X and Y
Stresses: The stresses are calculated in the element's
center of gravity. The coordinates of the center of gravity are
thus printed. For KFLAG = 1 the radial stresses SIGRR, the tangential
stresses SIGTT and the accompanying shear stresses SIGRT are computed
additionally (makes only sense if a rotational-symmetric structure
is available). For easier orientation the respective radiuses
and angles of the center of gravity are printed. Optional von
Mises stresses in the center of gravity.
Nodal forces in X and Y for each element and each node.