4

4.9 TRUSS NO.9 IN PLANE

The truss element No.9 can take any location in the X-Y plane. It is the simplest element in Z88 and is calculated extremely fast. The truss elements matches Hooke's law exactly.

Input:

CAD (see chapter 2.7.2): Line from node 1 to node 2

Z88I1.TXT

> KFLAG for cartesian (0) or polar coordinates (1)

> 2 degrees of freedom for each node

> Element type is 9

> 2 nodes per element

> Cross-section parameter QPARA is the cross-sectional area of the truss

Z88I3.TXT

Trusses No.9 have no influence. However, Z88I3.TXT must exist (with any content).

Results:

Displacements in X andY

Stresses: Normal stresses

Nodal forces in X and Y for each element and each node.