Planar Truss

Objective

To verify the truss element when applied to a two-dimensional structure.

Physical Problem

The planar truss structure in Fig. A.21 is considered.

Finite Element Model

Nine 2-node truss elements are sufficient to model this problem.

Solution Results

The theoretical displacement solution is given in [1] p. 257. ADINA gives the exact theoretical solution.
Nodal displacements (10-3 feet):

Referance

[1] Tuma, J.J. and Munshi, R.K., Theory and Problems of Advanced Structural Analysis, Schaum's Outline Series, McGraw-Hill.