Reference : F. P. Beer, E. R. Johnston Jr., D. F. Mazurek, P. J. Cornwell, E. R. Eisenberg, Vector Mechanics for Engineers, Statics and Dynamics, New York, McGraw-Hill Co., 1962, p. 47.

Problem sketch

Type of created task

Statial truss or solid array (X, Y , Z ).

Initial data:

;

Point 1 coordinates. ; ; ;

Point 2 coordinates. ; ; ;

Point 3 coordinates. ; ; ;

Point 4 coordinates. ; ; ;

Material properties

Isotropic elastic: ,

Boundary conditions

At points 1, 2 and 3: ;

Loading:

;

Task description:

System was modeled using bar FE (FE 4)

Calculation results:

Table 1.5

Target value	Analytical solution	Solution results by LIRA 10.4	Deviation, %
,H	10.39	10.39	0
,H	22.91	22.91	0
,H	31.18	31.18	0