Тест 3.9 Geometrically nonlinear problem with rods of different stiffness
Verification of the LIRA-FEM software / Тест 3.9 Geometrically nonlinear problem with rods of different stiffness / Analytical solution: G. N. Vanderplaats, Numerical Optimization Techniques for Engineering Design with Applications, McGraw-Hill Book Co., Inc., New York, NY, 1984, pp. 72-73, ex. 3-1.
Analytical solution:: G. N. Vanderplaats, Numerical Optimization Techniques for Engineering Design with Applications, McGraw-Hill Book Co., Inc., New York, NY, 1984, pp. 72-73, ex. 3-1.
Geometry:
|
l = 10 см. |
Material characteristics: k1 = 8 Н/см; k2 = 1 Н/см.
Boundary conditions: u1 = v1 = u2 = v2 = 0.
Stresses: F = 5√2 Н.
CALCULATION RESULTS:
|
Point |
The desired value |
Analytical solution |
Calculation results (LIRA) |
Uncertainty,% |
|
2 |
Moving u2, см |
8,631 |
8,654 |
0,27 |
|
2 |
Moving v2, cм |
4,533 |
4,533 |
0 |
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