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Analysis Type:
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Large Deformation Analysis
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Model Type:
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3D
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Reference:
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Argyris, J.H., and Symeonidis, Sp., "Nonlinear Finite Element Analysis of Elastic Systems Under Nonconservative Loading Natural Formulation Part I. Quasistatic Problems," Computer Methods in Applied Mechanics and Engineering, 26 (1981), pp75–123.
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Description:
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A hinged, right-angle frame is constrained in translation at the upper right and lower left corners. It is subjected to a nonconservative downward load 96 cm from the upper right constraint. The load is simulated using a pressure load applied over a small area. Calculate the lateral and vertical displacements at the load application point.
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Element Type: | solid (56) | |
Units: | cm, N | |
Dimensions: | length: 120 width: 3 | depth: 2 |
Material Properties: | Mass Density: 0 Cost Per Unit Mass: 0 Young's Modulus: 7.2e6 | Poisson's Ratio: 0.3 Thermal Expansion: 0 Conductivity: 0 |
Constraints: | at upper right and lower left corners: fixed in translation | |
Loads: | Location/Magnitude: | Distribution: | Spatial Variation: |
vertical | 15 kN over 3 cm2 applied at 96 cm from the upper right constraint | pressure | uniform |
Displacements at the load application point | Theory | Structure | % Difference |
Lateral Displacement (x) | 3.5 | 3.88 | 10% |
Vertical Displacement (y) | 17.0 | 16.4 | 3.5% |
Convergence: SPA RMS Stress Error Estimates: 0.3 % | Max P: 7 | No. Equations: 3912 | |