Qualitative criteria in non-linear dynamic buckling and stability of autonomous dissipative systems

 
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1996 (EN)
Qualitative criteria in non-linear dynamic buckling and stability of autonomous dissipative systems (EN)

Kounadis, AN (EN)

N/A (EN)

A general qualitative approach for dynamic buckling and stability of autonomous dissipative structural systems is comprehensively presented. Attention is focused on systems which under the same statically applied loading exhibit a limit point instability or an unstable branching point instability with a non-linear fundamental path. Using the total energy equation, the theory of point and periodic attractors of the basin of attraction of a stable equilibrium point, of local and global bifurcations, of the inset and outset manifolds of a saddle and of the geometry of the channel of motion, the stability of the fundamental equilibrium path and the mechanism of dynamic buckling are thoroughly discussed. This allows us to establish useful qualitative criteria leading to exact, approximate and upper/lower bound buckling estimates without integrating the highly non-linear initial-value problem. The individual and coupling effect of geometric and material non-linearities of damping and mass distribution on the dynamic buckling load are also examined. A comparison of the results of the above qualitative analysis with those obtained via numerical simulation is performed on several two- and three-degree-of-freedom models of engineering importance. Copyright (C) 1996 Published by Elsevier Science Ltd. (EN)

journalArticle

Dissipative Structure (EN)
Damping (EN)
Basin of Attraction (EN)
Lower Bound (EN)
Autonomous dissipative systems (EN)
Equilibrium Point (EN)
Loads (forces) (EN)
Qualitative Analysis (EN)
Approximation theory (EN)
Bifurcation (mathematics) (EN)
Buckling (EN)
Initial Value Problem (EN)
Branch Point (EN)
Qualitative criteria (EN)
Dynamic response (EN)
Stability (EN)
Computer simulation (EN)
Numerical methods (EN)
Numerical Simulation (EN)
Mass distribution (EN)
Non-linear Dynamics (EN)
Geometry (EN)
Structures (built objects) (EN)
Total energy equation (EN)
Degree of Freedom (EN)
Degrees of freedom (mechanics) (EN)
Equilibrium path (EN)
Differential equations (EN)
Material non linearities (EN)
Global Bifurcation (EN)
Dissipative System (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

International Journal of Non-Linear Mechanics (EN)

1996


PERGAMON-ELSEVIER SCIENCE LTD (EN)



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