Elastic Shakedown and Adaptation of the Response in Laterally Impacted Steel Tubes
- 9 March 2010
- journal article
- Published by SAGE Publications in International Journal of Damage Mechanics
- Vol. 20 (3), 400-422
- https://doi.org/10.1177/1056789509359675
Abstract
This article reports some interesting observations on the response of laterally impacted steel tubes, which in some respects have been considered to undergo an elastic shakedown. In an experimental study on the behavior of axially compressed tubes under lateral impacts, it has been noticed that after full development of plastic deformations in the impacted bodies, the structural system ceases to exhibit additional plastic responses. The impacted tubes then exhibit an elastic behavior. It has also been observed that the amplitude of the elastic excitations in the specimens becomes more restricted as the load configuration moves close to a dynamic failure state. With load conditions quite close to the dynamic failure limit, almost no elastic excitation has been perceived from the impacted specimens. Additional numerical and analytical investigations have been carried out on impacted tubes, frames, and nonlinear single-degree of freedom systems and similar results have been obtained. Despite the noncyclic nature of the external loads in these impact cases, a phenomenon similar to elastic shakedown has been observed.Keywords
This publication has 20 references indexed in Scilit:
- Analytical Study of Finite Element Models for FRP Retrofitted Concrete Structure under Blast LoadsInternational Journal of Damage Mechanics, 2008
- A simplified technique for shakedown limit load determinationNuclear Engineering and Design, 2007
- Damage Detection for Framed RCC Buildings using ANN ModelingInternational Journal of Damage Mechanics, 2007
- Coupling Between Mesoplasticity and Damage in High-cycle FatigueInternational Journal of Damage Mechanics, 2007
- Stability and dynamics of a harmonically excited elastic-perfectly plastic oscillatorJournal of Sound and Vibration, 2007
- Time-dependent ratchetting experiments of SS304 stainless steelInternational Journal of Plasticity, 2006
- The steady state responses of s.d.o.f. viscous elasto-plastic oscillator under sinusoidal loadingsJournal of Sound and Vibration, 2004
- NON-LINEAR DYNAMICS OF AN ELASTO–PLASTIC OSCILLATOR WITH KINEMATIC AND ISOTROPIC HARDENINGJournal of Sound and Vibration, 1997
- An Upper Bound on Damage of Elastic-Plastic Structures at ShakedownInternational Journal of Damage Mechanics, 1994
- Zur Plastizität des räumlichen KontinuumsArchive of Applied Mechanics, 1938