Paper Title:

Counterintuitive Dynamic Behavior in Elastic-Plastic Structures

Periodical Advanced Materials Research (Volume 428)
Main Theme Materials Science and Engineering Technology
Chapter Chapter 1: Materials Science and Engineering
Edited by Gary Yang
Pages 47-51
DOI 10.4028/www.scientific.net/AMR.428.47
Citation Yong Gang Zhao et al., 2012, Advanced Materials Research, 428, 47
Online since January 2012
Authors Yong Gang Zhao, Xiao Peng Yan, Gui Tong Yang
Keywords Counterintuitive Phenomena, Elastic-Plastic Circular Plate, Entropy, Lyapunov Stability, Pulse Loading, Sensitivity
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The counterintuitive phenomena of elastic, perfectly plastic beam, circular plate and square plate are investigated numerically and experimentally. A new unstable slot and asymmetry of dynamic response of beam are revealed. The unsteady areas and uncertainty of response are observed numerically. At the end, the law of thermodynamics and the theorem of Lyapunov instability are employed to state the formation mechanism of counterintuitive behavior.