Abstract
The effect of kinematic hardening behavior on the shakedown behaviors of structure has been investigated by performing shakedown analysis for some specific problems. The results obtained only show that the shakedown limit loads of structures with kinematic hardening model are larger than or equal to those with perfectly plastic model of the same initial yield stress. To further investigate the rules governing the different shakedown behaviors of kinematic hardening structures, the extended shakedown theorem for limited kinematic hardening is applied, the shakedown condition is then proposed, and a general analytical solution for the structural shakedown limit load is thus derived. The analytical shakedown limit loads for fully reversed cyclic loading and non-fully reversed cyclic loading are then given based on the general solution. The resulting analytical solution is applied to some specific problems: a hollow specimen subjected to tension and torsion, a flanged pipe subjected to pressure and axial force and a square plate with small central hole subjected to biaxial tension. The results obtained are compared with those in literatures, they are consistent with each other. Based on the resulting general analytical solution, rules governing the general effects of kinematic hardening behavior on the shakedown behavior of structure are clearly.
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Supported by National Science and Technology Major Project of China (Grant No. 2013ZX04003031), National Natural Science Foundation of China(Grant No. 51575474), Hebei Provincial College Innovation Team Leader Training Program of China(Grant No. LJRC012), and Hebei Provincial Natural Science Foundation of China(Grant No. E2015203223)
GUO Baofeng, born in 1958, is currently a professor at Yanshan University, China. He received his PhD degree from Yanshan University, China, in 2001. His research interests include analysis and design for the frame of hydraulic press and stamping process.
ZOU Zongyuan, born in 1986, is currently a PhD candidate at Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of Education, Yanshan University, China. She received her bachelor degree from Yanshan University, China, in 2009. Her main research interest is strength analysis for the frame of hydraulic press.
JIN Miao, born in 1968, is currently a professor at Yanshan University, China. He received his PhD degree from Yanshan University, China, in 2000. His research interests include analysis and design for the frame of hydraulic press and forging process.
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Guo, B., Zou, Z. & Jin, M. General analytical shakedown solution for structures with kinematic hardening materials. Chin. J. Mech. Eng. 29, 944–953 (2016). https://doi.org/10.3901/CJME.2016.0304.025
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DOI: https://doi.org/10.3901/CJME.2016.0304.025