The restricted influence of kinematic hardening on shakedown loads

The restricted influence of kinematic hardening on shakedown loads. Staat, M. & Heitzer, M. In Proceedings of WCCM V, Fifth World Congress on Computational Mechanics, July 7-12, 2002, Vienna, Austria, pages 10, 2002. ZSCC: NoCitationData[s0]

Paper abstract bibtex

Structural design analyses are conducted with the aim of verifying the exclusion of ratcheting. To this end it is important to make a clear distinction between the shakedown range and the ratcheting range. In cyclic plasticity more sophisticated hardening models have been suggested in order to model the strain evolution observed in ratcheting experiments. The hardening models used in shakedown analysis are comparatively simple. It is shown that shakedown analysis can make quite stable predictions of admissible load ranges despite the simplicity of the underlying hardening models. A linear and a nonlinear kinematic hardening model of two-surface plasticity are compared in material shakedown analysis. Both give identical or similar shakedown ranges. Structural shakedown analyses show that the loading may have a more pronounced effect than the hardening model.

@inproceedings{staat_restricted_2002,
	title = {The restricted influence of kinematic hardening on shakedown loads},
	copyright = {All rights reserved},
	url = {http://opus.bibliothek.fh-aachen.de/opus/volltexte/2005/79/},
	abstract = {Structural design analyses are conducted with the aim of verifying the exclusion of ratcheting. To this end it is important to make a clear distinction between the shakedown range and the ratcheting range. In cyclic plasticity more sophisticated hardening models have been suggested in order to model the strain evolution observed in ratcheting experiments. The hardening models used in shakedown analysis are comparatively simple. It is shown that shakedown analysis can make quite stable predictions of admissible load ranges despite the simplicity of the underlying hardening models. A linear and a nonlinear kinematic hardening model of two-surface plasticity are compared in material shakedown analysis. Both give identical or similar shakedown ranges. Structural shakedown analyses show that the loading may have a more pronounced effect than the hardening model.},
	booktitle = {Proceedings of {WCCM} {V}, {Fifth} {World} {Congress} on {Computational} {Mechanics}, {July} 7-12, 2002, {Vienna}, {Austria}},
	author = {Staat, Manfred and Heitzer, Michael},
	editor = {H.A. Mang F.G. Rammerstorfer, J Eberhardteiner},
	year = {2002},
	note = {ZSCC: NoCitationData[s0]},
	keywords = {linear kinematic hardening, material shakedown, nonlinear kinematic hardening, ratcheting, shakedown},
	pages = {10},
}

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