Influence of the Bauschinger Effect on the Distribution of Residual Stresses in a Thin Hollow Hyperbolic Disc under External Pressure

Abstract:

There are materials whose forward flow curve is practically independent of plastic strain (perfect plasticity) but the Bauschinger effect reduces the elastic range with flow reversal. A new model that is capable of describing such behavior of material under plane stress conditions has been recently proposed. An important class of structures in which the state of stress can often be accurately approximated by plane stress conditions is thin hollow discs. It is therefore of interest to use the new model for determining the distribution of residual stresses in thin discs subject to various loading conditions, followed by unloading. This paper presents a solution for the residual stresses and strains in a hollow hyperbolic disc loading by external pressure, followed by unloading.

• Periodical: Materials Science Forum (Volume 972)
• Pages: 105-110
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.972.105
• Online since: October 2019
• Authors: Sergei Alexandrov*, Elena Lyamina, Yeau Ren Jeng
• Keywords: Bauschinger Effect, Hyperbolic Disc, Perfect Forward Plasticity, Plane Stress

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