T. Li
A C2 plasticity model for structural concrete
Li, T.; Crouch, R.S.
Authors
R.S. Crouch
Abstract
Motivated by a requirement to provide a useable model to study the response of pre-stressed concrete nuclear reactor vessels, this paper (i) introduces a new three invariant C2 associated plasticity model, (ii) describes an efficient stress integration algorithm (which includes automatic sub-incrementation, line searching and the use of auxiliary surfaces within the closest point projection method) and (iii) compares stress path simulations against a series of 67 experimental multiaxial tests from the University of Colorado. The conceptually simple model reproduces the main features of the inelastic response under a range of proportional and non-proportional loading regimes. Error measures for the predictions are smaller than those reported by Ju et al. [Ju JW, Simo JC, Pister KS, Taylor RL. A parameter estimation algorithm for inelastic material models. In: Desai CS et al., editors. Proceedings of the second international conference on constitutive laws for engineering materials: theory and applications, vol. II, Tucson, Arizona, USA, 5–8 January, 1987] for their two-invariant C0 modified cap model.
Citation
Li, T., & Crouch, R. (2010). A C2 plasticity model for structural concrete. Computers and Structures, 88(23-24), 1322-1332. https://doi.org/10.1016/j.compstruc.2008.10.009
Journal Article Type | Article |
---|---|
Publication Date | Dec 1, 2010 |
Deposit Date | Oct 14, 2011 |
Journal | Computers and Structures |
Print ISSN | 0045-7949 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 88 |
Issue | 23-24 |
Pages | 1322-1332 |
DOI | https://doi.org/10.1016/j.compstruc.2008.10.009 |
Keywords | Multiaxial plasticity, Three invariant, CPP stress integration, Auxiliary surfaces, Structural concrete. |
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