A C-2 plasticity model for structural concrete

作者：Li Tianbai; Crouch Roger^*

来源：Computers & Structures, 2010, 88(23-24): 1322-1332.

DOI：10.1016/j.compstruc.2008.10.009

• Multiaxial plasticity
• Three invariant
• CPP stress integration
• Auxiliary surfaces
• Structural concrete

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 C-2 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

• 出版日期2010-12