Accurately and explicitly simulating distinct tensile and compressive behaviors of various concretes with new elastoplasticity model

Abstract

Purpose

This paper aims to present a direct analysis to demonstrate why markedly different tensile and compressive behaviors of concretes could not be simulated with the Drucker–Prager yield criterion.

Design/methodology/approach

This study proposed an extended form of the latter for establishing a new elastoplasticity model with evolving yield strengths.

Findings

Explicit closed-form solutions to non-symmetric tensile and compressive responses of uniaxial specimens at finite strain are for the first time obtained from hardening to softening.

Originality/value

With such exact solutions, the yield strengths in tension and compression can be explicitly prescribed by uniaxial tensile and compressive stress-strain functions. Then, the latter two are further provided in explicit forms toward accurately simulating tensile and compressive behaviors. Numerical examples are supplied for meso-scale heterogeneous concrete (MSHC) and high-performance concrete (HPC), etc. Model predictions are in good agreement with test data.

Citation

Liu, Q.-P., Kang, J., Tan, L.-X., Wang, S.-Y., Bruhns, O. and Xiao, H. (2023), "Accurately and explicitly simulating distinct tensile and compressive behaviors of various concretes with new elastoplasticity model", Multidiscipline Modeling in Materials and Structures, Vol. 19 No. 6, pp. 1363-1375. https://doi.org/10.1108/MMMS-07-2023-0220