NUMERICAL SIMULATION ON THE TENSILE STRAIN HARDENING BEHAVIOUR OF ENGINEERED CEMENTITIOUS COMPOSITES (ECC)

Authors

  • Chee Zheng Woo School of Energy, Geoscience, Infrastructure and Society (EGIS), Heriot-Watt University Malaysia, 62200 Putrajaya, Malaysia
  • Wee Teo School of Energy, Geoscience, Infrastructure and Society (EGIS), Heriot-Watt University Malaysia, 62200 Putrajaya, Malaysia https://orcid.org/0000-0003-1924-3670
  • Kazutaka Shirai Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan

DOI:

https://doi.org/10.11113/jurnalteknologi.v84.18452

Keywords:

Engineered cementitious composites (ECC), strain hardening behaviour, finite element modelling

Abstract

Numerical simulation for evaluating tensile strain hardening behaviour of engineered cementitious composites (ECC) materials are extremely limited. This paper presents a finite element (FE) model developed to determine the multiple-cracking and strain hardening behaviour of ECC under uniaxial tension. A nonlinear FE program, ATENA was used in this study. A constitutive law based on individual crack-based model derived by the traction-separation relationship, or also known as tensile function was implemented in the model. Model calibration with parameter modifications were illustrated. The final simulation result predicts accurately the experiment tensile stress strain curves, including the tensile strain hardening response, ultimate tensile strength and tensile strain capacity. This includes validation from ECC specimens tested by various researchers. It has found that accuracy of the model is improved by lowering the crack opening displacement corresponds to the first cracking. The finding from this study would be useful in the future for further parametric analyses and structural optimization design of ECC members.

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Published

2022-09-25

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Section

Science and Engineering

How to Cite

NUMERICAL SIMULATION ON THE TENSILE STRAIN HARDENING BEHAVIOUR OF ENGINEERED CEMENTITIOUS COMPOSITES (ECC). (2022). Jurnal Teknologi, 84(6), 39-50. https://doi.org/10.11113/jurnalteknologi.v84.18452