Journal article

Uncertainty quantification of the mechanical properties of lightweight concrete using micromechanical modelling

T Nguyen, A Ghazlan, T Nguyen, HT Thai, T Ngo

International Journal of Mechanical Sciences | Elsevier Inc. | Published : 2020

Abstract

This paper presents a micromechanical modelling framework for analysing the effects of microstructural uncertainties on the mechanical properties of heterogeneous materials. Specialised to lightweight concrete, the proposed framework addresses numerous microstructural uncertainties including the random size, spatial distribution and volume fraction of lightweight expanded polystyrene (EPS) inclusions, as well as the variation of cement matrix properties. A ”taking-placing” algorithm was used to realistically generate three-dimensional, heterogeneous microstructures of EPS concrete with EPS particles embedded into the cement matrix. The nonlinear behaviour of the cement matrix and EPS particl..

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Grants

Awarded by Australian Research Council


Funding Acknowledgements

This work was mainly supported by the CRC-P for Advanced Manufacturing of High Performance Building Envelope project, funded by the CRC-P program of the Department of Industry, Innovation and Science, Australia, and the Asia Pacific Research Network for Resilient and Affordable Housing (APRAH) grant, funded by the Australian Academy of Science, Australia. This work was also supported by the ARC Training Centre for Advanced Manufacturing of Prefabricated Housing (ARC IC150100023) and ARC Discovery Project (ARC DP170100851) at the University of Melbourne.