Evaluating compressive mechanical LDPM parameters based on an upscaled multiscale approach

Evaluating compressive mechanical LDPM parameters based on an upscaled multiscale approach

Lifshitz Sherzer, G. (Ben-Gurion University of the Negev)
Schlangen, E. (TU Delft Microlab)
Ye, G. (TU Delft Microlab)
Gal, A. E. (Ben-Gurion University of the Negev)

2020

We propose an upscaled methodology for evaluating the compressive parameters of the Lattice Discrete Particle Model (LDPM) for a multiscale analysis of concrete structures. This methodology is based on mechanical and chemical models on a wide range of concrete scales. We show that the compressive mechanical parameters are related mainly to material compaction that occurs at the scale of cement paste, the scale containing porosity properties. Therefore, these compressive LDPM parameters are subsequently evaluated based on chemical and mechanical simulations at the cement paste level. Finally, the suggested methodology was verified and validated.

Fracture of concrete
Lattice model
Multiscale modelling
Pore collapse
Upscaling procedure

http://resolver.tudelft.nl/uuid:b3214df8-c3f9-4e92-b315-3abffd6cbb70

https://doi.org/10.1016/j.conbuildmat.2020.118912

2020-10-10

0950-0618

Construction and Building Materials, 251

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2020 G. Lifshitz Sherzer, E. Schlangen, G. Ye, A. E. Gal