Relevance of displacement softening model in discrete element method to investigate structural and grain size scaling effect

Autor: Ran Zhu, Syed Yasir Alam, Ahmed Loukili

Publikováno v: Theoretical and Applied Fracture Mechanics. 123:103706

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2df8a1983e07421c65c78bbebe94ad4c
https://doi.org/10.1016/j.tafmec.2022.103706

Natural hydraulic lime for blended cement mortars: Behavior from fresh to hardened states

Autor: Syed Yasir Alam, Emmanuel Rozière, Ahmed Loukili, A. Aboulayt, Reda Jaafri

Publikováno v: Cement and Concrete Research
Cement and Concrete Research, Elsevier, 2019, 120, pp.52-65. ⟨10.1016/j.cemconres.2019.03.003⟩

This paper presents the influence of natural hydraulic lime (NHL) on the behavior of cement-based materials at fresh and hardened states. Two reference mortars with and without limestone filler (LF) and with water-to-cement ratio of 0.6 were consider

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c5a4a6d82ff45e5a3ae0b7e2bd944f9
https://doi.org/10.1016/j.cemconres.2019.03.003

Experimental approach to investigate creep-damage bilateral effects in concrete at early age

Autor: Ahmed Loukili, Frédéric Grondin, M. Farah, Syed Yasir Alam

Publikováno v: Cement and Concrete Composites. 96:128-137

The concrete structures are under heavy loads once they are set up. The effect of this early loading particularly in terms of creep deformations could be very significant. In order to evaluate the effect of these deformations on the cracking risk of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6d31ace1172f18c616a1612dda7fbe0
https://doi.org/10.1016/j.cemconcomp.2018.11.022

Microscopically informed upscale approach of modelling damage in mortar by considering matrix-to-grain interface and grain micro-fracture characteristics

Autor: Frédéric Grondin, Abderrahmane Rhardane, Syed Yasir Alam

Publikováno v: Theoretical and Applied Fracture Mechanics
Theoretical and Applied Fracture Mechanics, Elsevier, 2020, 109, pp.102725-. ⟨10.1016/j.tafmec.2020.102725⟩

Multiscale modelling of damage in cement-based materials is mostly done through a downscale approach and constitutive laws are developed based on quasi-brittleness or cracking process within these materials. However, the microscopic characteristics o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60c2fb826edc65b9acffcb74688cb5bb
https://hal.archives-ouvertes.fr/hal-03492466

An experimental investigation on the correlation between the aggregate size effect and the structural size effect

Autor: Ran Zhu, Syed Yasir Alam, Ahmed Loukili

Publikováno v: Engineering Fracture Mechanics
Engineering Fracture Mechanics, Elsevier, 2020, 234, pp.107101-. ⟨10.1016/j.engfracmech.2020.107101⟩

Concrete failure properties are significantly affected when the size of the structure changes. This size effect which is due to the presence of fracture process zone led by the aggregate size, has been studied in the literature only for a given concr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d76c526a0428402039e0acd7149372f
https://hal.archives-ouvertes.fr/hal-03490759