Incremental viscoelasticity at finite strains for the modelling of 3D concrete printing

Autor: B. Nedjar

Publikováno v: Computational Mechanics
Computational Mechanics, 2021, 11 p. ⟨10.1007/s00466-021-02091-5⟩

Within a 3D concrete printing process, the fresh concrete is aging due to hydration. One of the consequences from the purely mechanical point of view is that its constitutive relation must be defined in rate form. This restriction is taken into accou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::432b688eeaa599e748eff00e24f6bd1d
https://doi.org/10.1007/s00466-021-02091-5

Round-Robin Modelling of the Load-bearing Capacity of Slender Columns by Using Classical and Advanced Non-linear Numerical and Analytical Prediction Tools

Autor: Ana Mandić Ivanković, Mladen Srbić, Pierre Marchand, Jakub Dobrý, Alfred Strauss, Vladimír Benko, José C. Matos, André Orcesi, Roman Wan-Wendner, Michael Hauser, Krešimir Ninčević, Dominik Skokandić, Mohammad El Hajj Diab, Neryvaldo Galvão

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Structural engineering international
Structural engineering international, 2020, 19,p. ⟨10.1080/10168664.2020.1740069⟩

Non-linear finite element analyses have intrinsic model and user factors that influence the results of the analyses. However, non-linear finite element analysis can provide a tool to assess safety using realistic descriptions of material behaviour wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5be99efd2ce7837d22aa204d98c4ef1d
https://doi.org/10.1080/10168664.2020.1740069

Modeling the sulfate attack induced expansion of cementitious materials based on interface-controlled crystal growth mechanisms

Autor: Yushan Gu, Patrick Dangla, Renaud-Pierre Martin, Othman Omikrine Metalssi, Teddy Fen-Chong

Publikováno v: Cement and Concrete Research
Cement and Concrete Research, Elsevier, 2022, 152, 15 p. ⟨10.1016/j.cemconres.2021.106676⟩
Gu, Y, Dangla, P, Martin, R-P, Omikrine-Metalssi, O & Fen-Chong, T 2022, ' Modeling the sulfate attack induced expansion of cementitious materials based on interface-controlled crystal growth mechanisms ', Cement and Concrete Research, vol. 152, 106676 . https://doi.org/10.1016/j.cemconres.2021.106676

External sulfate attack (ESA) and delayed ettringite formation (DEF) are well-known concrete degradation phenomena induced by ettringite crystallization. This paper proposes a poromechanical model based on the surface-controlled ettringite growth mec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95b4dfabb13b722d9014cbf9b796ceb9
https://hal.archives-ouvertes.fr/hal-03515314

Bathymetric Mapping of Shallow Water in Thaw Lakes on the North Slope of Alaska with Spaceborne Imaging Radar

Autor: Kozlenko, Nickolai, Jeffries, Martin O.

Publikováno v: Arctic, 2000 Sep 01. 53(3), 306-316.

Externí odkaz: https://www.jstor.org/stable/40511913

On a geometrically nonlinear incremental formulation for the modeling of 3D concrete printing

Autor: B. Nedjar

Publikováno v: Mechanics Research Communications
Mechanics Research Communications, 2021, 116, 7 p. ⟨10.1016/j.mechrescom.2021.103748⟩

Of interest in this paper is a modeling framework when constitutive relations are given in incremental form. This is particularly true for aging concretes due to hydration. Furthermore, having in mind applications to 3D concrete printing, geometrical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56de13ba8b3bd2cad394a118ba718059
https://hal.archives-ouvertes.fr/hal-03350680/file/doc00033675.pdf