Direct comparison of multi and single-phase models depicting the drying process of refractory castables

Autor: M.H. Moreira, S. Dal Pont, R.F. Ausas, T.M. Cunha, A.P. Luz, V.C. Pandolfelli

Publikováno v: Open Ceramics, Vol 6, Iss , Pp 100111- (2021)

Refractory castables are crucial for the production of steel and other materials. Upon heating, pressurization of vapor within their pores is developed, which may lead to cracks and even explosions. Numerical simulations are valuable tools for studyi

Externí odkaz: https://doaj.org/article/6bab7f5bd6474117a4380bb3c11307f1

Towards a single-phase mixed formulation of refractory castables and structural concrete at high temperatures

Autor: Roberto F. Ausas, A.P. Luz, M.H. Moreira, Pedro I. B. G. B. Pelissari, Victor C. Pandolfelli, S. Dal Pont

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Structural materials are broadly used in applications such as nuclear vessels, high-temperature processes, and civil construction. Usually, during their placing and lifespan, they may present free or chemically bonded liquid phases in their structure

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc36e19d6345b6ed274e850748ac312e
http://arxiv.org/abs/2103.14503

Quantification of evolving moisture profiles in concrete samples subjected to temperature gradient by means of rapid neutron tomography: Influence of boundary conditions, hygro‐thermal loading history and spalling mitigation additives

Autor: H. Cheikh Sleiman, Alessandro Tengattini, F. Kisuka, Matthieu Briffaut, S. Dal Pont

Publikováno v: 'Strain ', vol: 56, pages: e12371-1-e12371-14 (2020)

Concrete has a tendency to spall, that is, to eject layers when subjected to high temperatures. This is an erratic phenomenon, and our understanding of the underlying physical process is still limited. A driving process is moisture transfer, whose ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cc6c93ab20c58b07541ba44da5b6e41
https://doi.org/10.1111/str.12371

FEM×DEM multiscale modeling: Model performance enhancement from Newton strategy to element loop parallelization

Autor: S. Dal Pont, Gaël Combe, Denis Caillerie, Albert Argilaga, Jacques Desrues

Publikováno v: International Journal for Numerical Methods in Engineering. 114:47-65

The paper presents a multiscale model based on a FEMxDEM approach, a method that couples Discrete Elements at the micro-scale and Finite Elements at the macro-scale. FEMxDEM has proven to be an effective way to treat real-scale engineering problems

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d7f14f107d1afa199bc7db4fac3b160
https://doi.org/10.1002/nme.5732

Direct comparison of multi and single-phase models depicting the drying process of refractory castables

Autor: Roberto F. Ausas, S. Dal Pont, A.P. Luz, Victor C. Pandolfelli, T.M. Cunha, M.H. Moreira

Publikováno v: Open Ceramics, Vol 6, Iss, Pp 100111-(2021)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Open Ceramics
Open Ceramics, Elsevier, 2021, 6, ⟨10.1016/j.oceram.2021.100111⟩

International audience; Refractory castables are crucial for the production of steel and other materials. Upon heating, pressurization of vapor within their pores is developed, which may lead to cracks and even explosions. Numerical simulations are v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::828872f45d48e14c6375904280c06dc2
https://doi.org/10.1016/j.oceram.2021.100111