Zobrazeno 1 - 10
of 469
pro vyhledávání: '"Pellenq Roland"'
Publikováno v:
Journal of Chemical Physics; 11/14/2024, Vol. 161 Issue 18, p1-11, 11p
Autor:
Dragulet, Francis, Goyal, Abhay, Ioannidou, Katerina, Pellenq, Roland J. -M., Del Gado, Emanuela
Publikováno v:
J. Phys. Chem. B 2022, 126, 26, 4977-4989
Ion specificity and related Hofmeister effects, ubiquitous in aqueous systems, can have spectacular consequences in hydrated clays, where ion-specific nanoscale surface forces can determine large scale cohesive, swelling and shrinkage behaviors of so
Externí odkaz:
http://arxiv.org/abs/2204.01631
Autor:
Contreras Rafael Jaimes, Berger Nicolas, Izard Edouard, Douce Jean-François, Koltsov Alexey, Delenne Jean-Yves, Azema Emilien, Nezamabadi Saeid, van Loo Frédéric, Pellenq Roland, Radjai Farhang
Publikováno v:
EPJ Web of Conferences, Vol 140, p 08020 (2017)
We present an experimental and numerical investigation of the mechanical strength of crude iron ore (Hematite) granules in which capillary bonds between primary particles are the source of internal cohesion. The strength is measured by subjecting the
Externí odkaz:
https://doaj.org/article/3a4bce20688f4e93acf2df2e17e35102
Publikováno v:
EPJ Web of Conferences, Vol 140, p 01009 (2017)
We introduce the concept of Potential of Mean Force, PMF, as a way to implement upscaling modeling from the nano-scale to micron-scale. A PMF is a free energy function representing in an effective way the interactions between objects (cement hydrates
Externí odkaz:
https://doaj.org/article/e58e16c545c84087ba58922ebd97ea4f
Publikováno v:
EPJ Web of Conferences, Vol 140, p 02030 (2017)
We use molecular dynamics simulations of frictionless spherical particles to investigate a class of polydisperse granular materials in which the particle size distribution is uniform in particle volumes. The particles are assembled in a box by uniaxi
Externí odkaz:
https://doaj.org/article/3c05ed6341a14845b05402762b3a7a5e
Publikováno v:
EPJ Web of Conferences, Vol 140, p 15027 (2017)
Mechanical behavior of concrete crucially depends on cement hydrates, the “glue” of cement. The design of high performance and more environmentally friendly cements demands a deeper understanding of the formation of the multiscale structure of ce
Externí odkaz:
https://doaj.org/article/2abf9393131a41c5823820c185683448
Publikováno v:
Journal of Chemical Physics; 9/7/2024, Vol. 161 Issue 9, p1-9, 9p
Autor:
Goyal, Abhay, Palaia, Ivan, Ioannidou, Katerina, Ulm, Franz-Josef, Van Damme, Henri, Pellenq, Roland J. -M., Trizac, Emmanuel, Del Gado, Emanuela
Publikováno v:
Sci. Adv. 7, eabg5882 (2021)
Cement is one of the most produced materials in the world. A major player in greenhouse gas emissions, it is the main binding agent in concrete, to which it provides a cohesive strength that rapidly increases during setting. Understanding how such co
Externí odkaz:
http://arxiv.org/abs/2108.03145
Autor:
Monfared, Siavash, Zhou, Tingtao, Andrade, Jose E., Ioannidou, Katerina, Radjai, Farhang, Ulm, Franz-Josef, Pellenq, Roland J. -M.
Publikováno v:
Phys. Rev. Lett. 125, 255501 (2020)
Utilizing a 3D mean-field lattice-gas model, we analyze the effect of confinement on the nature of capillary phase transition in granular aggregates with varying disorder and their inverse porous structures obtained by interchanging particles and por
Externí odkaz:
http://arxiv.org/abs/2008.04201
Autor:
Haist, Michael, Divoux, Thibaut, Krakowiak, Konrad J., Skibsted, Jørgen, Pellenq, Roland J. -M., Müller, Harald S., Ulm, Franz-Josef
From soft polymeric gels to hardened cement paste, amorphous solids under constant load exhibit a pronounced time-dependent deformation called creep. The microscopic mechanism of such a phenomenon is poorly understood in amorphous materials and const
Externí odkaz:
http://arxiv.org/abs/2008.02617