Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Bonamy, Daniel"'
Autor:
Nguyen, Thuy, Bonamy, Daniel
Fracture toughness is the material property characterizing resistance to failure. Predicting its value from the solid structure at the atomistic scale remains elusive, even in the simplest situations of brittle fracture. We report here numerical simu
Externí odkaz:
http://arxiv.org/abs/2410.21839
Autor:
Montiel, Antoine, Nguyen, Thuy, Rountree, Cindy, Geertsen, Valérie, Guenoun, Patrick, Bonamy, Daniel
We examine how disordering joint position influences the linear elastic behavior of lattice materials via numerical simulations in two-dimensional beam networks. Three distinct initial crystalline geometries are selected as representative of mechanic
Externí odkaz:
http://arxiv.org/abs/2206.06845
Autor:
Dubois, Alizée, Bonamy, Daniel
Publikováno v:
Physical Review E , American Physical Society (APS), 2021, 103 (1), pp.013004
We examine theoretically and numerically fast propagation of a tensile crack along unidimensional strips with periodically evolving toughness. In such dynamic fracture regimes, crack front waves form and transport front disturbances along the crack e
Externí odkaz:
http://arxiv.org/abs/2012.15145
Autor:
Lesaine, Arnaud, Bonamy, Daniel, Rountree, Cindy, Gauthier, Georges, Impéror-Clerc, Marianne, Lazarus, Veronique
The process of colloidal drying gives way to particle self-assembly in numerous elds including photonics or biotechnology. Yet, the mechanisms and conditions driving the nal particle arrangement in dry colloidal layers remain elusive. Here, we examin
Externí odkaz:
http://arxiv.org/abs/2012.05539
Autor:
Barés, Jonathan, Bonamy, Daniel
Publikováno v:
Phys. Rev. E 103, 053001 (2021)
We examine the effect of small, spatially localized, excitations applied periodically in different manners, on the crackling dynamics of a brittle crack driven slowly in a heterogeneous solid. When properly adjusted, these excitations are observed to
Externí odkaz:
http://arxiv.org/abs/2010.14807
Autor:
Nguyen, Thuy, Bonamy, Daniel
Publikováno v:
Physical Review Letters, American Physical Society, 2019, 123 (20)
We examine the atomistic scale dependence of material's resistance-to-failure by numerical simulations and analytical analysis in electrical analogs of brittle crystals. We show that fracture toughness depends on the lattice geometry in a way incompa
Externí odkaz:
http://arxiv.org/abs/1910.09343
Autor:
Vincent-Dospital, Tom, Toussaint, Renaud, Santucci, Stéphane, Vanel, Loïc, Bonamy, Daniel, Hattali, Lamine, Cochard, Alain, Flekkøy, Eirik, Måløy, Knut Jørgen
While of paramount importance in material science, the dynamics of cracks still lacks a complete physical explanation. The transition from their slow creep behavior to a fast propagation regime is a notable key, as it leads to full material failure i
Externí odkaz:
http://arxiv.org/abs/1905.07180
Publikováno v:
Phys. Rev. E 100, 023001 (2019)
Very often damage and fracture in heterogeneous materials exhibit bursty dynamics made of successive impulse-like events which form characteristic aftershock sequences obeying specific scaling laws initially derived in seismology: Gutenberg-Richter l
Externí odkaz:
http://arxiv.org/abs/1902.05758
Autor:
Barés, Jonathan, Bonamy, Daniel
Crack growth is the basic mechanism leading to the failure of brittle materials. Engineering addresses this problem within the framework of continuum mechanics, which links deterministically the crack motion to the applied loading. Such an idealizati
Externí odkaz:
http://arxiv.org/abs/1811.03072
Publikováno v:
Soft Matter, Royal Society of Chemistry, 2018
Layers obtained by drying a colloidal dispersion of silica spheres are found to be a good benchmark to test the elastic behaviour of porous media, in the challenging case of high porosities and nano-sized microstructures. Classically used for these s
Externí odkaz:
http://arxiv.org/abs/1804.09421