Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Bonamy D."'
Publikováno v:
EPJ Web of Conferences, Vol 6, p 39010 (2010)
Externí odkaz:
https://doaj.org/article/a3cd69821717422b8f300c4767c6bfc3
Publikováno v:
EPJ Web of Conferences, Vol 6, p 39011 (2010)
We present the results of recent dynamic fracture experiments [Scheibert et al., Phys. Rev. Lett. 104 (2010) 045501] on polymethylmethacrylate, the archetype of nominally brittle materials, over a wide range of crack velocities. By combining velocity
Externí odkaz:
https://doaj.org/article/f2ae8b4c8adc4b679774e77271cfd3fa
Publikováno v:
In Journal of the Mechanics and Physics of Solids February 2020 135
Autor:
Bonamy, D.
Publikováno v:
Journal of Physics D 42, 214014 (2009)
Stress enhancement in the vicinity of brittle cracks makes the macro-scale failure properties extremely sensitive to the micro-scale material disorder. Therefore: (i) Fracturing systems often display a jerky dynamics, so-called crackling noise, with
Externí odkaz:
http://arxiv.org/abs/0907.3353
Publikováno v:
P.-P. Cortet, D. Bonamy, F. Daviaud, O. Dauchot, B. Dubrulle, M. Renouf, EPL 88 14001 (2009)
We confront a recent visco-plastic description of dense granular flows [P. Jop et al, Nature, {\bf 441} (2006) 727] with multi-directional inhomogeneous steady flows observed in non-smooth contact dynamics simulations of 2D half-filled rotating drums
Externí odkaz:
http://arxiv.org/abs/0904.4679
Publikováno v:
J. of Phys.: Cond. Matter 15 p.S2377 (2003)
We have studied the low speed fracture regime for different glassy materials with variable but controlled length scales of heterogeneity in a carefully mastered surrounding atmosphere. By using optical and atomic force microscopy (AFM) techniques we
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302607
Autor:
Bonamy, D., Mills, P.
Publikováno v:
EPL 63, 42 (2003)
Considering recent results revealing the existence of multi-scale rigid clusters of grains embedded in granular surface flows, i.e. flows down an erodible bed, we describe here the surface flows rheology through a non-local constitutive law. The pred
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212430
Autor:
Celarie, F., Prades, S., Bonamy, D., Dickele, A., Ferrero, L., Bouchaud, E., Guillot, C., Marliere, C.
Publikováno v:
Appl. Surf. Sci. 212-213 p.92 (2003)
We have studied the low speed fracture regime for different glassy materials with variable but controlled length scales of heterogeneity in a carefully mastered surrounding atmosphere. By using optical and atomic force (AFM) microscopy techniques we
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207583
Publikováno v:
Phys. Rev. Lett. 90 p.075504 (2003)
We report in situ Atomic Force Microscopy experiments which reveal the presence of nanoscale damage cavities ahead of a stress-corrosion crack tip in glass. Their presence might explain the departure from linear elasticity observed in the vicinity of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207449
Publikováno v:
Physical Review Letters 89, 034301 (2002)
We investigate steady granular surface flows in a rotating drum and demonstrate the existence of rigid clusters of grains embedded in the flowing layer. These clusters are fractal and their size is power-law distributed from the grain size scale up t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109375