Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Dalmas, Davy"'
Autor:
Zhang, Bo, de Souza, Mariana, Mulvihill, Daniel M., Dalmas, Davy, Scheibert, Julien, Xu, Yang
Many properties of soft contact interfaces are controlled by the contact area (e.g. friction, contact stiffness and surface charge generation). The contact area increases with the contact age at rest. In contrast, it usually reduces under unidirectio
Externí odkaz:
http://arxiv.org/abs/2410.23050
Publikováno v:
Science, 2024, 383 (6679), pp.200-204
Many devices, including touchscreens and robotic hands, involve frictional contacts. Optimizing these devices requires fine control of the interface's friction law. We lack systematic methods to create dry contact interfaces whose frictional behavior
Externí odkaz:
http://arxiv.org/abs/2402.10960
Autor:
Acito, Vito, Dancette, Sylvain, Scheibert, Julien, Oliver, Cristobal, Adrien, Jérome, Maire, Eric, Dalmas, Davy
Publikováno v:
In European Journal of Mechanics / A Solids September-October 2023 101
Publikováno v:
Bar\'es, J., Dubois, A., Hattali, L., Dalmas, D., & Bonamy, D. (2018). Aftershock sequences and seismic-like organization of acoustic events produced by a single propagating crack. Nature Communications, 9(1), 1253
Brittle fractures of inhomogeneous materials like rocks, concrete, or ceramics are of two types: Nominally brittle and driven by the propagation of a single dominant crack or quasi-brittle and resulting from the accumulation of many microcracks. The
Externí odkaz:
http://arxiv.org/abs/1804.04023
Autor:
Bouttes, David, Lambert, Océane, Claireaux, Corinne, Woelffel, William, Dalmas, Davy, Gouillart, Emmanuelle, Lhuissier, Pierre, Salvo, Luc, Boller, Elodie, Vandembroucq, Damien
Using in-situ synchrotron tomography, we investigate the coarsening dynamics of barium borosilicate melts during phase separation. The 3-D geometry of the two interconnected phases is determined thanks to image processing. We observe a linear growth
Externí odkaz:
http://arxiv.org/abs/1502.03719
Publikováno v:
Physical Review Letters 113, 264301 (2014)
The temporal evolution of mechanical energy and spatially-averaged crack speed are both monitored in slowly fracturing artificial rocks. Both signals display an irregular burst-like dynamics, with power-law distributed fluctuations spanning a broad r
Externí odkaz:
http://arxiv.org/abs/1411.6092
Autor:
Marthelot, Joel, Roman, Benoit, Bico, Jose, Teisseire, Jeremie, Dalmas, Davy, Melo, Francisco
Publikováno v:
Phys. Rev. Lett. 113, 085502 (2014)
Straight cracks are observed in thin coatings under residual tensile stress, resulting into the classical network pattern observed in china crockery, old paintings or dry mud. Here, we present a novel fracture mechanism where delamination and propaga
Externí odkaz:
http://arxiv.org/abs/1408.4831
X-Ray microtomography was used to follow the coarsening of the structure of a ternary silicate glass experiencing phase separation in the liquid state. The volumes, surfaces, mean and Gaussian curvatures of the domains of minority phase were measured
Externí odkaz:
http://arxiv.org/abs/1309.1724
Publikováno v:
International Journal of Fracture,184, pp 93-111 (2013)
Linear Elastic Fracture Mechanics (LEFM) provides a consistent framework to evaluate quantitatively the energy flux released to the tip of a growing crack. Still, the way in which the crack selects its velocity in response to this energy flux remains
Externí odkaz:
http://arxiv.org/abs/1304.6283
Publikováno v:
Proceedings of the National Academy of Sciences 109, 2 (2012) 390-394
Dynamic crack propagation drives catastrophic solid failures. In many amorphous brittle materials, sufficiently fast crack growth involves small-scale, high-frequency microcracking damage localized near the crack tip. The ultra-fast dynamics of micro
Externí odkaz:
http://arxiv.org/abs/1111.2501