Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Herrmann, Hans J."'
Autor:
Vetter, Roman, Sigg, Stephan, Singer, Herman M., Kadau, Dirk, Herrmann, Hans J., Schneebeli, Martin
Publikováno v:
EPL 89 (2010) 26001
A Monte Carlo algorithm to simulate the isothermal recrystallization process of snow is presented. The snow metamorphism is approximated by two mass redistribution processes, surface diffusion and sublimation-deposition. The algorithm is justified an
Externí odkaz:
http://arxiv.org/abs/2007.15379
We propose a method for the simulation of particle fragmentation based on the calculation of the energy landscape inside the particle. The landscape of strain energy is calculated in terms of internal stress using the principles of damage and fractur
Externí odkaz:
http://arxiv.org/abs/2003.14067
Publikováno v:
Phys. Rev. Lett. 123, 058002 (2019)
We report on the buckling and subsequent collapse of orthotropic elastic spherical shells under volume and pressure control. Going far beyond what is known for isotropic shells, a rich morphological phase space with three distinct regimes emerges upo
Externí odkaz:
http://arxiv.org/abs/1903.09476
Autor:
Iliev, Pavel S., Giacomazzi, Elena, Wittel, Falk K., Mendoza, Miller, Haselbacher, Andreas, Herrmann, Hans J.
We investigate the mechanical behavior of a confined granular packing of irregular polyhedral particles under repeated heating and cooling cycles by means of numerical simulations with the Non-Smooth Contact Dynamics method. Assuming a homogeneous te
Externí odkaz:
http://arxiv.org/abs/1901.09569
We study the fragment size distributions after crushing of single and many particles under uniaxial compression inside a cylindrical container by means of numerical simulations. Under the assumption that breaking goes through the bulk of the particle
Externí odkaz:
http://arxiv.org/abs/1901.04801
Publikováno v:
Physical Review Fluids 3, 074302, Published 11 July 2018
Introducing a model to study deposition and erosion of single particles at microscopic scale, we investigate the clogging and erosive processes in a pore. The particle diameter, concentration, and adhesive forces rule the way particles are deposited,
Externí odkaz:
http://arxiv.org/abs/1807.09138
A Boundary-Spheropolygon Element Method for Stress Determination and Breakage Modelling of Particles
We present a boundary-spheropolygon element method (BSEM), that combines the boundary integral method (BIM) and the spheropolygon-based discrete element method (SEM). The interaction between particles is simulated via the SEM, and the sub-particle st
Externí odkaz:
http://arxiv.org/abs/1808.04676
Publikováno v:
Phys. Rev. Lett. 119, 124501, Published 18 September 2017
Erosion and deposition during flow through porous media can lead to large erosive bursts that manifest as jumps in permeability and pressure loss. Here we reveal that the cause of these bursts is the re-opening of clogged pores when the pressure diff
Externí odkaz:
http://arxiv.org/abs/1709.08451
Publikováno v:
Phys. Rev. B 96, 184307 (2017)
We provide numerical evidence that a Kelvin-Helmholtz instability occurs in the Dirac fluid of electrons in graphene and can be detected in current experiments. This instability appears for electrons in the viscous regime passing though a micrometer-
Externí odkaz:
http://arxiv.org/abs/1706.00801
Magnetic nanoparticles in a colloidal solution self-assemble in various aligned structures, which has a profound influence on the flow behavior. However, the precise role of the microstructure in the development of the rheological response has not be
Externí odkaz:
http://arxiv.org/abs/1704.07089