We apply the HotQC method of Kulkarni et al. (J Mech Phys Solids 56:1417–1449, 2008) to the study of quasistatic void growth in copper single crystals at finite temperature under triaxial expansion. The void is strained to 30% deformation at initial temperatures and nominal strain rates ranging from 150 to 600K and from 2.5×105 to 2.5×1011 s−1, respectively. The interatomic potential used in th...

Two-dimensional, nonequilibrium molecular dynamics simulations have been applied to study the structure of thin films grown on single-crystal Lennard-Jones substrates. The principal microstructural features to develop within these films are single vacancies and small voids which tend to be slightly elongated and to be aligned in the growth direction. Both the void volume and the mean surface ro...

The proposed model of void formation takes into account existence two types sinks/sources non-equilibrium vacancies, depending on their location: in the phase volume and at interfacial boundaries. At interdiffusion reaction diffusion which happens vacancy atomic mechanism, inequality atoms fluxes is caused by differential mobility, give rise to a directional flux vacancies. This vacancies cause...

Resin Transfer Molding (RTM), as a method for the manufacture of advanced ber reinforced composite materials, is attractive because it ooers the possibility of lower manufacturing costs and more complex shapes than traditional methods. A major issue in this new manufacturing process is the elimination of void spaces in the resin ll operation, so that products with high quality are manufactured....

African electricity access shortfalls have prompted multiple energy planning models to suggest rapid deployment of low-carbon pathways. Instead being data driven, these scenario-based often rely on assumptions and political targets. Recently in Nature Energy, Alova et al. propose a solution for integrating local factors into models. In the push achieving universal access, there been host that u...

Downward turbulent bubbly flows in pipes were modeled using computational fluid dynamics tools. The Hydrodynamics, phase distribution and turbulent structure of twophase air-water flow in a 57.15 mm diameter and 3.06 m length vertical pipe was modeled by using the 3-D Eulerian-Eulerian multiphase flow approach. Void fraction, liquid velocity and turbulent fluctuations profiles were calculated a...

Numerical simulations of cyclic biaxial tests were performed on samples with polygonal particles having aspect ratios (AR) equal to 1 up to 3 to better understand the cyclic behaviour of granular materials. The samples are created by deposit under gravity leading to the existence of an inherent anisotropy. Nevertheless, for the sample with AR equal to 1, numerical tests were also performed from...