The electronics industry drives a great deal of research towards inventing methods for creating smaller devices. In order for the current trend of the diminishing …
In most engineering metal alloys, the overall plastic resistance is contributed by two or more strengthening mechanisms operating simultaneously. Two major sources of strengthening in …
Abstract of "Deformation Mechanisms in Magnesium Alloys at Elevated Temperature" by David E. Cipoletti, Ph.D., Brown University, May 2011The goals of this dissertation were to …
The discrete dislocation (DD) plasticity is truly mechanism-based plasticity and well-suited for mesoscale modeling in metal. The effects of size-dependent plasticity and plastic dissipation emerge …
Carbon nanotubes (CNTs) have the potential to introduce significant improvements in fracture strength and toughness of ceramic materials when compared to traditional microscale reinforcements. Ceramic …
Vocal folds are driven in a shear-dominated, wave-like motion at high frequencies (100-1000 Hz) at strains up to 30% during phonation. Damage to the vocal …
Length scale effects in plastic deformation, restrictions on plastic deformation, and realistic simulation of fracture behavior are critical for future engineering design and reliability. Plastic …
Nanotwinned metals have exhibited enhanced mechanical properties, including ultra-high strength, good ductility and remarkable fracture toughness. In this dissertation, we used large-scale atomistic simulations to …
It is well known that diffusion induced stresses are responsible for capacity fading of electrodes in lithium-ion batteries. Here, we develop an atomistic-based continuum model …
The spontaneous growth of long, filamentary whiskers from the surface of Sn-plated Cu conductors poses a serious threat to the reliability of electronic components. While …
Compatibility conditions for various strain measures are well known in both small and finite strain kinematics. For many plane deformation problems in solid mechanics, such …
Novel applications of materials in small dimensions are emerging in areas ranging from electronics, computers, health technologies, laser and fiber optics, to energy harvesting and …
Through coarse grained molecular dynamics (CGMD) simulations and theoretical models, we show that, depending on the radius, a carbon nanotube can enter a cell either …
In nanocrystalline materials it is well postulated that the grain boundary phenomena such as dislocation emission/annihilation, partial nucleation, grain-boundary (GB) sliding, and GB diffusion dominate …
The work presented here describes two major problems: 1) Structural evolution of graphene oxide layers during thermal reduction using combined numerical methods and experimental measurements, …