elasticity – TechConnect Briefs

Mapping nanomechanical phenomena of graphene nanostructures using force modulation and ultrasonic force microscopy

Kolosov O.V., Kay N.D., Robinson B.J., Rosamond M., Zeze D., Dinelli F., Lancaster University, UK

Whereas graphene electronic properties are extensively studied, mechanical properties of graphene nanostructures are much less experimentally explored even for simple graphene structures. We use a combination of force sensitive scanning probe microscopies that combines low [...]

Mechanics of silicon nanowires: size-dependent elasticity from first principles

Rudd R.E., Lee B., Lawrence Livermore National Laboratory, US

We have conducted a detailed study of the size dependence of the mechanical properties of silicon nanowires using first principles quantum mechanical calculation together with continuum mechanics theory and atomistic simulation based on empirical potentials. [...]

Modeling multi-scale liquid dispersion phenomena in conjunction with Computational Fluid Dynamics

Mohan S., Haidari A., Mukopadhyay A., Fluent, Inc., US

Mixing of fluid in different geometric scales dominates variety of real life applications ranging from engineering chemicals, food materials, pharmaceutical products to biological organs. In this presentation we will address coupling of continuum scales in [...]

Illustrative Modeling Studies on Elastomers and Rubberlike Elasticity

Mark J.E., The University of Cincinnati, US

Examples are given to illustrate the use of computer modeling to elucidate the structures of elastomeric polymer networks, and to provide guidance on controlling these structures to maximize mechanical properties. The first example involves simulations [...]

3-D Computational Modeling of RF MEMS Switches

Espinosa H.D., Fischer M., Zhu Y., Lee S., Northwestern University, US

Young's modulus and residual stress state of freestanding thin membranes are characterized in this work by means of wafer level experimental techniques. RF MEMS Switches manufactured by Raytheon Systems Co. are investigated using a new [...]