Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.
Optimal length scales emerging from shear load transfer in natural materials: application to carbon-based nanocomposite design.
An analytical model is presented to link the mechanical properties of constituents, their geometric arrangement, and the chemistries used in their lateral interactions and very good agreement is found as compared with experimental measurements.
Nonlinear elastic behavior of graphene: Ab initio calculations to continuum description
The nonlinear in-plane elastic properties of graphene are calculated using density-functional theory. A thermodynamically rigorous continuum description of the elastic response is formulated by…
Elastic and frictional properties of graphene
We describe studies of the elastic properties and frictional characteristics of graphene samples of varying thickness using an atomic force microscope. For tensile testing, graphene is suspended over…
Microfabrication and mechanical properties of nanoporous gold at the nanoscale
Experimental validation of multiscale modeling of indentation of suspended circular graphene membranes
Recoverable Slippage Mechanism in Multilayer Graphene Leads to Repeatable Energy Dissipation.
This study demonstrates that the finite shear strength between individual layers could explain the experimentally measured size-dependent strength with thickness scaling in MLG sheets and reveals an atomic level interlayer slippage process.
Plasticity and ductility in graphene oxide through a mechanochemically induced damage tolerance mechanism
A mechanochemical phenomenon in graphene oxide membranes, covalent epoxide-to-ether functional group transformations that deviate from epoxide ring-opening reactions are reported, discovered through nanomechanical experiments and density functional-based tight binding calculations.
Robust carbon-nanotube-based nano-electromechanical devices: understanding and eliminating prevalent failure modes using alternative electrode materials.
This work investigates the prevalent failure modes of CNT-based NEMS that hamper reliability through a combined experimental–computational approach and identifies their point of onset within the design space through in situ electromechanical characterization, highlighting the extremely limited region in which failure is avoided.