elastic moduli – TechConnect Briefs

Brittle Ductile Transition in Carbon Nanotube Bundles

Cornwell C.F., Allen J.B., Marsh C., Carlson T., Stynoski P., Newcomb B., Masters B., Ebeling R., Welch C.R., U.S. Army Engineer Research and Development Center, US

Carbon nanotubes (CNTs) attract considerable interest because of their extremely high stiffness, strength, and electrical and thermal conductivity. While the strength and stiffness of CNTs can be extremely high, bundles composed of aligned CNTs are [...]

Size-Dependent Elastic Moduli of Nanofilms

Chang I-L, Huang J-C, National Chung Cheng University, TW

A semi-continuum model is constructed for the analysis of face-cubic-center crystal structure nanofilms to study the size dependence of the elastic properties. Unlike the classical continuum theory, the current model directly takes the discrete nature [...]

Effective Elastic Moduli of Nanocomposites with Prescribed Random Orientation of Nanofibers

Buryachenko V.A., Roy A., University of Dayton Research Institute, US

Experimental research and molecular dynamic simulation proved that nanofibers can be effectively considered in the framework of continuum mechanics as the homogeneous prolate spheroidal homogeneous inclusions with a large aspect ratio. Nanocomposite is modeled as [...]

Modeling the Microstructure and Elastic Properties of Complex Materials

Roberts A.P., Garboczi E.J., University of Queensland, AU

The finite element method is used to study the influence of porosity and pore shape on the elastic properties of model porous media. The Young's modulus of each model was found to be practically independent [...]