Dear Colleagues, if you are interested in the state-of-the-art R&D in composite materials, you might want to attend the American Society for Composites Anuual Meeting at Purdue (10/22-25, 2017). The registeration is open at https://cdmhub.org/groups/asc2017/registration
Dear Mechanician,
A novel method for the identification of higher-order continua equivalent to a Cauchy composite has been published, as a result of the collaboration between the following two ERC projects:
http://erc-instabilities.unitn.it
http://musam.imtlucca.it/CA2PVM.html
Full paper:
https://doi.org/10.1016/j.mechrescom.2017.07.002
Abstract:
http://dx.doi.org/10.1039/C7NR04455K Graphene has excellent mechanical, thermal and electrical properties. However, there are limitations in utilizing monolayers of graphene for mechanical engineering applications due to its atomic thickness and lack of bending rigidity. Synthesizing graphene aerogels or foams is one approach to utilize graphene in three-dimensional bulk forms. Recently, graphene with a gyroidal geometry has been proposed.
Load separation curves between self-affine rough surfaces have been studied by means of extensive numerical simulations. The results of the comparison with the two main contact mechanics theories have been reported. https://www.nature.com/articles/s41598-017-07234-4
Rong Long
Department of Mechanical Engineering, University of Colorado Boulder
Dear Colleagues,
I thought some of you may be interested in our recent paper which has been accepted to Soft Matter. The article is available online, here:
http://pubs.rsc.org/en/content/articlepdf/2014/SM/C7SM01245D?page=search
It contains a new model for the fracture of particulate rafts, and some new experimental results as well. Questions are welcome.
Effects of Cu, Mn, Al, Ti, Mo on generalized stacking fault energies, Rice-criterion ductilities, and twinabilities of CoCrFeNi-based face-centered cubic high entropy alloys were investigated using density functional theory calculations. The calculated barrier energies and twinnabilities revealed that the addition of Ti or Mo increased the tendency of dislocation glide and deformation twinning, while addition of Mn, Cu and relatively high amount of Al facilitated dislocation gliding and martensitic transformation. Low amount of Al resulted in only dislocation gliding.
Michele Ciavarella Yang Xu Robert L. Jackson
Some Closed-Form Results for Adhesive Rough Contacts Near Complete Contact on Loading and Unloading in the Johnson, Kendall, and Roberts Regime
Journal of Tribology Copyright VC 2018 by ASME JANUARY 2018, Vol. 140 / 011402-1
Recently, generalizing the solution of the adhesiveless random rough contact proposed
by Xu, Jackson, and Marghitu (XJM model), the first author has obtained a model for
