research

Stiffness threshold of randomly distributed carbon nanotube networks

Submitted by Yuli Chen on Sun, 09/27/2015 - 13:59

http://dx.doi.org/10.1016/j.jmps.2015.07.016

Curvature matters!

Submitted by Erik Bitzek on Sat, 09/26/2015 - 17:01

research

Precipitation hardening

superalloy

atom probe tomography

atomistic simulation

In a recent article in Acta Materialia ("Atom probe informed simulations of dislocation-precipitate interactions reveal the importance of local interface curvature" http://www.sciencedirect.com/science/article/pii/S1359645415002268 ) we showed how the interface curvature influences dislocation - precipitate interactions.

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Submitted by christos_athanasiou on Fri, 09/25/2015 - 13:13

research

tensile testing

How to perform a micro-tensile test without mechanically interacting with the test specimen? By using only optical methods!

Please find the article in the following link:

http://www.mdpi.com/2072-666X/6/9/1365

High damage tolerance of electrochemically lithiated silicon

Submitted by Shuman_Xia on Thu, 09/24/2015 - 21:04

research

lithium ion batteries

fracture mechanics

silicon anode

Wang, X. et al. High damage tolerance of electrochemically lithiated silicon. Nature Communications 6:8417 doi: 10.1038/ncomms9417 (2015).

Abstract

Peptide–Graphene Interactions Enhance the Mechanical Properties of Silk Fibroin

Submitted by Jingjie Yeo on Wed, 09/23/2015 - 01:33

http://pubs.acs.org/doi/abs/10.1021/acsami.5b05615 Studies reveal that biomolecules can form intriguing molecular structures with fascinating functionalities upon interaction with graphene. Then, interesting questions arise. How does silk fibroin interact with graphene? Does such interaction lead to an enhancement in its mechanical properties?

On the origins of the idea of the multiplicative decomposition of the deformation gradient

Submitted by arash_yavari on Tue, 09/22/2015 - 21:55

research

Usually the multiplicative decomposition of deformation gradient in finite plasticity is (incorrectly) attributed to Lee and Liu (1967). This short note discusses the origins of this idea, which go back to the late 1940s. We explain that the first explicit mention of this decomposition appeared a decade earlier in the work of Bilby, et al. (1957) and Kröner (1959). While writing this note I found out that Bruce Bilby passed away a couple of years ago at the age of 91.