"A very simple estimate of adhesion of hard solids with rough surfaces based on a bearing area model" is in press in Meccanica, can be viewed at http://rdcu.be/s0lV Abstract In the present note, we suggest a single-line equation estimate for adhesion between elastic(hard) rough solids with Gaussian multiple scales of roughness.
I wonder the mathematical expressions for the variables: STRAN, STRESS, and DSTRAN which are used in UMAT.
A fully funded PhD Position in mechanical engineering is available at Polytechnique Montreal in Canada to automate the peen forming of aircraft wing skins.
Peen forming automation through in-process 3D shape measurement
Herein, we report a theoretical study of polymeric nanocomposites to provide physical insight into complex material systems in elastic regions. A self-consistent scheme is adopted to predict piezoresistive characteristics, and the effects of the interface and of tunneling on the effective piezoresistive and electrical properties of the nanocomposites are simulated. The overall piezoresistive sensitivity is predicted to be reduced when the lower interfacial resistivity of multi-walled carbon nanotubes (MWCNTs) and the higher effective stiffness of nanocomposites are considered.
Hello,
I would like to know how to measure the density of open cell porous iron foam. I am studying the mechanical behavior of pure iron foams for which I need to compare the relative densities of different foam samples. Could the density of the foams be simply calculated by the mass over the bulk volume (volume of the struts + volume of the pores) of the foam? Can I use Archimedes principle to calculate the foam density given that I have open cells? What is the best method to calculate the foam density?
Best Regards,
Reza
Published in Advanced Materials: http://onlinelibrary.wiley.com/doi/10.1002/adma.201701353/abstract
Published in Current Gene Therapty: https://www.ncbi.nlm.nih.gov/pubmed/28494734
Published in Physical Review X: https://journals.aps.org/prx/abstract/10.1103/PhysRevX.7.021024
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