%0 journal article
%@ 1359-6462
%A Luehrs, L., Soyarslan, C., Markmann, J., Bargmann, S., Weissmueller, J.

%D 2016
%J Scripta Materialia

%P 65-69 
%R doi:10.1016/j.scriptamat.2015.08.002
%T Elastic and plastic Poisson’s ratios of nanoporous gold
%U https://doi.org/10.1016/j.scriptamat.2015.08.002
 
%X We explore the elastic and plastic Poisson’s ratios, νEνE and νPνP, of nanoporous gold, using digital image correlation during compression experiments including load/unload segments. The two coefficients differ significantly, with νEνE independent of the ligament size, L  , and with a trend for View the MathML sourceνP∝L at not too large L  . Disorder in the network of ligaments may explain why νEνE is smaller than predicted by lattice-based models. Finite element simulations, based on the Deshpande–Fleck constitutive law, validate the data analysis. The constitutive law captures work-hardening and transverse flow of nanoporous gold in good agreement with the experiment.