Title
Mixing shear and dilation in marginal matter
Speaker
Brian Tighe (Delft University of Technology)
Abstract
Soft sphere packings and random spring networks are two canonical models of marginal matter.
I will present simulations and theory describing packings and networks as they undergo deformations
that mix shear and dilation.
My main goals are twofold:
(i) I will show that pre-tension can be exploited to tune the shear modulus of random spring networks;
and (ii) I will show that there are surprising differences in the way networks and packings dilate
in response to shear.
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