219 citations · 347 across the 6 of their papers we have counts for
7 papers
Chain Flexibility and the Segmental Dynamics of Polymers
Daniel Fragiadakis, C. Michael Roland
Using molecular dynamics simulations we examine the dynamics of a family of model polymers with varying chain length and torsional potential barriers. We focus on features of the d…
Density Scaling and Decoupling in o-Terphenyl, Salol, and Dibutyphthalate
R. Casalini, S. S. Bair, C. M. Roland
We present new viscosity and equation of state (EoS) results extending to high pressures for o-terphenyl, salol, and dibutylphthalate. Using these and data from the literature, we…
Failure of classical elasticity in auxetic foams
J. H. Roh, C. B. Giller, P. H. Mott +1
A recent derivation [P.H. Mott and C.M. Roland, Phys. Rev. B 80, 132104 (2009).] of the bounds on Poisson's ratio, v, for linearly elastic materials showed that the conventional lo…
Limits to Poisson's ratio in isotropic materials - general result for arbitrary deformation
P. H. Mott, C. M. Roland
The lower bound usually cited for Poisson's ratio ν is -1, derived from the relationship between ν and the bulk and shear moduli. From consideration of the longitudinal and biaxial…
Constitutive modeling, non-linear behavior, and the stress-optic law
C. M. Roland
Constitutive modelling of the stress-strain response of rubbery polymers is described, with an emphasis on the limits to linearity for both neat and filled rubber (the latter due t…
Limits to Poisson's ratio in isotropic materials
PH Mott, CM Roland
A long-standing question is why Poisson's ratio v nearly always exceeds 0.2 for isotropic materials, whereas classical elasticity predicts v to be between -1 to 1/2. We show that t…