RT journal article
T1 Local viscoelastic properties and shear stress propagation in bulk and confined polymer melts and low-molecular weight liquids
A1 Behbahani, A.F.
A1 Bacova, Petra
A1 Polińska, P.
A1 Burkhart, C.
A1 Doxastakis, M.
A1 Harmandaris, V.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
AB Through the analysis of the spatial correlations of local stress, we detect the propagation of long-ranged liquid-elasticity-mediated shear stress waves in polymeric and low-molecular weight liquids. The propagation of shear waves is effectively planar; i.e., σαβ propagates in the αβ plane. The autocorrelation functions of the local stress of a region are affected by both the relaxation of stress in that region and the propagation of stress from the region to the rest of the sample. However, due to the planar propagation of shear waves, the transfer of σαβ from those slices of the simulation box that are periodic in the αβ plane is negligible. This allows direct probing of the position-dependent local stress relaxation modulus of liquid in the vicinity of a confining surface.
PB American Physical Society
SN 2643-1564
YR 2024
FD 2024
LK http://hdl.handle.net/10498/33684
UL http://hdl.handle.net/10498/33684
LA eng
NO Goodyear Tire & Rubber Company Horizon 2020 (European Union)
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026