2005/09/30 by Kunimasa Miyazaki, Hans M. Wyss, David A. Weitz +2 · 1 citation
Chemical Engineering · Chemistry · Materials Science · Physics and Astronomy · #Amplitude #Chemistry #Classical mechanics #Colloid #Composite material #Coupling (piping) #Dynamic mechanical analysis #Dynamic modulus #Force Microscopy Techniques and Applications #Material Dynamics and Properties #Materials science #Mechanics #Metastability #Modulus #Nonlinear system #Optics #Physical chemistry #Physics #Polymer #Quantum mechanics #Rheology and Fluid Dynamics Studies #Thermodynamics #Viscoelasticity #cond-mat.soft
paper · pdf · doi:10.1209/epl/i2006-10203-9
published as Europhys. Lett., 75, 915- 921 (2006) · 7 pages, 3 figures, accepted for publication in Europhys. Lett
arxiv created 2006/07/21 · openalex publication_date 2006/08/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Many metastable complex fluids such as colloidal glasses and gels show distinct nonlinear viscoelasticity with increasing oscillatory-strain amplitude; the storage modulus decreases monotonically as the strain amplitude increases whereas the loss modulus has a distinct peak before it decreases at larger strains. We present a qualitative argument to explain this ubiquitous behavior and use mode-coupling theory (MCT) to confirm it. We compare theoretical predictions to the measured nonlinear viscoelasticity in a dense hard-sphere colloidal suspension; reasonable agreement is obtained. The argument given here can be used to obtain new information about linear viscoelasticity of metastable complex fluids from nonlinear strain measurements.