58 citations · 111 across the 8 of their papers we have counts for
8 papers
Fractional Viscoelasticity in Transient Unentangled Polymer Networks
Sachin Shanbhag, Ralm G. Ricarte
Stress relaxation in transient polymer networks often shows extended power-law behavior, , where the exponent frequently departs from the value predicte…
Sparse Regression for Discovery of Constitutive Models from Oscillatory Shear Measurements
Sachin Shanbhag, Gordon Erlebacher
We propose sparse regression as an alternative to neural networks for the discovery of parsimonious constitutive models (CMs) from oscillatory shear experiments. Symmetry and frame…
The Method of Harmonic Balance for the Giesekus Model under Oscillatory Shear
Shivangi Mittal, Yogesh M. Joshi, Sachin Shanbhag
The method of harmonic balance (HB) is a spectrally accurate method used to obtain periodic steady state solutions to dynamical systems subjected to periodic perturbations. We adap…
Large Amplitude Oscillatory Shear Study of a Colloidal Gel at the Critical State
Khushboo Suman, Sachin Shanbhag, Yogesh M. Joshi
We investigate the nonlinear viscoelastic behavior of a colloidal dispersion at the critical gel state using large amplitude oscillatory shear (LAOS) rheology. The colloidal gel at…
Kramers-Kronig Relations for Nonlinear Rheology: 1. General Expression and Implications
Sachin Shanbhag, Yogesh M. Joshi
The principle of causality leads to linear Kramers-Kronig relations (KKR) that relate the real and imaginary parts of the complex modulus through integral transforms. Using…
Kramers-Kronig Relations for Nonlinear Rheology: 2. Validation of Medium Amplitude Oscillatory Shear (MAOS) Measurements
Sachin Shanbhag, Yogesh M. Joshi
The frequency dependence of third-harmonic medium amplitude oscillatory shear (MAOS) modulus provides insight into material behavior and microstructure in the asymp…
Stable and contact-free time stepping for dense rigid particle suspensions
Lukas Bystricky, Sachin Shanbhag, Bryan D. Quaife
We consider suspensions of rigid bodies in a two-dimensional viscous fluid. Even with high-fidelity numerical methods, unphysical contact between particles occurs because of spatia…
Self-diffusion in binary blends of cyclic and linear polymers
Sachin Shanbhag
A lattice model is used to estimate the self-diffusivity of entangled cyclic and linear polymers in blends of varying compositions. To interpret simulation results, we suggest a mi…