A Material Point Method for Viscoelastic Fluids, Foams and Sponges
Loading...
Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
ACM Siggraph
Abstract
We present a new Material Point Method (MPM) for simulating viscoelastic fluids, foams and sponges. We design our discretization from the upper convected derivative terms in the evolution of the left Cauchy-Green elastic strain tensor. We combine this with an Oldroyd-B model for plastic flow in a complex viscoelastic fluid. While the Oldroyd-B model is traditionally used for viscoelastic fluids, we show that its interpretation as a plastic flow naturally allows us to simulate a wide range of complex material behaviors. In order to do this, we provide a modification to the traditional Oldroyd-B model that guarantees volume preserving plastic flows. Our plasticity model is remarkably simple (foregoing the need for the singular value decomposition (SVD) of stresses or strains). Lastly, we show that implicit time stepping can be achieved in a manner similar to [Stomakhin et al. 2013] and that this allows for high resolution simulations at practical simulation times.
Description
@inproceedings{10.1145:2786784.2786798,
booktitle = {ACM/ Eurographics Symposium on Computer Animation},
editor = {Florence Bertails-Descoubes and Stelian Coros and Shinjiro Sueda},
title = {{A Material Point Method for Viscoelastic Fluids, Foams and Sponges}},
author = {Ram, Daniel and Gast, Theodore and Jiang, Chenfanfu and Schroeder, Craig and Stomakhin, Alexey and Teran, Joseph and Kavehpour, Pirouz},
year = {2015},
publisher = {ACM Siggraph},
ISBN = {978-1-4503-3496-9},
DOI = {10.1145/2786784.2786798}
}