Per-contact iteration method for solving contact dynamics

J Hwangbo, J Lee, M Hutter - IEEE Robotics and Automation …, 2018 - ieeexplore.ieee.org
This letter introduces a new iterative method for contact dynamics problems. The proposed
method is based on an efficient bisection method which iterates over each contact. We …

Hybrid grains: Adaptive coupling of discrete and continuum simulations of granular media

Y Yue, B Smith, PY Chen… - ACM Transactions on …, 2018 - dl.acm.org
We propose a technique to simulate granular materials that exploits the dual strengths of
discrete and continuum treatments. Discrete element simulations provide unmatched levels …

A hybrid iterative solver for robustly capturing coulomb friction in hair dynamics

G Daviet, F Bertails-Descoubes… - Proceedings of the 2011 …, 2011 - dl.acm.org
Dry friction between hair fibers plays a major role in the collective hair dynamic behavior as
it accounts for typical nonsmooth features such as stick-slip instabilities. However, due the …

Using Nesterov's method to accelerate multibody dynamics with friction and contact

H Mazhar, T Heyn, D Negrut, A Tasora - ACM Transactions on Graphics …, 2015 - dl.acm.org
We present a solution method that, compared to the traditional Gauss-Seidel approach,
reduces the time required to simulate the dynamics of large systems of rigid bodies …

Simple and scalable frictional contacts for thin nodal objects

G Daviet - ACM Transactions on Graphics (TOG), 2020 - dl.acm.org
Frictional contacts are the primary way by which physical bodies interact, yet they pose
many numerical challenges. Previous works have devised robust methods for handling …

Adaptive nonlinearity for collisions in complex rod assemblies

DM Kaufman, R Tamstorf, B Smith, JM Aubry… - ACM Transactions on …, 2014 - dl.acm.org
We develop an algorithm for the efficient and stable simulation of large-scale elastic rod
assemblies. We observe that the time-integration step is severely restricted by a strong …

On solving contact problems with Coulomb friction: formulations and numerical comparisons

V Acary, M Brémond, O Huber - … Transactions of the European Network for …, 2018 - Springer
In this chapter, we review several formulations of the discrete frictional contact problem that
arises in space and time discretized mechanical systems with unilateral contact and three …

[HTML][HTML] Ultrascale simulations of non-smooth granular dynamics

T Preclik, U Rüde - Computational Particle Mechanics, 2015 - Springer
This article presents new algorithms for massively parallel granular dynamics simulations on
distributed memory architectures using a domain partitioning approach. Collisions are …

A new representation of systems with frictional unilateral constraints and its Baumgarte-like relaxation

R Kikuuwe, B Brogliato - Multibody System Dynamics, 2017 - Springer
This paper proposes a new representation of multibody mechanical systems involving three-
dimensional frictional unilateral constraints. The new representation is of the form of a …

The maximum dissipation principle in rigid-body dynamics with inelastic impacts

T Preclik, S Eibl, U Rüde - Computational Mechanics, 2018 - Springer
Formulating a consistent theory for rigid-body dynamics with impacts is an intricate problem.
Twenty years ago Stewart published the first consistent theory with purely inelastic impacts …