TY - JOUR

T1 - The Matchstick Model for Anisotropic Friction Cones

AU - Erleben, K.

AU - Macklin, M.

AU - Andrews, S.

AU - Kry, P. G.

PY - 2020

Y1 - 2020

N2 - Inspired by frictional behaviour that is observed when sliding matchsticks against one another at different angles, we propose a phenomenological anisotropic friction model for structured surfaces. Our model interpolates isotropic and anisotropic elliptical Coulomb friction parameters for a pair of surfaces with perpendicular and parallel structure directions (e.g. the wood grain direction). We view our model as a special case of an abstract friction model that produces a cone based on state information, specifically the relationship between structure directions. We show how our model can be integrated into LCP and NCP-based simulators using different solvers with both explicit and fully implicit time-integration. The focus of our work is on symmetric friction cones, and we therefore demonstrate a variety of simulation scenarios where the friction structure directions play an important part in the resulting motions. Consequently, authoring of friction using our model is intuitive and we demonstrate that our model is compatible with standard authoring practices, such as texture mapping.

AB - Inspired by frictional behaviour that is observed when sliding matchsticks against one another at different angles, we propose a phenomenological anisotropic friction model for structured surfaces. Our model interpolates isotropic and anisotropic elliptical Coulomb friction parameters for a pair of surfaces with perpendicular and parallel structure directions (e.g. the wood grain direction). We view our model as a special case of an abstract friction model that produces a cone based on state information, specifically the relationship between structure directions. We show how our model can be integrated into LCP and NCP-based simulators using different solvers with both explicit and fully implicit time-integration. The focus of our work is on symmetric friction cones, and we therefore demonstrate a variety of simulation scenarios where the friction structure directions play an important part in the resulting motions. Consequently, authoring of friction using our model is intuitive and we demonstrate that our model is compatible with standard authoring practices, such as texture mapping.

KW - animation

KW - modelling

KW - natural phenomena animation

KW - physically based animation

KW - physically based modelling

KW - • Computing methodologies → Physical simulation

U2 - 10.1111/cgf.13885

DO - 10.1111/cgf.13885

M3 - Journal article

AN - SCOPUS:85074768809

VL - 39

SP - 450

EP - 461

JO - Computer Graphics Forum

JF - Computer Graphics Forum

SN - 1467-8659

IS - 1

ER -