Monthly Archives: August 2023

Augmented Incremental Potential Contact for Sticky Interactions

Posted on August 15, 2023 by christopherbatty

Yu Fang, Minchen Li, Yadi Cao, Xuan Li, Joshuah Wolper, Yin Yang, Chenfanfu Jiang We introduce a variational formulation for simulating sticky interactions between elastoplastic solids. Our method brings a wider range of material behaviors into the reach of the … Continue reading →

Posted in Uncategorized | Comments Off on Augmented Incremental Potential Contact for Sticky Interactions

Anatomically Detailed Simulation of Human Torso

Posted on August 14, 2023 by christopherbatty

Seunghwan Lee, Yifeng Jiang, C. Karen Liu Existing digital human models approximate the human skeletal system using rigid bodies connected by rotational joints. While the simplification is considered acceptable for legs and arms, it significantly lacks fidelity to model rich … Continue reading →

Posted in Uncategorized | Comments Off on Anatomically Detailed Simulation of Human Torso

Nonlinear Compliant Modes for Large-Deformation Analysis of Flexible Structures

Posted on August 14, 2023 by christopherbatty

Simon Duenser, Bernhard Thomaszewski, Roi Poranne, Stelian Coros Many flexible structures are characterized by a small number of compliant modes, i.e., large deformation paths that can be traversed with little mechanical effort, whereas resistance to other deformations is much stiffer. … Continue reading →

Posted in Uncategorized | Comments Off on Nonlinear Compliant Modes for Large-Deformation Analysis of Flexible Structures

A Unified Analysis of Penalty-Based Collision Energies

Posted on August 10, 2023 by christopherbatty

Alvin Shi, Theodore Kim We analyze a wide class of penalty energies used for contact response through the lens of a reduced frame. Applying our analysis to both spring-based and barrier-based energies, we show that we can obtain closed-form, analytic … Continue reading →

Posted in Uncategorized | Comments Off on A Unified Analysis of Penalty-Based Collision Energies

An Eigenanalysis of Angle-Based Deformation Energies

Posted on August 10, 2023 by christopherbatty

Haomiao Wu, Theodore Kim Angle-based energies appear in numerous physics-based simulation models, including thin-shell bending and isotropic elastic strands. We present a generic analysis of these energies that allows us to analytically filter the negative eigenvalues of the second derivative … Continue reading →

Posted in Uncategorized | Comments Off on An Eigenanalysis of Angle-Based Deformation Energies

Lifted Curls: A Model for Tightly Coiled Hair Simulation

Posted on August 10, 2023 by christopherbatty

Alvin Shi, Haomiao Wu, Jarred Parr, A.M. Darke, Theodore Kim We present an isotropic, hyperelastic model specifically designed for the efficient simulation of tightly coiled hairs whose curl radii approach 5 mm. Our model is robust to large bends and … Continue reading →

Posted in Uncategorized | Comments Off on Lifted Curls: A Model for Tightly Coiled Hair Simulation

Towards Realtime: A Hybrid Physics-based Method for Hair Animation on GPU

Posted on August 10, 2023 by christopherbatty

Li Huang, Fan Yang, Chendi Wei, Yuju (Edwin) Chen, Chun Yuan, Ming Gao This paper introduces a hair simulator optimized for real-time applications, including console and cloud gaming, avatar live-streaming, and metaverse environments. We view the collisions between strands as … Continue reading →

Posted in Uncategorized | Comments Off on Towards Realtime: A Hybrid Physics-based Method for Hair Animation on GPU