FlexScale: Modeling and Characterization of Flexible Scaled Sheets
Authors: 
Juan Sebastian Montes Maestre, Yinwei Du, Ronan Hinchet, Stelian Coros, Bernhard ThomaszewskiAuthors Info & Claims
Juan Sebastian Montes Maestre, Yinwei Du, Ronan Hinchet, Stelian Coros, Bernhard ThomaszewskiAuthors Info & ClaimsArticle No.: 86, Pages 1 - 14
Abstract
We present a computational approach for modeling the mechanical behavior of flexible scaled sheet materials---3D-printed hard scales embedded in a soft substrate. Balancing strength and flexibility, these structured materials find applications in protective gear, soft robotics, and 3D-printed fashion. To unlock their full potential, however, we must unravel the complex relation between scale pattern and mechanical properties. To address this problem, we propose a contact-aware homogenization approach that distills native-level simulation data into a novel macromechanical model. This macro-model combines piecewise-quadratic uniaxial fits with polar interpolation using circular harmonics, allowing for efficient simulation of large-scale patterns. We apply our approach to explore the space of isohedral scale patterns, revealing a diverse range of anisotropic and nonlinear material behaviors. Through an extensive set of experiments, we show that our models reproduce various scale-level effects while offering good qualitative agreement with physical prototypes on the macro-level.
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- FlexScale: Modeling and Characterization of Flexible Scaled Sheets
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Published: 19 July 2024
Published in TOG Volume 43, Issue 4
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