FlexScale: Modeling and Characterization of Flexible Scaled Sheets

IF 4.4 2区 化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Juan Sebastian Montes Maestre, Yinwei Du, R. Hinchet, Stelian Coros, Bernhard Thomaszewski
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引用次数: 0

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.
FlexScale:柔性缩放片材的建模与表征
我们介绍了一种模拟柔性鳞片材料力学行为的计算方法--嵌入软基底的三维打印硬鳞片。这些结构材料兼顾了强度和柔性,可应用于防护装备、软机器人和三维打印时装。然而,要充分挖掘它们的潜力,我们必须解开鳞片模式与机械性能之间的复杂关系。为了解决这个问题,我们提出了一种接触感知均质化方法,将原生级模拟数据提炼为一种新型宏观力学模型。这种宏观模型将片断二次单轴拟合与使用圆谐波的极性插值相结合,从而实现了大规模模式的高效模拟。我们采用这种方法探索了等轴尺度图案的空间,揭示了各向异性和非线性材料行为的多样性。通过一系列广泛的实验,我们证明了我们的模型能够再现各种尺度级效应,同时在宏观层面上与物理原型具有良好的定性一致性。
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来源期刊
CiteScore
7.20
自引率
6.00%
发文量
810
期刊介绍: ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.
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