Strain Rate Dissipation for Elastic Deformations
Strain Rate Dissipation for Elastic Deformations
复制标题
弹性变形的应变率耗散
DOI：
10.1111/cgf.13521
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. Otaduy
中科院分区：
文献类型：
--
作者：
R. M. Sánchez;M. Otaduy
阻尼决定了动态变形中的能量如何耗散。阻尼的设计要求模型的行为沿着变形模式是容易控制的，而其他运动不受影响。在本文中，我们提出了一个框架的阻尼使用耗散电位制定为应变率的函数的设计。我们研究了简单的参数化模型，连续和离散变形模型的应用，以及实施的实际意义。我们还研究了以前的简单阻尼模型，特别是我们证明了瑞利阻尼的局限性。我们详细分析了应变率耗散势在两种高度不同的变形模型中的应用，即StVK超弹性和具有滑动持久接触的纱线级织物。这些变形模型代表了阻尼模型的适用范围。
Damping determines how the energy in dynamic deformations is dissipated. The design of damping requires models where the behavior along deformation modes is easily controlled, while other motions are left unaffected. In this paper, we propose a framework for the design of damping using dissipation potentials formulated as functions of strain rate. We study simple parameterizations of the models, the application to continuum and discrete deformation models, and practical implications for implementation. We also study previous simple damping models, in particular we demonstrate limitations of Rayleigh damping. We analyze in detail the application of strain rate dissipation potentials to two highly different deformation models, StVK hyperlasticity and yarn‐level cloth with sliding persistent contacts. These deformation models are representative of the range of applicability of the damping model.
影响因子：
6.2
作者：
Mehta, Dushyant;Sridhar, Srinath;Theobalt, Christian
通讯作者：
Theobalt, Christian