The Development Of Continuum Mechanics And Material Behavior

连续介质力学和材料行为的发展

• 批准号: 9024637
• 负责人: Roger Fosdick
• 金额: $ 9万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9024637&HistoricalAwards=false
• 关键词: Development; Continuum; Mechanics; Material; Behavior

This research is centered in the areas of thermomechanics and the mechanics of solids. It is especially concerned with nonlinear constitutive theory, and most of the issues are related to the notion of materials stability. When certain bodies are loaded, or heated, or placed in a chemical environment or electrical field, they will experience transformations such as materials symmetry changes and domain switching, local strain concentrations, buckling, bifurcation of their equilibrium field structure, or catastrophic swelling or collapse. These transformations often have pronounced effects and can be used to story energy and toughen or weaken materials, they can cause anomalous behavior of characteristic material moduli, permit polymeric gels to react as muscle fibers, and aid in the storage of light images in ferroelectric crystals. This program emphasizes the theoretical investigation of fundamental problems concerning materials that exhibit such phenomenological behavior.

这项研究集中在热机械学和 固体力学 它特别关注非线性 本构理论，大多数问题都与 材料稳定性的概念。 当某些物体被加载时，或者 加热，或置于化学环境或电场中， 它们将经历材料对称性 变化和域切换，局部应变集中， 屈曲，其平衡场结构的分叉，或 灾难性的膨胀或塌陷。 这些转变往往 具有显著的效果，可用于故事能量和强化 或削弱材料，它们可能会导致 特性材料模量，允许聚合物凝胶反应， 肌肉纤维，并帮助存储光图像， 铁电晶体 该计划强调理论 研究有关材料的基本问题， 表现出这种现象学行为。