Computational and Experimental Strategies for Investigating Failure in Emerging Soft-Wet Materials

研究新兴软湿材料失效的计算和实验策略

• 批准号: 0528119
• 负责人: John Dolbow
• 金额: $ 9.96万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0528119&HistoricalAwards=false
• 关键词: Computational; Experimental; Strategies; Investigating; Failure

AbstractThis proposal details a set of research activities designed to advance the present level of scientific knowledge in the mechanics of soft-wet material failure. Experiments have been designed to provide both fine-grained micro-scale investigations of failure processes as well as coarse-grained information such as fracture toughness and flaw evolution. The intellectual merit of this work stems from the unique properties of stimulus-responsive hydrogels and the nature of the proposed investigation. Despite the tremendous potential of many soft-wet materials, comprehensive measurements that probe their failure, that consider the role of polymer network structure and cross-link density, are missing. The broader impacts of this project are related to the tremendous growth potential of biomedical and actuation technologies that could benefit from stimulus-responsive hydrogels. Engineering graduate students from under-represented groups will perform the majority of the proposed research.

摘要此提案详细介绍了一系列研究活动，旨在提高软湿物质失败力学中的科学知识水平。已经设计了实验，以提供对故障过程的细粒度微尺度研究，也提供了粗粒信息，例如断裂韧性和缺陷的演变。 这项工作的智力优点源于刺激反应性水凝胶的独特特性以及拟议的研究的性质。 尽管许多软湿材料具有巨大的潜力，但仍缺少考虑聚合物网络结构和交联密度的作用的全面测量。该项目的更广泛影响与可能受益于刺激反应性水凝胶受益的生物医学和驱动技术的巨大增长潜力有关。来自代表性不足小组的工程研究生将​​进行大多数拟议的研究。