Micromechanics Analyses of Single-Fiber Experiments Can Give a Better Understanding of the Fiber/Matrix Interface in Composite Materials

单纤维实验的微观力学分析可以更好地理解复合材料中的纤维/基体界面

• 批准号: 9401772
• 负责人: John Nairn
• 金额: $ 17.98万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9401772&HistoricalAwards=false
• 关键词: Micromechanics; Analyses; Single; Fiber; Experiments

9401772 Nairn This award is to study the stress analysis of the single-fiber specimens that are used to examine the fiber/matrix interface in composite materials. Two new methods of analysis will be used to improve on the more commonly used, but inadequate, shear-lag analysis technique. The new methods can be designated as the fragmentation and microbond tests. It is expected that accurate values of the tensile stresses at the fiber/matrix interface will combine with fracture mechanics considerations to yield an improved understanding of this fundamental problem in composite materials. ***

9401772 Nairn 该奖项旨在研究用于检查复合材料中纤维/基体界面的单纤维样本的应力分析。 将使用两种新的分析方法来改进更常用但不充分的剪切滞后分析技术。 新方法可称为碎裂和微键测试。 预计纤维/基体界面处拉伸应力的准确值将与断裂力学考虑相结合，以更好地理解复合材料中的这一基本问题。 ***