Solids with Cracks and Pores of Various Shapes: Wavespeeds, Microfracturing Patterns and Proper Interpretation of Experimental Data

具有各种形状的裂纹和孔隙的固体：波速、微断裂模式和实验数据的正确解释

• 批准号: 9619664
• 负责人: Mark Kachanov
• 金额: $ 12.99万
• 依托单位: Tufts University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-05-15 至 2000-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9619664&HistoricalAwards=false
• 关键词: Solids; Cracks; Pores; Various; Shapes

9619644 Kachanov Materials may contain defects that are a mixture of diverse shapes, such as pores and microcracks. The microfracturing patterns of the material are strongly affected by these shape factors. A study of the interpretation of data obtained for materials with such defects is being conducted. the prediction of effective moduli and wavespeeds from information of damage is done. The microfracturing patterns in damaged materials as functions of shapes and relative sizes of damage elements are being addressed. Also, the identification of signatures of the fluid presence in pores of various shapes is being conducted. Application areas include, powder metallurgy and hot processing, geophysics and rock mechanics, behavior of porous materials, etc. ***

9619644 Kachanov材料可能含有各种形状的混合缺陷，如孔隙和微裂纹。 材料的微破裂模式强烈地受这些形状因素的影响。 目前正在研究如何解释从具有此类缺陷的材料中获得的数据。 从损伤信息预测有效模量和波速。 损伤材料中的微破裂模式作为损伤单元的形状和相对尺寸的函数正在被解决。 此外，正在对各种形状的孔隙中存在的流体的特征进行识别。 应用领域包括粉末冶金和热加工、物理学和岩石力学、多孔材料的行为等。