Fracture Coalescence Research

断裂聚结研究

• 批准号: 9301267
• 负责人: Herbert Einstein
• 金额: $ 22.92万
• 依托单位: Massachusetts Institute of Technology
• 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: 1994-05-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9301267&HistoricalAwards=false
• 关键词: Fracture; Coalescence; Research

ABSTRACT: 9301267, PI-Einstein: The objectives of this research are to investigate experimentally and theoretically the coalescence between non overlapping pre existing discontinuities. Theoretical work will involve both a quasi continuum as well as a discrete fracture propagation model. The experimental and theoretical research are closely interrelated by using the experimentally validated analytical and numerical models in parametric studies to extend the experimental investigations. It is intended to gain a basic understanding od coalescence fracturing and to develop predictive procedures by considering the effect of a variety of material properties, of the geometry of the pre existing discontinuities and of the stress field.

摘要：9301267，PI-Einstein：本研究的目标是从实验和理论上研究非重叠的预先存在的不连续性之间的合并。 理论工作将涉及准连续介质以及离散的断裂扩展模型。 通过在参数研究中使用实验验证的分析和数值模型来扩展实验研究，实验和理论研究紧密相关。 它的目的是获得一个基本的了解OD聚结压裂和开发预测程序，考虑各种材料性能的影响，预先存在的不连续性和应力场的几何形状。