Fracture Coalescence Research

摘要：9301267，派-爱因斯坦：这项研究的目标是从实验和理论上研究不重叠的预先存在的不连续面之间的结合。理论工作将涉及准连续介质和离散裂缝扩展模型。通过使用参数研究中经过实验验证的分析和数值模型来扩展实验研究，实验研究和理论研究紧密地联系在一起。它的目的是通过考虑各种材料性质的影响、先前存在的不连续面的几何形状和应力场的影响，对聚结压裂有一个基本的了解，并开发预测程序。

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.