Fracture Coalescence Research

摘要：9301267，PI-Einstein：本研究的目的是从实验和理论上研究非重叠的预先存在的不连续之间的合并。理论工作将涉及准连续体和离散裂缝扩展模型。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，实验和理论研究密切相关。它的目的是获得对聚结压裂的基本理解，并通过考虑各种材料特性、预先存在的不连续面的几何形状和应力场的影响，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.