Study of Dynamic Fracture of Composite Materials, Award in U.S. and Indian Currencies

描述：该项目支持罗德岛大学(URI)机械工程系的Arun Shukla博士和坎普尔印度理工学院机械工程系的B.D.Agarwal(IIT-K)的合作项目。该项目旨在研究在动态载荷条件下，玻璃纤维和聚酯树脂组成的透明双折射复合材料中的损伤萌生和扩展。Cranz Schardin类型的光学记录系统将在IIT-K设计和建造。它将能够以每秒2万到90万帧的速度录制20张照片。在断裂过程中，应以很短的时间间隔拍摄试件。初始条纹图案将提供有关损伤起始条件的信息，而后续条纹图案将提供有关动态损伤增长和损伤阻止条件的信息。范围：动态载荷下复合材料断裂的这一研究课题是及时的，因为它目前还没有被很好地理解。印度和美国的合作者在处理这一主题研究方面拥有专业知识。他们的经验是相辅相成的。这个项目代表了一个潜在的非常有用的国际合作案例。

Description: This project supports a collaborative project by Drs. Arun Shukla of the Mechanical Engineering Department, University of Rhode Island (URI), and B.D. Agarwal, of the Mechanical Engineering Department, Indian Institute of Technology, Kanpur (IIT-K). The project aims at the study of damage initiation and growth, under dynamic loading conditions, in transparent birefringent composites made of glass fibers and polyester resin. An optical recording system of the Cranz Schardin type is to be designed and constructed at IIT-K. It will be capable of recording 20 pictures at rates from 20,000 to 900,000 frames per second. Specimens are to be photographed during the fracture process at very short time intervals. Initial fringe patterns are expected to give information on the the damage initiation conditions while subsequent fringe patterns will give information about the dynamic damage growth and damage arrest conditions. Scope: The topic of this research on fracture of composites under dynamic loads is timely since it is not currently well understood. The Indian and U.S. collaborators have expertise in dealing with the subject research. Their experiences complement each other well. This project represents a case of a potentially very useful international collaboration.