US-Egypt Cooperative Research: Microcracking and Damage Evaluation by Laser Speckle Shearing Interferometry.

0001581 Seif描述：该奖项是为了支持穆罕默德·A. Seif博士，机械工程系，北方伊利诺伊大学（NIU），Dekalb，伊利诺伊州，和穆罕默德R。Shaalan和Usama Khashaba博士，均来自埃及Zagazig大学机械动力工程系。 该项目旨在开发和演示一种新的自动无损评价（NDE）技术，即激光散斑剪切干涉测量法。 该技术应能够确定不同材料中的缺陷和微裂纹的初始发展及其随后的扩展。 该方法的灵敏度和最终失败的四个重要因素，即缺陷的数量和性质，负载环境，残余应力水平，和材料的失效机制，将调查。范围：美国PI在实施无损检测和使用激光测量实验力学的特殊专长。 Shaalan博士和Khashaba博士在实验设计、可靠性分析和数据分析方面具有专业知识。 双方在这项研究方面有互补的专门知识和设施。 该项目将导致更简单，更可靠，更便宜的技术，用于确定在需要高可靠性的应用中使用的复杂结构的完整性，如航空结构和工业应用中的关键部件。 该项目将涉及NIU的一名美国研究生，为该人提供国际研究经验。 该提案符合INT的目标，即支持在共同感兴趣的领域进行合作研究。 该项目得到了美国-埃及联合基金方案的支持，该方案向两国的科学家和工程师提供赠款，以开展这些合作活动。

0001581SeifDescription: This award is to support a collaborative project by Dr. Mohamed A. Seif, Department of Mechanical Engineering, Northern Illinois University (NIU), Dekalb, Illinois, and Dr. Mohammad R. Shaalan and Dr. Usama Khashaba, both of the Department of Mechanical Power Engineering, Zagazig University, Zagazig, Egypt. The project is intended to develop and demonstrate a novel automated non-destructive evaluation (NDE) technique, that of laser speckle shearing interferometry. The technique should be capable of determining flaws and initial development of microcracking and its subsequent propagation in different materials. The sensitivity of the method and four significant factors in final failure, namely the number and character of the flaws, the load environment, the residual stress level, and the mechanism of failure of the material, will be investigated.Scope: The US PI has special expertise in implementing NDE and using laser measurements in experimental mechanics. Dr. Shaalan and Dr. Khashaba have expertise in experimental design, reliability analysis, and data analysis. The two sides have complementary expertise and facilities at their disposal for this research. The project should lead to simpler, more reliable, and less expensive techniques for determining the integrity of complex structures used in applications requiring high reliability, such as aviation structures and critical components in industrial applications. The project will involve a US graduate student at NIU, providing that person with an international research experience. This proposal meets the INT objective of supporting collaborative research in areas of mutual interest. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.