Experimental and Fracture Mechanics Fatigue Studies of Double Angle Railway Bridge Connections

本研究是对铁路双角桥梁连接进行全尺寸试验，通过监测裂缝的发展和扩展来评估其疲劳强度。基于断裂力学方法建立疲劳可靠性模型。一个详细的有限元模型的连接也将开发。新的连接以及旧铁路桥的连接将被测试。这些连接将由美国铁路协会（AAR）提供，该协会对该项目表示了浓厚的兴趣，并将在调查中进行合作。＊＊＊

9312851 Maragakis This research is a study to perform full-scale tests of double angle railway bridge connections and evaluate their fatigue strength by monitoring the development and propagation of cracks. A fatigue reliability model will be developed based on the fracture mechanics approach. A detailed finite element model of the connections will also be developed. New connections as well as connections from older railway bridges will be tested. These connections will be supplied by the American Association of Railroads (AAR) which has expressed a strong interest in the project and will be cooperating in the investigation. ***