美国Ohio State University Herman Shen教授系列讲座（一）
讲座名称：
美国Ohio State University Herman Shen教授系列讲座（一）
讲座时间：
2015-07-06
讲座人：
Herman Shen
形式：
校区：
兴庆校区
实践学分：
讲座内容：
美国Ohio State University Herman Shen教授讲座通知（一）
应能源与动力工程学院热动力工程系主任袁奇教授的邀请，美国The Ohio State University，研究生办公室主任、理论与应用力学实验室主任Herman Shen教授于7月4日至7月11日来我校进行学术访问，并在期间举行系列学术讲座，欢迎各位老师和同学届时参加讲座并讨论交流。
讲座一：Needs and Challenges for Ensuring Structural Integrity,Reliability and Safety of Gas Turbine Engines – focus on Fatigue Life Assessment and Prediction Technology
讲座时间：2015年7月6日 上午9:00
讲座地点：能源馆220会议室
讲座人：Herman Shen教授
讲座内容:
As we are all aware of, engineered structures are susceptible to fatigue failure upon an excess of loading cycles, wherein the quantity of excess is dependent upon both the nature of the thermomechanical loading and the attendant material processes activated under prescribed operating conditions. Fatigue life assessment and prediction is difficult even for circumstances involving simple loading; as such, the juncture of intricate loading and hostile operating environment endemic to structures like gas turbine hardware presents a considerable obstacle. Nevertheless, the necessity of developing accurate lifing assessment and design tools for complex loading, hostile operating conditions, and material degradation cannot be ignored, as the fatigue failure of gas turbine components has been attributed to a variety of disasters and financial lost. For that, Dr. Shen has developed a novel energy-based lifing framework for assessing and prediction of fatigue (high cycle, low cycle, TMF, and creep-fatigue) lives under real world loading conditions. Dr. Shen’s research approach, in general, is trying to approach the structural lifing management problem based on simple energy theory which states: the total strain energy dissipated during both a quasi-static process and a dynamic process are equivalent. A summary of Dr. Shen’s contributions in the subject areas will be presented.
相关视频