2018新材料国际发展趋势高层论坛

涂善东

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职位/职称: 教授

单位: 华东理工大学

报告论坛: 材料服役行为分论坛

报告题目: 复杂应力状态下蠕变损伤与裂纹扩展预测的研究

简历:

涂善东,华东理工大学教授、科学技术协会主席。1988年于南京化工学院化工机械专业获工学博士学位,1989-1990年西南交通大学力学所博士后,1990-1993年瑞典皇家理工学院客座科学家,1993-2001年南京工业大学副教授、教授。教育部长江学者奖励计划特聘教授(2001),国家杰出青年基金获得者(2002)。
围绕高温高压装备安全保障理论与技术,长期致力于高温强度及结构完整性理论的研究与实践探索,在拓展高温结构完整性理论、建立含缺陷结构安全评价方法等方面取得了较为系统的成果。获国家科技进步一等奖1项,国家科技进步二等奖3项,国家发明二等奖1项,省部级自然科学一等奖1项;出版著作3部;发表论文300余篇、获授权发明专利40余件。
兼任中国机械工程学会压力容器学会名誉理事长、材料学会名誉理事长、中国结构完整性联盟主席、诺丁汉大学名誉教授、国际压力容器学会亚太地区主席、国际机构学与机器科学联合会可靠性委员会委员、结构完整性联盟(英国)高级顾问;Int J Pressure Vessels & Piping, Applied Energy, J of Materials Science & TechnologyFatigue and Fracture of Engineering Materials and Structures压力容器、机械强度等学术期刊编委。

摘要:

An accurate prediction of the lifetime of components operating at high temperatures is the key to design, manufacture, operate and maintain them satisfactorily. However, its difficulty is increased significantly by the existence of multiaxial stress and defects (e.g. cracks). In the prestation, our recent work on high-temperature creep damage models and creep crack growth simulations were reviewed. The effects of stress level and stress state on creep rupture strain were discussed, following by a new multiaxial creep ductility model proposed base on power-law creep governed cavity growth theory. Then, creep crack growths in several structures, along with the interaction, propagation and combination of multiple surface cracks under creep conditions, were predicted by using strain-based damage mechanics models. Furthermore, an analysis technique for crack growth by grain boundary cavitation was developed and applied to simulate creep-fatigue and creep-fatigue-oxidation crack growths. The work provided useful supports for establishing the lifetime prediction method for components at high temperatures considering the effect of multiaxial stress and cracks. Also, a to-do list in the field was proposed.

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重要日期

会议开始时间

2018-09-16

会议结束时间

2018-09-18

报到时间

2018-09-16

poster提交截止日期

2018-08-30

报告人摘要提交截止日期

2018-08-25

联系方式

王方 
电话:029-86226599
传真:029-86282362
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王媛
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yuan209108@imr.ac.cn 

富甘霖(参展及赞助)
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高虹(财务)
电话:029-86226599
传真:029-86282362
zgcljz@126.com

 

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