【航宇大讲堂】Mechanical behaviors of functionally graded sandwich plates in thermal environments

作者:时间:2019-05-08浏览:571供图:审阅:来源:乐投Letou

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题目:Mechanical behaviors of functionally graded sandwich plates in thermal environments

报告人:李栋栋博士(航空学院航空航天交叉研究院)

时间:201958日(周三)10:30 AM

所在:明故宫校区A18-209集会室

主办单位:科协、航空学院、航空航天交叉研究院

报告会内容简介:

    Functionally graded (FG) sandwich structures are a class of novel sandwich structures. They are proposed to eliminate mechanically and thermally induced stresses due to the material property mismatch in conventional sandwich structures. The commonly used FG sandwich structures can be divided into two types: type-A, sandwich structures with FG face sheets and homogeneous core; type-B, sandwich structures with homogeneous face sheets and FG core. In practice, sandwich structures are always subjected to both mechanical and thermal load. Their mechanical behaviors in such conditions should be concerned. In this talk, the bending and buckling behaviors of FG sandwich plates are analyzed. A four-variable plate theory and a five-variable plate theory are extended to this study. The influence the stretching effect in bending is discussed. In addition, the relationship between the mechanical load and thermal load when buckling occurs is demonstrated.

报告人简介:

    李栋栋,讲师,20126月和20186月在乐投Letou划分获得学士和博士学位,专业工程力学 。201611-201711月受国家留学基金委资助赴法国图卢兹大学联合培养一年 。20189月入职乐投Letou交叉研究院 。目前研究偏向为新型夹层结构的力学行为剖析、多孔质料结构力学等,以第一作者宣布SCI论文5篇,为Thin-Walled StructuresMaterials Science & Engineering C等期刊审稿人 。


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