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阎军

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Main positions:Deputy director of the Department of Engineering Mechanics
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Engineering Mechanics
Discipline:Engineering Mechanics. Computational Mechanics. Solid Mechanics. Aerospace Mechanics and Engineering. Design and Manufacture of Ship and Ocean Structure
Business Address:Room 305, Engineering Mechanics Department Building
Contact Information:0411-84706832
E-Mail:yanjun@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

热弹性点阵结构热应力多尺度分析及尺寸效应研究

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Indexed by:会议论文

Date of Publication:2013-08-19

Page Number:84-84

Key Words:热弹性;有限元法;热应力;等效温度;材料结构;尺寸效应;多尺度分析;构件应力;最小势能原理;机械载荷;

Abstract:考虑了点阵材料微单胞的绝对尺寸,应用扩展多尺度有限元法,对宏观上均匀的点阵材料构成的热弹性结构进行了多尺度分析。针对同时作用有机械载荷与温度载荷的点阵结构,基于最小势能原理,推导了拓展多尺度有限元法框架下的等效温度载荷表达式,采用多尺度计算方法模拟研究了热弹性点阵结构的宏观位移和微观构件应力。通过两端夹支的点阵材料平面梁算例,考察了拓展多尺度有限元预测点阵材料结构热应力的适用性;进而研