Indexed by:期刊论文
Date of Publication:2014-06-15
Journal:固体火箭技术
Included Journals:EI、PKU、ISTIC、CSCD
Volume:37
Issue:3
Page Number:408-412,423
ISSN No.:1006-2793
Key Words:多级加筋板;极限承载;缺陷敏感度
Abstract:针对航空航天领域传统的加筋板结构，提出了一种新型多级加筋板结构形式。首先基于显式动力学方法，数值分析对比了相同质量的单级与多级加筋板在轴压工况下的极限承载能力，结果表明，多级加筋板的极限承载载荷值相较于单级加筋板提高约10％，进而分析了筋高比对完美多级加筋板极限承载能力的影响。以单点凹陷型缺陷为例，对加筋板开展了缺陷敏感度分析，考察了缺陷的幅值与位置对结构承载能力的影响，发现相较于单级加筋板，多级加筋板由于加筋形貌更为丰富，导致其局部抗弯刚度呈现周期性变化，可有效将缺陷诱发的局部失稳抑制在局部区域内，表现出更优异的抗缺陷能力，在此基础上最后分析了筋高比对含缺陷的多级加筋板极限承载能力的影响。
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Main positions:Professor
Other Post:工程力学系主任
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment
Discipline:Solid Mechanics. Aerospace Mechanics and Engineering. Computational Mechanics. Engineering Mechanics
Contact Information:haopeng@dlut.edu.cn
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