复合材料加筋壁板压缩屈曲与后屈曲分析

TB332; 为了建立复合材料加筋壁板承受压缩载荷下屈曲、后屈曲和破坏整个失效过程的数值分析方法,对复合材料加筋壁板进行了压缩稳定性试验和有限元分析研究.采用特征值分析法对加筋壁板进行了屈曲分析,得到加筋壁板的屈曲模态、屈曲特征值及屈曲载荷;根据加载端的载荷-位移曲线采用弧长法(Riks),得到了弧长法的屈曲载荷及后屈曲承载路径;引入失效准则,得到后屈曲直至破坏的承载能力.对比两种有限元分析法与试验结果可以得到:加筋壁板的后屈曲承载能力很大,特征值法分析屈曲载荷较弧长法更精确,而弧长法可以更好模拟后屈曲行为,建立的分析法与试验结果吻合较好....

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Published in南京航空航天大学学报 Vol. 48; no. 4; pp. 563 - 568
Main Authors 李乐坤, 李曙林, 常飞, 石晓朋, 张铁军
Format Journal Article
LanguageChinese
Published 空军工程大学航空航天工程学院,西安,710038 2016
Subjects
Online AccessGet full text
ISSN1005-2615
DOI10.16356/j.1005-2615.2016.04.018

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Abstract TB332; 为了建立复合材料加筋壁板承受压缩载荷下屈曲、后屈曲和破坏整个失效过程的数值分析方法,对复合材料加筋壁板进行了压缩稳定性试验和有限元分析研究.采用特征值分析法对加筋壁板进行了屈曲分析,得到加筋壁板的屈曲模态、屈曲特征值及屈曲载荷;根据加载端的载荷-位移曲线采用弧长法(Riks),得到了弧长法的屈曲载荷及后屈曲承载路径;引入失效准则,得到后屈曲直至破坏的承载能力.对比两种有限元分析法与试验结果可以得到:加筋壁板的后屈曲承载能力很大,特征值法分析屈曲载荷较弧长法更精确,而弧长法可以更好模拟后屈曲行为,建立的分析法与试验结果吻合较好.
AbstractList TB332; 为了建立复合材料加筋壁板承受压缩载荷下屈曲、后屈曲和破坏整个失效过程的数值分析方法,对复合材料加筋壁板进行了压缩稳定性试验和有限元分析研究.采用特征值分析法对加筋壁板进行了屈曲分析,得到加筋壁板的屈曲模态、屈曲特征值及屈曲载荷;根据加载端的载荷-位移曲线采用弧长法(Riks),得到了弧长法的屈曲载荷及后屈曲承载路径;引入失效准则,得到后屈曲直至破坏的承载能力.对比两种有限元分析法与试验结果可以得到:加筋壁板的后屈曲承载能力很大,特征值法分析屈曲载荷较弧长法更精确,而弧长法可以更好模拟后屈曲行为,建立的分析法与试验结果吻合较好.
Author 常飞
石晓朋
李曙林
张铁军
李乐坤
AuthorAffiliation 空军工程大学航空航天工程学院,西安,710038
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Author_FL Chang Fei
Zhang Tiejun
Li Lekun
Li Shulin
Shi Xiaopeng
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Keywords 加筋壁板
arc-length method
屈曲
buckling
composite
复合材料
特征值法
post-buckling
弧长法
eigenvalue solver
stiffened panel
后屈曲
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Snippet TB332; 为了建立复合材料加筋壁板承受压缩载荷下屈曲、后屈曲和破坏整个失效过程的数值分析方法,对复合材料加筋壁板进行了压缩稳定性试验和有限元分析研究.采用特征值分析...
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Title 复合材料加筋壁板压缩屈曲与后屈曲分析
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