APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS

In order to select the reasonable failure criterion of post-buckling analysis of stiffened composite panels,Lstiffener specimen with long post-buckling histories was designed and crippling test was conducted. FEA model with the consideration of progressive failure was established. Load-strain curve...

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Main Authors: LIN GuoWei, LI XinXiang
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2020-01-01
Series:Jixie qiangdu
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Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.009
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author LIN GuoWei
LI XinXiang
author_facet LIN GuoWei
LI XinXiang
author_sort LIN GuoWei
collection DOAJ
description In order to select the reasonable failure criterion of post-buckling analysis of stiffened composite panels,Lstiffener specimen with long post-buckling histories was designed and crippling test was conducted. FEA model with the consideration of progressive failure was established. Load-strain curve and buckling load and damage load were also presented. An excellent agreement is found between the analytical prediction and the experimental data. And the failure mode predicted is also consistent with the test results. The validity of analysis method is proved. Five different failure criterions are adopted respectively in the FEM analysis and damage loads as well as failure modes is obtained. The analysis results indicate that the validity of different failure criterion would be verified to avoid arbitrary selection of them by combination of L-stiffener specimen test and simulation. This work can provide reference to the post-buckling design and analysis of stiffened composite panels.
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institution Kabale University
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publisher Editorial Office of Journal of Mechanical Strength
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series Jixie qiangdu
spelling doaj-art-eb02f40674e44309baba994b0b1eb6002025-01-15T02:27:48ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692020-01-014256557230607841APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELSLIN GuoWeiLI XinXiangIn order to select the reasonable failure criterion of post-buckling analysis of stiffened composite panels,Lstiffener specimen with long post-buckling histories was designed and crippling test was conducted. FEA model with the consideration of progressive failure was established. Load-strain curve and buckling load and damage load were also presented. An excellent agreement is found between the analytical prediction and the experimental data. And the failure mode predicted is also consistent with the test results. The validity of analysis method is proved. Five different failure criterions are adopted respectively in the FEM analysis and damage loads as well as failure modes is obtained. The analysis results indicate that the validity of different failure criterion would be verified to avoid arbitrary selection of them by combination of L-stiffener specimen test and simulation. This work can provide reference to the post-buckling design and analysis of stiffened composite panels.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.009CompositePost-bucklingFEAFailure criterion
spellingShingle LIN GuoWei
LI XinXiang
APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS
Jixie qiangdu
Composite
Post-buckling
FEA
Failure criterion
title APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS
title_full APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS
title_fullStr APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS
title_full_unstemmed APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS
title_short APPLICABILITY INVESTIGATION OF FAILURE CRITERION FOR POST-BUCKLING ANALYSIS OF STIFFENED COMPOSITE PANELS
title_sort applicability investigation of failure criterion for post buckling analysis of stiffened composite panels
topic Composite
Post-buckling
FEA
Failure criterion
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.009
work_keys_str_mv AT linguowei applicabilityinvestigationoffailurecriterionforpostbucklinganalysisofstiffenedcompositepanels
AT lixinxiang applicabilityinvestigationoffailurecriterionforpostbucklinganalysisofstiffenedcompositepanels