DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING
Composite stiffened panels always have defects at the bonding surface in preparation,which accelerates the debonding of the interface between skin and stringer,greatly affects the bearing capacity of the structure. The model of stiffened panel with prefabricated debonding at the interface of stiffen...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2020-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.030 |
| _version_ | 1797767695068823552 |
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| author | ZHANG Ru CHAI YaNan ZHANG Aying CHEN XiangMing |
| author_facet | ZHANG Ru CHAI YaNan ZHANG Aying CHEN XiangMing |
| author_sort | ZHANG Ru |
| collection | DOAJ |
| description | Composite stiffened panels always have defects at the bonding surface in preparation,which accelerates the debonding of the interface between skin and stringer,greatly affects the bearing capacity of the structure. The model of stiffened panel with prefabricated debonding at the interface of stiffened strip and skin was established with both cohesive zone model（ CZM）and virtual crack closure technique（ VCCT） in ABAQUS,and the rationality of model was verified by experiments. The distribution of energy release rate in prefabricated debonding leading edge was given and the effect of debonding position and area on stiffness and carrying capacity was analyzed. The results indicate that the contribution of type II energy release rate to damage initiation is the greatest; the bearing capacity of the prefabricated debonding structure is stronger than that is in the middle when it is located in outside; the carrying capacity of the structure decrease with the increase of prefabricated debonding area. |
| first_indexed | 2024-03-12T20:43:31Z |
| format | Article |
| id | doaj.art-d55d763839594ea3a24e9b2bf2e28be8 |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:43:31Z |
| publishDate | 2020-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-d55d763839594ea3a24e9b2bf2e28be82023-08-01T07:51:22ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692020-01-014271672230607930DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDINGZHANG RuCHAI YaNanZHANG AyingCHEN XiangMingComposite stiffened panels always have defects at the bonding surface in preparation,which accelerates the debonding of the interface between skin and stringer,greatly affects the bearing capacity of the structure. The model of stiffened panel with prefabricated debonding at the interface of stiffened strip and skin was established with both cohesive zone model（ CZM）and virtual crack closure technique（ VCCT） in ABAQUS,and the rationality of model was verified by experiments. The distribution of energy release rate in prefabricated debonding leading edge was given and the effect of debonding position and area on stiffness and carrying capacity was analyzed. The results indicate that the contribution of type II energy release rate to damage initiation is the greatest; the bearing capacity of the prefabricated debonding structure is stronger than that is in the middle when it is located in outside; the carrying capacity of the structure decrease with the increase of prefabricated debonding area.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.030Cohesive zone model;Virtual crack closure technique;Energy release rate;Debonding;Stiffness |
| spellingShingle | ZHANG Ru CHAI YaNan ZHANG Aying CHEN XiangMing DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING Jixie qiangdu Cohesive zone model;Virtual crack closure technique;Energy release rate;Debonding;Stiffness |
| title | DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING |
| title_full | DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING |
| title_fullStr | DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING |
| title_full_unstemmed | DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING |
| title_short | DAMAGE EXPANSION OF STIFFENED PANEL WITH PREFABRICATED DEBONDING |
| title_sort | damage expansion of stiffened panel with prefabricated debonding |
| topic | Cohesive zone model;Virtual crack closure technique;Energy release rate;Debonding;Stiffness |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2020.03.030 |
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