Bending fatigue life prediction of honeycomb sandwich structures
Composite sandwich panels possess the characterizations of lightweight and high load-bearing capacity. They also face diverse failure modes，and an in-depth study of their mechanical performance and failure mechanisms is essential to ensure structural safety and applicability. In this paper，three-poi...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2024-12-01
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| Series: | Hangkong gongcheng jinzhan |
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| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2024186 |
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| author | DONG Fan MA Weijie JI Haoran LI Yazhi ZHOU Chunping |
| author_facet | DONG Fan MA Weijie JI Haoran LI Yazhi ZHOU Chunping |
| author_sort | DONG Fan |
| collection | DOAJ |
| description | Composite sandwich panels possess the characterizations of lightweight and high load-bearing capacity. They also face diverse failure modes，and an in-depth study of their mechanical performance and failure mechanisms is essential to ensure structural safety and applicability. In this paper，three-point bending static and fatigue tests are carried out for the sandwich panels consist of plain weave glass fiber/cyanate fabric laminate and Nomex honeycomb by using a specially designed test fixture to investigate the bending-shear load capacity and fatigue performance of the panel，and observe the fatigue damage and failure phenomena. According to the internal stress states of the sandwich panel，fatigue damage models are established for the face panels subjected to in-plane stresses and the sandwich core subjected to out-of-plane shear. Substituting the honeycomb core by an equivalent solid finite element，the bending panel is discretized by using the solid finite elements. Then the bending fatigue lives of the sandwich panel are predicted by means of finite element analysis and cumulative fatigue damage analysis. Results show that the simulated bending fatigue performance of the sandwich panel correlate well with the experimental results. The predicted fatigue lives are a little conservative and acceptable. |
| format | Article |
| id | doaj-art-18be63e90267411e8ce285346b94ff27 |
| institution | Kabale University |
| issn | 1674-8190 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj-art-18be63e90267411e8ce285346b94ff272025-01-10T06:25:15ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902024-12-0115622423410.16615/j.cnki.1674-8190.2024.06.2110.16615/j.cnki.1674-8190.2024.06.21Bending fatigue life prediction of honeycomb sandwich structuresDONG Fan0MA Weijie1JI Haoran2LI Yazhi3ZHOU Chunping4School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaAviation Key Lab of Science and Technology on High Performance Electromagnetic Windows, AVIC Research Institute for Special Structures of Aeronautical Composites, Jinan 250104, ChinaMarine Design & Research Institute of China, Shanghai 200011, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaAviation Key Lab of Science and Technology on High Performance Electromagnetic Windows, AVIC Research Institute for Special Structures of Aeronautical Composites, Jinan 250104, ChinaComposite sandwich panels possess the characterizations of lightweight and high load-bearing capacity. They also face diverse failure modes，and an in-depth study of their mechanical performance and failure mechanisms is essential to ensure structural safety and applicability. In this paper，three-point bending static and fatigue tests are carried out for the sandwich panels consist of plain weave glass fiber/cyanate fabric laminate and Nomex honeycomb by using a specially designed test fixture to investigate the bending-shear load capacity and fatigue performance of the panel，and observe the fatigue damage and failure phenomena. According to the internal stress states of the sandwich panel，fatigue damage models are established for the face panels subjected to in-plane stresses and the sandwich core subjected to out-of-plane shear. Substituting the honeycomb core by an equivalent solid finite element，the bending panel is discretized by using the solid finite elements. Then the bending fatigue lives of the sandwich panel are predicted by means of finite element analysis and cumulative fatigue damage analysis. Results show that the simulated bending fatigue performance of the sandwich panel correlate well with the experimental results. The predicted fatigue lives are a little conservative and acceptable.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2024186honeycomb sandwich panelbending fatigue testfatigue damage modelfinite element modellinglife prediction |
| spellingShingle | DONG Fan MA Weijie JI Haoran LI Yazhi ZHOU Chunping Bending fatigue life prediction of honeycomb sandwich structures Hangkong gongcheng jinzhan honeycomb sandwich panel bending fatigue test fatigue damage model finite element modelling life prediction |
| title | Bending fatigue life prediction of honeycomb sandwich structures |
| title_full | Bending fatigue life prediction of honeycomb sandwich structures |
| title_fullStr | Bending fatigue life prediction of honeycomb sandwich structures |
| title_full_unstemmed | Bending fatigue life prediction of honeycomb sandwich structures |
| title_short | Bending fatigue life prediction of honeycomb sandwich structures |
| title_sort | bending fatigue life prediction of honeycomb sandwich structures |
| topic | honeycomb sandwich panel bending fatigue test fatigue damage model finite element modelling life prediction |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2024186 |
| work_keys_str_mv | AT dongfan bendingfatiguelifepredictionofhoneycombsandwichstructures AT maweijie bendingfatiguelifepredictionofhoneycombsandwichstructures AT jihaoran bendingfatiguelifepredictionofhoneycombsandwichstructures AT liyazhi bendingfatiguelifepredictionofhoneycombsandwichstructures AT zhouchunping bendingfatiguelifepredictionofhoneycombsandwichstructures |