Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts
In the composite structure of spacecraft, the honeycomb sandwich structure is the basic bearing component used to bear and transmit loads. To explore the influencing factors on the bearing capacity of honeycomb sandwich structures, this study combines local tests and speckle measurement systems to c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/7/7/281 |
| _version_ | 1797588758376218624 |
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| author | Wei Sun Junyi Xiao Xuanwei Hu Baoxin Hao Huan Zhang Peng Zhang Tianhe Gao Kuo Tian |
| author_facet | Wei Sun Junyi Xiao Xuanwei Hu Baoxin Hao Huan Zhang Peng Zhang Tianhe Gao Kuo Tian |
| author_sort | Wei Sun |
| collection | DOAJ |
| description | In the composite structure of spacecraft, the honeycomb sandwich structure is the basic bearing component used to bear and transmit loads. To explore the influencing factors on the bearing capacity of honeycomb sandwich structures, this study combines local tests and speckle measurement systems to conduct tensile tests on 10 test specimens with different parameters. Firstly, a comprehensive assessment was conducted on the accuracy of the loading and measurement system, the rationality of the testing method, and the mechanical properties of the test piece. It was found that the maximum measurement error of the speckle measurement system did not exceed 0.01 mm, and the differences between the yield load and failure load measured using different inner diameters of the compression ring were 0.15% and 3.84%, respectively. This indicates that the measurement system is accurate and that the influence of the inner diameter of the compression ring can be ignored. Moreover, it was found that considering the accuracy retention ability of the structure under load, the allowable load of the embedded parts is about 90% of the yield load. Finally, the data of specimens with different parameters were compared and it was found that the strength of the honeycomb sandwich structure is directly proportional to the thickness of the skin, the density of the honeycomb core cells, and the size of the embedded parts. |
| first_indexed | 2024-03-11T00:57:38Z |
| format | Article |
| id | doaj.art-4e36687cbe474fb0b65fe116be545014 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-11T00:57:38Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-4e36687cbe474fb0b65fe116be5450142023-11-18T19:55:37ZengMDPI AGJournal of Composites Science2504-477X2023-07-017728110.3390/jcs7070281Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded PartsWei Sun0Junyi Xiao1Xuanwei Hu2Baoxin Hao3Huan Zhang4Peng Zhang5Tianhe Gao6Kuo Tian7Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, ChinaState Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaInstitute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, ChinaInstitute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, ChinaInstitute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, ChinaState Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, ChinaIn the composite structure of spacecraft, the honeycomb sandwich structure is the basic bearing component used to bear and transmit loads. To explore the influencing factors on the bearing capacity of honeycomb sandwich structures, this study combines local tests and speckle measurement systems to conduct tensile tests on 10 test specimens with different parameters. Firstly, a comprehensive assessment was conducted on the accuracy of the loading and measurement system, the rationality of the testing method, and the mechanical properties of the test piece. It was found that the maximum measurement error of the speckle measurement system did not exceed 0.01 mm, and the differences between the yield load and failure load measured using different inner diameters of the compression ring were 0.15% and 3.84%, respectively. This indicates that the measurement system is accurate and that the influence of the inner diameter of the compression ring can be ignored. Moreover, it was found that considering the accuracy retention ability of the structure under load, the allowable load of the embedded parts is about 90% of the yield load. Finally, the data of specimens with different parameters were compared and it was found that the strength of the honeycomb sandwich structure is directly proportional to the thickness of the skin, the density of the honeycomb core cells, and the size of the embedded parts.https://www.mdpi.com/2504-477X/7/7/281honeycomb sandwich structureembedded partsbearing capacityinfluencing factor |
| spellingShingle | Wei Sun Junyi Xiao Xuanwei Hu Baoxin Hao Huan Zhang Peng Zhang Tianhe Gao Kuo Tian Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts Journal of Composites Science honeycomb sandwich structure embedded parts bearing capacity influencing factor |
| title | Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts |
| title_full | Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts |
| title_fullStr | Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts |
| title_full_unstemmed | Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts |
| title_short | Study on Bearing Capacity of Honeycomb Sandwich Structure Embedded Parts |
| title_sort | study on bearing capacity of honeycomb sandwich structure embedded parts |
| topic | honeycomb sandwich structure embedded parts bearing capacity influencing factor |
| url | https://www.mdpi.com/2504-477X/7/7/281 |
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