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| Equivalent models research and numerical analysis based on double curved honeycomb sandwich structure |
| Received:December 10, 2020 Revised:March 15, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20201210001 |
| KeyWord:sandwich structure curved honeycomb sandwich plates mechanical analysis equivalent models finite element |
| Author | Institution |
| 沈元星 |
大连理工大学 工业装备结构分析国家重点实验室 汽车工程学院, 大连 |
| 侯文彬 |
大连理工大学 工业装备结构分析国家重点实验室 汽车工程学院, 大连 |
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| Abstract: |
| Honeycomb sandwich structures have attracted great interest in lightweight design,and improved the related theoretical research continuously.However,most of the researches are concentrated on flat honeycomb sandwich structures and few consider the curved structures.In this paper,a double-curved honeycomb sandwich core is investigated by mechanical analysis,and an equivalent mechanical model is established.Detailed models of the honeycomb sandwich structure are established.Simultaneously,the corresponding equivalent models are built based on the sandwich theory and curved sandwich theory,respectively.Finally,to verify the accuracy of the equivalent mechanical model of the curved sandwich structures,the detailed models and the equivalent models are analyzed and compared under various working conditions through the finite element method.The results show that the equivalent mechanical model of the curved sandwich plates has better applicability to curved honeycomb sandwich structures,and it also applicable to nearly plane structures considerably. |
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