دورية أكاديمية
Evaluation of Laminated Composite Beam Theory Accuracy
| العنوان: | Evaluation of Laminated Composite Beam Theory Accuracy |
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| المؤلفون: | Yu-Ting Lyu, Tsung-Pin Hung, Her-Chang Ay, Hsiu-An Tsai, Yih-Cherng Chiang |
| المصدر: | Materials, Vol 15, Iss 19, p 6941 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Technology LCC:Electrical engineering. Electronics. Nuclear engineering LCC:Engineering (General). Civil engineering (General) LCC:Microscopy LCC:Descriptive and experimental mechanics |
| مصطلحات موضوعية: | CFRP, UAV, laminated composite beam, finite element analysis, effective stiffness, Technology, Electrical engineering. Electronics. Nuclear engineering, TK1-9971, Engineering (General). Civil engineering (General), TA1-2040, Microscopy, QH201-278.5, Descriptive and experimental mechanics, QC120-168.85 |
| الوصف: | Carbon fiber-reinforced polymer (CFRP) has been widely implemented in electric vehicle bodies and aircraft fuselage structures. The purpose of CFRP is to reduce the weight and impart rigidity in the final product. A beam structure is typically used to bear the structural load, and the rigidity of the beam can be changed by arranging the laminated fibers at different angles. In this study, a composite I-beam is used as an example in engineering components. Because the theoretical model of the superimposed composite I-beam is established, the theoretical formula is based on the theoretical assumptions of the two-dimensional composite beam, and is combined with the traditional composite plate theory to analyze the maximum bending stress, strain, and deflection. During the theoretical derivation, it is assumed that the flanges of the I-beams are divided into narrow and wide flanges. The beams are considered as structures of beams and flatbeds. When a narrow flange is loaded in the side, the wide flange has no lateral deformation, and the lateral moments are neglected. Therefore, the accuracy of this formula needs to be verified. The purpose of this study is to verify the accuracy of theoretical solutions for the deflection and stress analysis of composite beams. A finite element analysis model is used as the basis for comparing the theoretical solutions. The results indicate that when the aspect ratio of the beam is >15, the theoretical solution will have better accuracy. Without the addition of the material, when 0° ply is placed on the outermost layer of the flange of the nonsymmetric beam, the effective rigidity of the beam is increased by 4–5% compared with the symmetrical beam. The accuracy range of the theoretical solution for the composite beams can be accurately defined based on the results of this study. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 15196941 1996-1944 |
| Relation: | https://www.mdpi.com/1996-1944/15/19/6941; https://doaj.org/toc/1996-1944 |
| DOI: | 10.3390/ma15196941 |
| URL الوصول: | https://doaj.org/article/6f5820649f654c10a3eb86f4cc657eab |
| رقم الأكسشن: | edsdoj.6f5820649f654c10a3eb86f4cc657eab |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15196941 19961944 |
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| DOI: | 10.3390/ma15196941 |