Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique
In the present research, the effects of delamination size and location on vibration characteristics of laminated composite beams are investigated both analytically and numerically. In the analytical method, the delaminated beam is modeled as four interconnected Euler–Bernoulli beams and the constrai...
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| Format: | Article |
| Language: | English |
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Semnan University
2014-11-01
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| Series: | Mechanics of Advanced Composite Structures |
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| Online Access: | https://macs.semnan.ac.ir/article_284_4c70a9824424ff464875bdcd4edb6fca.pdf |
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| author | Keyvan Torabi Mostafa Shariati-Nia Mohammad Heidari-Rarani |
| author_facet | Keyvan Torabi Mostafa Shariati-Nia Mohammad Heidari-Rarani |
| author_sort | Keyvan Torabi |
| collection | DOAJ |
| description | In the present research, the effects of delamination size and location on vibration characteristics of laminated composite beams are investigated both analytically and numerically. In the analytical method, the delaminated beam is modeled as four interconnected Euler–Bernoulli beams and the constrained and free mode models are both simulated. The differential stretching and the bending-extension coupling are considered in the formulation. Analytical expressions for displacement functions are presented in a simple form based on the basic standard trigonometric and hyperbolic functions. This new technique considerably simplifies the calculations regardless of the number of delaminations. In finite element method, delaminated composite beams are modeled in commercial finite element software, ABAQUS, and natural frequencies and mode shapes are extracted from the modal analysis. Analytical results are compared with finite element ones and available experiments in the literature. Finally, the generated database for different sizes and locations of delamination can be used to detect the existence of delamination in laminated composite beams and thento specify the size and location of delamination. |
| format | Article |
| id | doaj-art-3ec77705e9ff43debcebc6571a5f01f6 |
| institution | DOAJ |
| issn | 2423-4826 2423-7043 |
| language | English |
| publishDate | 2014-11-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Mechanics of Advanced Composite Structures |
| spelling | doaj-art-3ec77705e9ff43debcebc6571a5f01f62025-08-20T02:49:21ZengSemnan UniversityMechanics of Advanced Composite Structures2423-48262423-70432014-11-01129710610.22075/macs.2014.284284Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical TechniqueKeyvan Torabi0Mostafa Shariati-Nia1Mohammad Heidari-Rarani2Department of Mechanical Engineering, University of Kashan, Kashan, 87317-51167, IranDepartment of Mechanical Engineering, University of Kashan, Kashan, 87317-51167, IranDepartment of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, 81746-73441, IranIn the present research, the effects of delamination size and location on vibration characteristics of laminated composite beams are investigated both analytically and numerically. In the analytical method, the delaminated beam is modeled as four interconnected Euler–Bernoulli beams and the constrained and free mode models are both simulated. The differential stretching and the bending-extension coupling are considered in the formulation. Analytical expressions for displacement functions are presented in a simple form based on the basic standard trigonometric and hyperbolic functions. This new technique considerably simplifies the calculations regardless of the number of delaminations. In finite element method, delaminated composite beams are modeled in commercial finite element software, ABAQUS, and natural frequencies and mode shapes are extracted from the modal analysis. Analytical results are compared with finite element ones and available experiments in the literature. Finally, the generated database for different sizes and locations of delamination can be used to detect the existence of delamination in laminated composite beams and thento specify the size and location of delamination.https://macs.semnan.ac.ir/article_284_4c70a9824424ff464875bdcd4edb6fca.pdfcomposite beamsdelamination detectionvibration analysisbasic functionsfinite element method (fem) |
| spellingShingle | Keyvan Torabi Mostafa Shariati-Nia Mohammad Heidari-Rarani Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique Mechanics of Advanced Composite Structures composite beams delamination detection vibration analysis basic functions finite element method (fem) |
| title | Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique |
| title_full | Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique |
| title_fullStr | Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique |
| title_full_unstemmed | Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique |
| title_short | Modal Characteristics of Composite Beams with Single Delamination- A Simple Analytical Technique |
| title_sort | modal characteristics of composite beams with single delamination a simple analytical technique |
| topic | composite beams delamination detection vibration analysis basic functions finite element method (fem) |
| url | https://macs.semnan.ac.ir/article_284_4c70a9824424ff464875bdcd4edb6fca.pdf |
| work_keys_str_mv | AT keyvantorabi modalcharacteristicsofcompositebeamswithsingledelaminationasimpleanalyticaltechnique AT mostafashariatinia modalcharacteristicsofcompositebeamswithsingledelaminationasimpleanalyticaltechnique AT mohammadheidarirarani modalcharacteristicsofcompositebeamswithsingledelaminationasimpleanalyticaltechnique |