Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction
Previous studies have demonstrated the sensitivity of the dynamic behavior of carbon-fiber-reinforced plastic (CFRP) material over the carbon fiber direction by performing uniaxial excitation tests on a simple specimen. However, the variations in modal parameters (damping coefficient and resonance f...
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| Format: | Article |
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MDPI AG
2021-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/3/311 |
| _version_ | 1797540490797645824 |
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| author | Chan-Jung Kim |
| author_facet | Chan-Jung Kim |
| author_sort | Chan-Jung Kim |
| collection | DOAJ |
| description | Previous studies have demonstrated the sensitivity of the dynamic behavior of carbon-fiber-reinforced plastic (CFRP) material over the carbon fiber direction by performing uniaxial excitation tests on a simple specimen. However, the variations in modal parameters (damping coefficient and resonance frequency) over the direction of carbon fiber have been partially explained in previous studies because all modal parameters have only been calculated using the representative summed frequency response function without modal analysis. In this study, the dynamic behavior of CFRP specimens was identified from experimental modal analysis and compared five CFRP specimens (carbon fiber direction: 0°, 30°, 45°, 60°, and 90°) and an isotropic SCS13A specimen using the modal assurance criterion. The first four modes were derived from the SCS13A specimen; they were used as reference modes after verifying with the analysis results from a finite element model. Most of the four mode shapes were found in all CFRP specimens, and the similarity increased when the carbon fiber direction was more than 45°. The anisotropic nature was dominant in three cases of carbon fiber, from 0° to 45°, and the most sensitive case was found in Specimen #3. |
| first_indexed | 2024-03-10T13:01:37Z |
| format | Article |
| id | doaj.art-658b58f626e04b8db695850aa8260994 |
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| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T13:01:37Z |
| publishDate | 2021-03-01 |
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| series | Crystals |
| spelling | doaj.art-658b58f626e04b8db695850aa82609942023-11-21T11:27:42ZengMDPI AGCrystals2073-43522021-03-0111331110.3390/cryst11030311Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber DirectionChan-Jung Kim0Department of Mechanical Design Engineering, Pukyong National University, Busan 48513, KoreaPrevious studies have demonstrated the sensitivity of the dynamic behavior of carbon-fiber-reinforced plastic (CFRP) material over the carbon fiber direction by performing uniaxial excitation tests on a simple specimen. However, the variations in modal parameters (damping coefficient and resonance frequency) over the direction of carbon fiber have been partially explained in previous studies because all modal parameters have only been calculated using the representative summed frequency response function without modal analysis. In this study, the dynamic behavior of CFRP specimens was identified from experimental modal analysis and compared five CFRP specimens (carbon fiber direction: 0°, 30°, 45°, 60°, and 90°) and an isotropic SCS13A specimen using the modal assurance criterion. The first four modes were derived from the SCS13A specimen; they were used as reference modes after verifying with the analysis results from a finite element model. Most of the four mode shapes were found in all CFRP specimens, and the similarity increased when the carbon fiber direction was more than 45°. The anisotropic nature was dominant in three cases of carbon fiber, from 0° to 45°, and the most sensitive case was found in Specimen #3.https://www.mdpi.com/2073-4352/11/3/311carbon fiber directioncarbon-fiber-reinforced plasticmode shaperesonance frequencymodal assurance criterionimpact modal test |
| spellingShingle | Chan-Jung Kim Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction Crystals carbon fiber direction carbon-fiber-reinforced plastic mode shape resonance frequency modal assurance criterion impact modal test |
| title | Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction |
| title_full | Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction |
| title_fullStr | Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction |
| title_full_unstemmed | Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction |
| title_short | Comparison of Mode Shapes of Carbon-Fiber-Reinforced Plastic Material Considering Carbon Fiber Direction |
| title_sort | comparison of mode shapes of carbon fiber reinforced plastic material considering carbon fiber direction |
| topic | carbon fiber direction carbon-fiber-reinforced plastic mode shape resonance frequency modal assurance criterion impact modal test |
| url | https://www.mdpi.com/2073-4352/11/3/311 |
| work_keys_str_mv | AT chanjungkim comparisonofmodeshapesofcarbonfiberreinforcedplasticmaterialconsideringcarbonfiberdirection |