SavedAdd your journal

Journals / Sakarya University Journal of Science / 2022 / Cilt: 26 Sayı: 4

An Investigation of the Influence of Various Shaped Cutouts on the Free Vibration Behavior of Sandwich Structures

Ufuk DEMİRCİOĞLU
Mutlu Tarık ÇAKIR
Pages
687–694
Publication Date
2022-08-31
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

From the results, it was observed that the changes of cutout shapes caused a significant decrease or increase in natural frequencies of sandwich structures beam depending on the cutout shape.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The current study deals with free vibration analysis of a sandwich beam in presence of different cutouts.
📊
Key Findings & Data:First 6 frequencies of the sandwich structures were determined for different cutout shapes to see the effect of cutout shapes on the free vibration behavior of sandwich structures.
💡
Conclusion & Impact:From the results, it was observed that the changes of cutout shapes caused a significant decrease or increase in natural frequencies of sandwich structures beam depending on the cutout shape.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:finite element method · free vibration · sandwich structure

Abstract

The current study deals with free vibration analysis of a sandwich beam in presence of different cutouts. PVC foam and glass fiber were used for the core and surface layers of the sandwich structures, respectively. First 6 frequencies of the sandwich structures were determined for different cutout shapes to see the effect of cutout shapes on the free vibration behavior of sandwich structures. For this, sandwich beams with different cutout shapes but with the same area were modeled. To see the effect of cutouts-shape only the shape of cutouts was changed and all other parameters were kept unchanged. Analyses were performed by using ANSYS apdl commercially available software. The analysis gives information about the influence of the cutout shape on the first six natural frequencies of the sandwich structures. From the results, it was observed that the changes of cutout shapes caused a significant decrease or increase in natural frequencies of sandwich structures beam depending on the cutout shape.

🔖

Cite This Article

DEMİRCİOĞLU, U., ÇAKIR, M. T. (2022). An Investigation of the Influence of Various Shaped Cutouts on the Free Vibration Behavior of Sandwich Structures. Sakarya University Journal of Science, Cilt: 26 Sayı: 4, 687–694. https://ajindex.com/articles/941133

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (12)

  1. C. Wick, Tool and Manufacturing Engineers Handbook: Materials, Finishing, and Coating, vol. 3. 1985
  2. K. N. Shivakumar, Argade, S. D., Sadler, R. L., Sharpe, M. M., Dunn, L., Swaminathan, G., & Sorathia, U. “Processing and properties of a lightweight fire resistant core material for sandwich structures,” Journal of Advanced Materials vol. 38, no. 1, pp. 32–38, 2006
  3. C. Chen, A. M. Harte, N. A. Fleck, “Plastic collapse of sandwich beams with a metallic foam core,” International Journal of Mechanical Sciences, vol. 43, no. 6, pp. 1483–1506, 2001
  4. A. Shahdin, L. Mezeix, C. Bouvet, J. Morlier, Y. Gourinat, “Fabrication and mechanical testing of glass fiber entangled sandwich beams: A comparison with honeycomb and foam sandwich beams,” Composite. Structures., vol. 90, no. 4, pp. 404–412, 2009
  5. N. Mishra, B. Basa, S. K. Sarangi, “Free vibration Analysis of Sandwich Plates with cutout,” IOP Conference Series: Materials Science and Engineering, vol. 149, no. 1, 2016
  6. H. K. Bhardwaj, J. Vimal, A. K. Sharma, “Study of Free Vibration Analysis of Laminated Composite Plates with Skew Cut-outs based on FSD,” Journal of Civil Engineering and Environmental Technology, vol. 1, no. 1, pp. 71–75, 2014
  7. S. Ramakrishna, K. M. Rao, and N. S. Rao, “Free vibration analysis of laminates with circular cutout by hybrid-stress finite element,” Composite. Structure., vol. 21, no. 3, pp. 177–185, 1992
  8. S. Chikkol Venkateshappa, P. Kumar, T. Ekbote, “Free vibration studies on plates with central cut-out,” CEAS Aeronaut. Journal., vol. 10, no. 2, pp. 623–632, 2019
  9. H. K. Bhardwaj, J. Vimal, A. K. Sharma, “Study of Free Vibration Analysis of Laminated Composite Plates with Skew Cut-outs based on FSDT,” Journal of Civil Engineering and Environmental Technology., vol. 1, no. 1, pp. 71–75, 2014
  10. J. Vimal, R. K. Srivastava, A. D. Bhatt, A. K. Sharma, “Free vibration analysis of functionally graded skew plates with circular cutouts,” International Journal of Engineering, Science and Technology., vol. 6, no. 3, 2014
  11. J. Vimal, R. K. Srivastava, A. D. Bhatt, A. K. Sharma, “Free vibration analysis of moderately thick functionally graded plates with multiple circular and square cutouts using finite element method,” Journal of Solid Mechanics, vol. 7, no. 1, pp. 83–95, 2015
  12. Maharudra, B. Arya, T. Rajanna, “Effect of trapezoidal shaped laminated composite plate with and without cutout on vibration characteristics,” Materials Today: Proceedings, vol.