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Experimental and numerical investigation of flexural behavior of balsa core sandwich composite structures

  • Tuğberk Önal

    Dr. Tuğberk Önal received his PhD in Engineering Mechanics at Atatürk University, his MSC in Machine Theory and Dynamics degrees at Atatürk University and his BSc degree at Atatürk University Mechanical Engineering Department. He is currently member in the Hekimhan Mehmet Emin Sungur Vocational School, Malatya Turgut Özal University, Malatya, Turkey. His research interests include composites mechanic, fiber reinforced composites, sandwich composites, and failure analysis.

     ORCID logo EMAIL logo     and Şemsettin Temiz

    Dr. Şemsettin Temiz received his PhD in Engineering Mechanics and his MSC in Mechanical Engineering degrees at Atatürk University and his BSc degree at Firat University Mechanical Engineering Department. He was a Mechanical Engineering faculty member at Atatürk University from 1995 to 2011 and at Batman University 2012–2016 before joining İnönü Üniversity in 2016. Dr. Temiz has counseled ten graduate students (7 Ph.D.’s). He has published more than 50 refereed journal articles.
Published/Copyright: May 4, 2023
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Materials Testing
From the journal Materials Testing Volume 65 Issue 7

Abstract

The mechanical properties of bio-core sandwich composite structures fabricated in different configurations were investigated experimentally and numerically in this study. Balsa woods with thicknesses of 4, 6, 8, and 10 mm were used in the core element. Glass fiber/epoxy composites with 8 and 12 layers at [0°]2s, [0/90°]s, and [±45°]s fiber orientation zones were used on the bottom and top surfaces of the sandwich structure. The effects of external surface fiber arrangement variation, the number of layers, and core thickness increase on the flexural damage load of sandwich structures produced by the vacuum infusion method were investigated. For this purpose, a three-point bending test was applied to the sandwich specimens. Maximum damage load values were determined using the three-point bending test performed in accordance with ASTM C-393 standard. Experimental and numerical data were compared with the finite element model created in the ANSYS package program. As a result of the tests, the damaged specimens were visualized and the types of damage to the balsa wood and composite element were determined.

Keywords: balsa; composites sandwich; failure mode; flexural properties; glass fiber
Corresponding author: Tuğberk Önal, Malatya Turgut Özal University, Malatya 44210, Türkiye, E-mail:

Funding source: Scientific Research Projects Coordination Unit of Inonu University

Award Identifier / Grant number: FDK-2018-1249

About the authors

Tuğberk Önal

Dr. Tuğberk Önal received his PhD in Engineering Mechanics at Atatürk University, his MSC in Machine Theory and Dynamics degrees at Atatürk University and his BSc degree at Atatürk University Mechanical Engineering Department. He is currently member in the Hekimhan Mehmet Emin Sungur Vocational School, Malatya Turgut Özal University, Malatya, Turkey. His research interests include composites mechanic, fiber reinforced composites, sandwich composites, and failure analysis.

Şemsettin Temiz

Dr. Şemsettin Temiz received his PhD in Engineering Mechanics and his MSC in Mechanical Engineering degrees at Atatürk University and his BSc degree at Firat University Mechanical Engineering Department. He was a Mechanical Engineering faculty member at Atatürk University from 1995 to 2011 and at Batman University 2012–2016 before joining İnönü Üniversity in 2016. Dr. Temiz has counseled ten graduate students (7 Ph.D.’s). He has published more than 50 refereed journal articles.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The authors gratefully acknowledge that this study was supported by the Scientific Research Projects Coordination Unit of Inonu University (Project ID: FDK-2018-1249).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Published Online: 2023-05-04
Published in Print: 2023-07-26

© 2023 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. B-pillar design optimization under a crushing load
  3. Determination of residual stresses in metallic materials based on spherical indentation strain
  4. Design analysis and manufacture of a variable load effective wear machine
  5. Corrosion and wear resistance of the Al/steel dissimilar weld metals by using multi-principal filler materials
  6. Impact toughness improvement of high boron-chromium steel by different isothermal heat treatment durations
  7. Effect of different corrosive media on the corrosion resistance and mechanical properties of armor steel
  8. Design and analysis of lattice structure applied humerus semi-prosthesis
  9. Experimental and numerical investigation of flexural behavior of balsa core sandwich composite structures
  10. Investigating microstructural evolution and wear resistance of AISI 316L stainless steel cladding deposited over mild steel using constant current GMAW and pulsed current GMAW processes
  11. Dynamic recrystallization in friction stir welded AA2014 aluminium alloy joints to replace riveted joints
  12. Application performance of bio-based plasticizer for PVC automotive interior material
  13. Improving the wear resistance of the magnesium alloy WE43 by cold sprayed Ni–Al2O3 and Ni–Zn–Al2O3 coatings
  14. Multi-material additive manufacturing: investigation of the combined use of ABS and PLA in the same structure
  15. Material flow and mechanical properties of friction stir welded AA 5052-H32 and AA6061-T6 alloys with Sc interlayer
  16. Corrigendum to: Relationship between extrusion temperature and corrosion resistance of magnesium alloy AZ61
https://doi.org/10.1515/mt-2022-0375
Keywords for this article
balsa; composites sandwich; failure mode; flexural properties; glass fiber

Articles in the same Issue

  1. Frontmatter
  2. B-pillar design optimization under a crushing load
  3. Determination of residual stresses in metallic materials based on spherical indentation strain
  4. Design analysis and manufacture of a variable load effective wear machine
  5. Corrosion and wear resistance of the Al/steel dissimilar weld metals by using multi-principal filler materials
  6. Impact toughness improvement of high boron-chromium steel by different isothermal heat treatment durations
  7. Effect of different corrosive media on the corrosion resistance and mechanical properties of armor steel
  8. Design and analysis of lattice structure applied humerus semi-prosthesis
  9. Experimental and numerical investigation of flexural behavior of balsa core sandwich composite structures
  10. Investigating microstructural evolution and wear resistance of AISI 316L stainless steel cladding deposited over mild steel using constant current GMAW and pulsed current GMAW processes
  11. Dynamic recrystallization in friction stir welded AA2014 aluminium alloy joints to replace riveted joints
  12. Application performance of bio-based plasticizer for PVC automotive interior material
  13. Improving the wear resistance of the magnesium alloy WE43 by cold sprayed Ni–Al2O3 and Ni–Zn–Al2O3 coatings
  14. Multi-material additive manufacturing: investigation of the combined use of ABS and PLA in the same structure
  15. Material flow and mechanical properties of friction stir welded AA 5052-H32 and AA6061-T6 alloys with Sc interlayer
  16. Corrigendum to: Relationship between extrusion temperature and corrosion resistance of magnesium alloy AZ61
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