Journals / Bitlis Eren Üniversitesi Fen Bilimleri Dergisi / 2026 / Volume: 8 Issue: 2

Static Analysis of Orthotropic Euler-Bernoulli and Timoshenko Beams With Respect to Various Parameters

Mustafa Saraçoğlu(KÜTAHYA DUMLUPINAR ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0003-3842-5699
Gökhan Güçlü(KÜTAHYA DUMLUPINAR ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0003-2931-9501
Fethullah Uslu(KÜTAHYA DUMLUPINAR ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0001-8057-5119
Pages
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Publication Date
2019-06-28
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AI Summary & Key Takeaways

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

Results are also compared with steel which is an isotropic material and presented in the form of tables and graphs which may be useful.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, deflections of orthotropic beams along the beam length are calculated by using static analysis according to Euler-Bernoulli and Timoshenko beam theories.
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Key Findings & Data:Since the mechanical properties of the materials change as the orientation angle of fibers changes, the formulation is carried out using the equivalent Young’s modulus and the equivalent shear modulus.
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Conclusion & Impact:Results are also compared with steel which is an isotropic material and presented in the form of tables and graphs which may be useful.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Euler-Bernoulli Beam Theory · Timoshenko Beam Theory · Fiber Reinforced Composites

Abstract

In this study, deflections of orthotropic beams along the beam length are calculated by using static analysis according to Euler-Bernoulli and Timoshenko beam theories. Since the mechanical properties of the materials change as the orientation angle of fibers changes, the formulation is carried out using the equivalent Young’s modulus and the equivalent shear modulus. Orthotropic beams are modeled as isotropic beams by using equivalent moduli. Governing equations are derived. Two numerical examples with different orthotropic materials are given for different boundary and loading conditions. The effect of changing the orientation angle of the fibers on the deflection values is also considered. Orientation angle, material properties, length to depth ratio has been considered as parameters in the static analysis of orthotropic beams. Results are also compared with steel which is an isotropic material and presented in the form of tables and graphs which may be useful.

Özet

Bu çalışmada kiriş uzunluğu boyunca ortotrop kirişlerin çökmeleri Euler-Bernoulli ve Timoshenko kiriş teorilerine göre statik analiz yapılarak hesaplanmıştır. Malzemelerin mekanik özellikleri, liflerin oryantasyon açısına bağlı olarak değiştiği için, yönetici denklemlerin türetilmesi, eşdeğer elastisite modülü ve eşdeğer kayma modülü kullanılarak gerçekleştirilmiştir. Ortotrop kirişler eşdeğer modüller kullanılarak izotrop kirişler olarak modellenmiştir. Farklı ortotrop malzemelerden oluşan iki sayısal örnek farklı sınır koşulları ve yükleme durumları için verilmiştir. Liflerin oryantasyon açılarının değişiminin çökme değerlerine etkisi de ele alınmıştır. Ortotrop kirişlerin statik analizinde oryantasyon açısı, malzeme özellikleri, uzunluk-derinlik oranı parametreler olarak alınmıştır. Sonuçlar ayrıca izotrop olan çelik malzemesi ile karşılaştırılmış ve faydalı olabilecek tablo ve grafikler şeklinde sunulmuştur.

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Cite This Article

Saraçoğlu, M., Uslu, F. (2019). Static Analysis of Orthotropic Euler-Bernoulli and Timoshenko Beams With Respect to Various Parameters. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Volume: 8 Issue: 2. https://doi.org/10.17798/bitlisfen.495517

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References (13)

  1. Labuschange A., van Rensburg N.F.J., van der Merwe A.J. 2009. Comparison of linear beam theories, Mathematical and Computer Modelling, 49: 20-30. doi: 10.1016/j.mcm.2008.06.006
  2. Reddy J.N. 2010. Nonlocal nonlinear formulations for bending of classical and shear deformation theories of beams and plates, International Journal of Engineering Science 48, 1507–1518. doi: 10.1016/j.ijengsci.2010.09.020
  3. Sayyad A.S. 2011. Comparison of various refined beam theories for the bending and free vibration analysis of thick beams, Applied and Computational Mechanics 5, 217 – 230.
  4. Aykanat B.A. 2007. Investigation of a Cantilevered Bar Subjected to Uniformly Distributed Force in Nonlocal Elasticity. Istanbul Technical University, Graduate School of Science Engineering and Technology, Master Thesis, 29pp, Istanbul Turkey.
  5. Carrera E., Giunta G. 2010. Refined beam theories based on a unified formulation, International Journal of Applied Mechanics 2, 117–143. doi: 10.1142/S1758825110000500
  6. Elshafei M.A. 2013. FE modeling and analysis of isotropic and orthotropic beams using first order shear deformation theory, Materials Sciences and Applications 4, 77–102. doi: 10.4236/msa.2013.41010
  7. Whitney J.M. 1985. Elasticity analysis of orthotropic beams under concentrated loads, Composites Science and Technology 22, 167–184. doi: 10.1016/0266-3538(85)90031 4
  8. Li X.F. 2008. A unified approach for analyzing static and dynamic behaviors of functionally graded Timoshenko and Euler–Bernoulli beams, Journal of Sound and Vibration 318, 1210–1229. doi: 10.1016/j.jsv.2008.04.056
  9. Carrera E., Giunta G. and Petrolo M. 2011. Beam Structures: Classical and Advanced Theories 1st ed., John Wiley & Sons, New Delhi, India.
  10. Haque, A. 2016 http://www.clearlyimpossible.com/ahaque/timoshenko.pdf (Date of access: 30.01.2018)
  11. Reddy J.N. 2004. Mechanics of Laminated Composite Plates and Shells: theory and analysis 2nd ed., CRC Press, Florida, USA.
  12. Jones R.M. 1999. Mechanics of Composite Materials 2nd ed., Taylor & Francis, Philadelphia, USA.
  13. Saraçoğlu M.H., Güçlü G. and Uslu F. 2017 Static analysis of orthotropic beams by different beam theories, in Proc. 20th National Mechanical Congress (351-361pp) Bursa: Uludağ University