Journals / Mathematical and Computational Applications / 2010 / Cilt: 15 - Sayı: 1

Strength of wheat and barley stems and design of new beam/columns

Pages
1–13
DOI
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AI Summary & Key Takeaways

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

It is found that stresses are more uniformly distributed in the new design with maximum stresses being lower than the conventional designs.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, physical and mechanical properties of wheat and barley stems are examined.
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Key Findings & Data:Transverse sections of the stems are magnified by a microscope and the material structure in the transverse sections are analysed with image processing programs.
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Conclusion & Impact:It is found that stresses are more uniformly distributed in the new design with maximum stresses being lower than the conventional designs.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, physical and mechanical properties of wheat and barley stems are examined. Transverse sections of the stems are magnified by a microscope and the material structure in the transverse sections are analysed with image processing programs. Geometric properties such as inner, outer radius, stem wall thickness and density variation of the material along the radius are measured and density variations are approximated by a mathematical model. Moment of inertia of the cross-sectional area which plays a vital role in resistance against bending and buckling is calculated approximately. Using the material density variations of the wheat (Triticum sativum L.) stems, new beam/columns are designed. Stress distributions in this new design and conventional designs of equivalent weight are compared using ANSYS program. It is found that stresses are more uniformly distributed in the new design with maximum stresses being lower than the conventional designs.

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Cite This Article

DEĞER, G., PAKDEMİRLİ, M., CANDAN, F., AKGÜN, S., BAYACI, H. (2010). Strength of wheat and barley stems and design of new beam/columns. Mathematical and Computational Applications, Cilt: 15 - Sayı: 1, 1–13. https://ajindex.com/articles/280326

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References (10)

  1. J. Gowin, Methods for determining geometry of cereal stalk cross-section, 6th International Conference on Agrophysics, Lubnin, Poland, 1977
  2. L. J. Gibson, M. F. Ashby, G. N. Karam, U. Wegst and H. R. Shercliff, The mechanical properties of natural materials. II. Microstructures for mechanical efficiency, Proc. R. Soc. Lond. A 450,141-162, 1995
  3. M. J. Crook and A. R. Ennos, Mechanical differences between free-standing and supported wheat plants, Triticum aestivum L., Annals of Botany 77, 197-202, 1996
  4. K. J. Niklas, Relative resistance of hollow, septate internodes to twisting and bending, Annals of Botany 80, 275-287, 1997
  5. P. R. Hornsby, E. Hinrichsen and K. Tarverdi, Preparation and properties of polyropylene composites reinforces with wheat and flax straw fibres: Part I Fibre characterization, Journal of Materials Science 32, 443-449, 1997
  6. H. A. Cleugh, J. M. Miller and M. Bohm, Direct mechanical effects of wind on crops, Agroforestry Systems 41, 85-112, 1998
  7. E. Kronbergs, Mechanical strength testing of stalk materials and compacting energy evaluation, Industrial Crops and Products 11, 211-216, 2000
  8. Y. Hirai, E. Inoue and K. Mori, Application of a quasi-static stalk bending analysis to dynamic response of rice and wheat stalks gathered by a combine harvester reel, Biosystems Engineering 88 (3), 281–294, 2004
  9. L. J. Gibson, Biomechanics of cellular solids, Journal of Biomechanics, 38, 377-399, 2005
  10. M. A. Dawson and L. J. Gibson, Optimization of cylindrical shells with compliant cores, International Journal of Solids and Structures 44, 1145-1160, 2007.