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Wood Science and Technology

, Volume 54, Issue 1, pp 161–186 | Cite as

Combining numerical models and discretizing methods in the analysis of bamboo parenchyma using finite element analysis based on X-ray microtomography

  • Felipe Luis PalombiniEmail author
  • Eduardo Lamb Lautert
  • Jorge Ernesto de Araujo Mariath
  • Branca Freitas de Oliveira
Original
  • 56 Downloads

Abstract

Plant cellular materials present a complex arrangement responsible for their properties; thus, investigating them is essential to understand their macro-performance. Noninvasive methods to investigate samples, such as X-ray microtomography (µCT), are of growing interest in the study of plants. Using µCT imaging in finite element analyses (FEA) is a preferred method for assessing cellular materials. However, little has been investigated concerning its application to plants. Numerical models were combined with µCT-based FEA of bamboo parenchyma under compressive loading. The models were used in the mechanical properties of the FEA, and two discretizing methods were compared: voxel-based and geometry-based. The influence of the parameters in the numerical models was analyzed. An explicit analysis was also carried out in the geometry-based model to evaluate the stress–strain relations of an axial compression, as well as the volume change in the parenchyma lumina during the test. The results suggest that parenchyma show greater strain in cell walls of axially neighboring cells, allowing us to estimate local compressive effects of cells near critical loading and to verify the deformation steps during quasi-static compression. This approach could be used to evaluate the mechanical behavior of other plant structures and cellular solids for materials and plant sciences.

Notes

Acknowledgements

The authors are grateful to Prof. Sidnei Paciornik from the Digital Microscopy and Image Analysis Group of the Chemical and Materials Engineering Department (DEQM/PUC-Rio) for conducting the μCT analysis. This work was supported by the National Council for Scientific and Technological Development (CNPq) (Grant Number 480701/2013-0).

Compliance with ethical standards

Conflict of interest

On behalf of all authors, the corresponding author states that there is no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Graduate Program in Design — PGDesignFederal University of Rio Grande do Sul — UFRGSPorto AlegreBrazil
  2. 2.Virtual Design Research Group — ViDFederal University of Rio Grande do Sul — UFRGSPorto AlegreBrazil
  3. 3.Plant Anatomy Laboratory — LAVeg, Department of BotanyFederal University of Rio Grande do Sul — UFRGSPorto AlegreBrazil

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