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Mechanical Behavior of bark of sunflower for bio-composite applications

Abstract : This work consists in determining the mechanical behavior of bark of sunflower stem. Specimens were extracted at different locations in the stems and were conditioned in chambers of different relative humidity (RH) beforehand. In order to investigate the moisture variation within specimens during specimen’s installation to testing machine, moisture diffusion coefficients of specimens were deduced assuming Fick’s second law prior to mechanical tests. Results show that there was no significant moisture variation within specimens during specimen’s installation. Tensile tests have been performed on specimens. Results show that greater Young’s modulus was obtained for specimens extracted at higher location and conditioned at lower RH.
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Conference papers
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https://hal.inrae.fr/hal-02597202
Contributor : Migration Irstea Publications <>
Submitted on : Friday, May 15, 2020 - 10:18:29 PM
Last modification on : Wednesday, September 8, 2021 - 3:37:47 AM

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  • HAL Id : hal-02597202, version 1
  • IRSTEA : PUB00035742

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S. Sun, Jean-Denis Mathias, E. Toussaint, M. Grédiac. Mechanical Behavior of bark of sunflower for bio-composite applications. ECCM15 15th European Conference on Composite Materials, Jun 2012, Venise, Italy. pp.6. ⟨hal-02597202⟩

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