Experimental analysis of acoustic anisotropy of green wood by using guided waves

Dikrallah Adil, Hakam Abdelillah, Kabouchi Bousselham, Brancheriau Loïc, Baillères Henri, Famiri Abderrahim, Ziani Mohsine. 2006. Experimental analysis of acoustic anisotropy of green wood by using guided waves. In : International Conference of the European Society for Wood Mechanichs (ESWM) and the Annual Meeting of COST Action E 35 , Florence, Italy, May 14-17th 2006. s.l. : s.n., pp. 149-154. ESWM and COST Action E35 Meeting, Florence, Italie, 14 May 2006/17 May 2006.

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Abstract : In this investigation we present an experimental analysis of the acoustic anisotropy of wood, in particular the dependence between the propagation velocities of stress waves and the natural anisotropy axis in the cross section. Wave velocities are measured on Douglas discs samples and on bars obtained from slicing discs. The experimentations are carried under cantilever conditions. Elasticity modulus and densities are determined in free vibrations. The results show a significant difference in propagation velocity between waves propagating in whole volume and waves guided on bars. Under cantilevering conditions the modulus of elasticity increases with the applied stress. The acoustic anisotropy of wood is discussed and the simulation of stress wave form was presented. (Résumé d'auteur)

Mots-clés Agrovoc : Propriété physicochimique, Bois, Élasticité, Propriété acoustique, Propriété technologique, Bois de charpente

Mots-clés complémentaires : Bois de construction, Bois d'oeuvre, Contrainte de croissance

Classification Agris : K50 - Processing of forest products

Auteurs et affiliations

  • Dikrallah Adil, Université Mohammed 5 (MAR)
  • Hakam Abdelillah, Université Mohammed 5 (MAR)
  • Kabouchi Bousselham, Université Mohammed 5 (MAR)
  • Brancheriau Loïc, CIRAD-FORET-UPR Bois tropicaux (FRA) ORCID: 0000-0002-9580-7696
  • Baillères Henri, CIRAD-FORET-UPR Bois tropicaux (AUS)
  • Famiri Abderrahim, CRF (MAR)
  • Ziani Mohsine, Université Mohammed 5 (MAR)

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