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Evolution of the accumulated damage along the envelope curve in the orthotropic directions of Pericopsis elata (Assamela)

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Author Affiliations

  • 1Laboratoire de Mécanique et de Modélisation des Systèmes Physiques (L2MSP), University of Dschang, Cameroon and Laboratoire d’Ingénierie des Systèmes Industriels et de l’Environnement, IUT-FV Bandjoun, Cameroon
  • 2Laboratoire d’Engineering Civil et Mécanique (LECM) Ecole Nationale Supérieure Polytechnique de Yaoundé BP 8390 Yaoundé
  • 3Laboratoire de Mécanique et de Modélisation des Systèmes Physiques (L2MSP), University of Dschang, Cameroon
  • 4Laboratoire de Mécanique et de Modélisation des Systèmes Physiques (L2MSP), University of Dschang, Cameroon
  • 5Laboratoire de Mécanique et de Modélisation des Systèmes Physiques (L2MSP), University of Dschang, Cameroon
  • 6Laboratoire d’Ingénierie des Systèmes Industriels et de l’Environnement, IUT-FV Bandjoun, Cameroon

Res. J. Engineering Sci., Volume 7, Issue (10), Pages 10-17, November,26 (2018)

Abstract

Several researches have been carried out to model the behavior of materials, among which the models based on the mechanics of damage which offers an interesting framework for modelling the behavior of wood material. In our work we used the Breccolotti model to describe the behavior of the damage as a function of the material deformation along the tangential, radial and longitudinal directions by introducing the influence of parameters of the stress-strain curve the said model. Then we evaluated the evolution of the modulus of elasticity as a function of the damage also in the three directions of orthotropic and finally we observed a kinetics with two phases of damage in the tangential and radial directions while a kinetics with three phases of damage were observed longitudinal direction.

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