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Publication Detail
Probabilistic sensitivity analysis to understand the influence of micromechanical properties of wood on its macroscopic response
  • Publication Type:
    Journal article
  • Publication Sub Type:
  • Authors:
    Hristov PO, DiazDelaO FA, Saavedra Flores EI, Guzmán CF, Farooq U
  • Publication date:
  • Pagination:
    229, 239
  • Journal:
    Composite Structures
  • Volume:
  • Status:
  • Print ISSN:
© 2017 The Authors This paper investigates the influence of the uncertainty in different micromechanical properties on the variability of the macroscopic response of cross-laminated timber plates, by means of a probabilistic sensitivity analysis. Cross-laminated timber plates can be modelled using a multiscale finite element approach which although suitable, suffers from high computational cost. Investigating parametric importance can incur considerable time penalty since conventional sensitivity analysis relies on a large number of code evaluations to produce accurate results. In order to address this issue, we build a statistical approximation to the code output and use it to perform sensitivity analysis. We investigate the effect of a collection of parameters on the density and Young's moduli of wood. Additionally, the influence on the response of cross-laminated timber plates subject to bending, in-plane shear and compression loads is investigated due to its relevance within the engineering community. The presented results provide a practical insight into the importance of each micromechanical parameter, which allows research effort to be focused on important wood properties.
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