Skip to main content
SpringerLink
Log in

Influence of moisture content on mode I fracture process of Pinus pinaster: evolution of micro-cracking and crack-bridging energies highlighted by bilinear softening in cohesive zone model

  • Original
  • Published:
Wood Science and Technology Aims and scope Submit manuscript

Abstract

This paper is dedicated to the study of the effect of moisture content on fracture properties of wood through the corresponding effect on the softening function used in cohesive zone model to describe quasi-brittle failure of wood. Bi-linear softening parameters of cohesive zone model are estimated from equivalent linear elastic fracture mechanics resistance curve obtained from a significant number of fracture tests performed in mode I for a wide range of moisture contents (from 5 to \(30\%\) moisture). The evolution of the cohesive zone parameters as a function of the moisture exhibits a moisture dependence of the fracture properties of wood and especially the increase of the cohesive energy related to the crack-bridging phenomenon.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11

Similar content being viewed by others

References

  • Bažant ZP, Planas J (1998) Fracture and size effect in concrete and other quasibrittle materials. CRC Press, Boca Raton

    Google Scholar 

  • Boström L (1992) Method for determination of the softening behaviour of wood and the applicability of a nonlinear fracture mechanics model. PhD thesis, University of Lund

  • Coureau JL, Morel S, Gustafsson PJ, Lespine C (2006) Influence of the fracture softening behaviour of wood on load-COD curve and R-curve. Mater Struct 40(1):97–106

    Article  Google Scholar 

  • Coureau JL, Morel S, Dourado N (2013) Cohesive zone model and quasibrittle failure of wood: a new light on the adapted specimen geometries for fracture tests. Eng Fract Mech 109:328–340

    Article  Google Scholar 

  • de Moura M, Morais J, Dourado N (2008) A new data reduction scheme for mode I wood fracture characterization using the double cantilever beam test. Eng Fract Mech 75(13):3852–3865

    Article  Google Scholar 

  • Dourado N (2008) R-Curve behaviour and size effect of a quasibrittle material: wood. PhD thesis, Universite de Bordeaux I

  • Dourado N, Morel S, de Moura M, Valentin G, Morais J (2008) Comparison of fracture properties of two wood species through cohesive crack simulations. Compos Part A Appl Sci Manuf 39(2):415–427

    Article  Google Scholar 

  • Dourado N, de Moura M, Morais J, Silva M (2010) Estimate of resistance-curve in wood through the double cantilever beam test. Holzforschung 64(1):119–126

    Article  CAS  Google Scholar 

  • Guitard D (1987) Mécanique matériau bois et composites (Mechanics of wood and composites materials). Cepadues Editions, France

    Google Scholar 

  • Lamy F, Takarli M, Angellier N, Dubois F, Pop O (2015) Acoustic emission technique for fracture analysis in wood materials. Int J Fract Mech 192:57–70

    Article  CAS  Google Scholar 

  • Morel S, Dourado N, Valentin G, Morais J (2005) Wood: a quasibrittle material R-curve behavior and peak load evaluation. Int J Fract 131(4):385–400

    Article  Google Scholar 

  • Morel S, Coureau JL, Planas J, Dourado N (2010) Bilinear softening parameters and equivalent LEFM R-curve in quasibrittle failure. Int J Solids Struct 47(6):837–850

    Article  Google Scholar 

  • Phan NA (2016) Simulation of time-dependent crack propagation in a quasi-brittle material under relative humidity variations based on cohesive zone approach : application to wood. PhD thesis, University of Bordeaux

  • Prokopski G (1996) Influence of moisture content on fracture toughness of wood. Int J Fract 79(4):R73–R77

    Article  Google Scholar 

  • Reiterer A, Stanzl-Tschegg SE (2002) The influence of moisture content on the mode I fracture behaviour of sprucewood. J Mater Sci 37:4487–4491

    Article  CAS  Google Scholar 

  • Vasic S, Stanzl-Tschegg SE (2007) Experimental and numerical investigation of wood fracture mechanisms at different humidity levels. Holzforschung 61(4):367–374

    Article  CAS  Google Scholar 

  • Xavier J, Monteiro P, Morais J, Dourado N, de Moura M (2014a) Moisture content effect on the fracture characterisation of Pinus pinaster under mode I. J Mater Sci 49(21):7371–7381

    Article  CAS  Google Scholar 

  • Xavier J, Oliveira M, Monteiro P, Morais J, de Moura M (2014b) Direct Evaluation of Cohesive Law in Mode I of Pinus pinaster by Digital Image Correlation. Exp Mech 54:829–840

    Google Scholar 

Download references

Acknowledgements

The authors thank the French National Research Agency (ANR) for supporting the study through the Xyloplate project, Equipex XYLOFOREST (ANR-10-EQPX-16). This work is also supported by the Regional Council of Aquitaine and by the CODIFAB. Computational aspects of the study were performed at MCIA (Mésocentre de Calcul Intensif Aquitain) of the Université de Bordeaux and of the Université de Pau et des Pays de l’Adour.

Author information

Authors and Affiliations

  1. Dépt. Génie Civil et Environnemental (GCE), Institut de Mécanique et d’Ingénierie - Bordeaux (I2M), Université de Bordeaux, UMR 5295, Bordeaux, F-33000, France

    Ngoc Anh Phan, Myriam Chaplain, Stéphane Morel & Jean-Luc Coureau

Authors
  1. Ngoc Anh Phan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Myriam Chaplain
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Stéphane Morel
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Jean-Luc Coureau
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Ngoc Anh Phan.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Phan, N.A., Chaplain, M., Morel, S. et al. Influence of moisture content on mode I fracture process of Pinus pinaster: evolution of micro-cracking and crack-bridging energies highlighted by bilinear softening in cohesive zone model. Wood Sci Technol 51, 1051–1066 (2017). https://doi.org/10.1007/s00226-017-0907-8

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00226-017-0907-8

Keywords

Search

Navigation