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Wood Science and Technology

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01.03.2013 | Original

J-integral evaluation in cracked wood specimen using the mark tracking method

verfasst von: Octavian Pop, Frédéric Dubois, Joseph Absi

Erschienen in: Wood Science and Technology | Ausgabe 2/2013

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Abstract

In this paper, an experimental analysis of the fracture parameters via the invariant J-integral for a cracked specimen made of wood is presented. The experimental test is realized using a sample made of Douglas fir loaded in opening mode. The sample geometry is a mix between the single edge notch and wedge splitting specimens, and the crack advances in the radial-longitudinal system, parallel to the wood rings. By using the optical mark tracking method, the displacement field evolution close to the crack tip is recorded during the test. The stress and strain fields are calculated using a finite element model generated from the experimental displacement fields. Further, the energy release rate is evaluated for different circular paths or crowns defined around the crack tip and for different loading values.

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Titel: J-integral evaluation in cracked wood specimen using the mark tracking method
verfasst von: Octavian Pop
Frédéric Dubois
Joseph Absi
Publikationsdatum: 01.03.2013
Verlag: Springer-Verlag
Erschienen in: Wood Science and Technology / Ausgabe 2/2013
Print ISSN: 0043-7719
Elektronische ISSN: 1432-5225
DOI: https://doi.org/10.1007/s00226-012-0488-5

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