On the influence of load variations on lifetime and strength of wood

Lauge Fuglsang Nielsen

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    Abstract

    To days recommendations for probability and reliability analysis of wood structures do not fully recognize the influence of wood microstructure and creep on the mechanical behavior of wood. As a consequence, certain important features in wood design cannot be considered properly. Ignoring the basic materials behavior of wood cannot be ‘covered or replaced’ by purely mathematical handling of problems without loss of credibility. Some examples are considered in this note, which cannot be solved following present recommendations: - The influence of load variations on lifetime. - The influence of load history on recycle-strength (residual strength). It is demonstrated in this paper, how the problems just mentioned can be solved from respecting wood as a damaged viscoelastic material, meaning that wood is a cracked (damaged) material with creep.
    Original languageEnglish
    Title of host publicationProceedings of the International Conference on Integrated Approach to Wood Structure, Behavior and Applications
    Number of pages6
    PublisherDISTAF - Universitâ degli Studi di Firenze
    Publication date2006
    Pages95-103
    Publication statusPublished - 2006
    EventInternational Conference on Integrated Approach to Wood Structure, Behavior and Applications - Firenze, Italy
    Duration: 1 Jan 2006 → …

    Conference

    ConferenceInternational Conference on Integrated Approach to Wood Structure, Behavior and Applications
    CityFirenze, Italy
    Period01/01/2006 → …

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