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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