Strain rate effects on the compressive response of wood and energy absorption capabilities – Part A: Experimental investigations

Strain rate effect on wood material is of major interest when dealing with applications dedicated to energy absorption or wood machining. To understand and evaluate the strain rate influence on the wood responses, three experimental apparatus are used in order to cover a large range of strain rates,...

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Bibliographic Details
Published inComposite structures Vol. 149; pp. 315 - 328
Main Authors Wouts, J., Haugou, G., Oudjene, M., Coutellier, D., Morvan, H.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2016
Elsevier
Subjects
Composite structures
Compression
Densification
Energy absorption
Engineering Sciences
Hopkinson bars
Mechanical properties
Microstructure
Strain rate
Stresses
Wood
Compression
Hopkinson bars
Wood
Energy absorption
Strain rate
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Summary:Strain rate effect on wood material is of major interest when dealing with applications dedicated to energy absorption or wood machining. To understand and evaluate the strain rate influence on the wood responses, three experimental apparatus are used in order to cover a large range of strain rates, between 0.001 and 600s-1, and to allow observing densification regime for strains until 70%. The influence of strain rate on mechanical properties, in particular, initial crushing stress, plateau stress and specific absorbed energies is investigated in the three orthotropic directions for two wood species (spruce and beech) really different in terms of relative density and microstructure. It is noticed that wood properties are strain rate sensitive and this sensitivity depends on the loading direction.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2016.03.058