Journal
WOOD SCIENCE AND TECHNOLOGY
Volume 47, Issue 6, Pages 1117-1133Publisher
SPRINGER
DOI: 10.1007/s00226-013-0561-8
Keywords
-
Categories
Funding
- Centers of Excellence of the Academy of Finland
- Academy of Finland [138623]
- Academy of Finland (AKA) [138623, 138623] Funding Source: Academy of Finland (AKA)
Ask authors/readers for more resources
The mechanics of fresh wood with and without a fatigue pre-treatment that mimics a mechanical pulping process was experimentally studied. The mechanical properties of Norway spruce samples under compression are considered with the macroscopic stress-strain data and from local strain properties via digital image correlation technique. The results highlight the effects of the orientation of the wood annual rings compared to the loading direction and of the pre-fatigue. The wood presents a low yield point when the annual rings are tilted compared to the load axis, but the Young's modulus and yield stress are higher when the annual rings are either parallel or perpendicular to the load direction. In the last case, buckling of softest layers occurs. The fatigue treatment makes the wood less stiff as deduced from the decreases of Young's modulus and yield stress, whatever the orientation of annual rings. Secondly, it creates a thin and localized softened layer.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available