Viscoelasticity behavior of modern and aged wood
Open accessAbstract
In order to compare the mechanical behavior of the modern and old spruce wood (Picéa Abies), a microtensile test machine has been used. The size of the samples were 3x3x30 mm. Elastic, creep, relaxation and rupture tests under controlled temperature and relative humidity were carried out on the radial directions. Moreover, some micrographs have been done, in order to correlate the mechanical behavior with the structure. Preliminary results indicate that in general the global mechanical parameters, such as Young’s modulus and time dependent behavior of natural aged wood does not modify extremely. However, the rupture-stress of old wood shows a decrease of about 25%. These losses of strength in the old wood might be explained by the localized damages in the micro level of wood.
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A significant higher MOE was obtained for specimens from wood coming from a parquet floor, compared to wood coming from structural timber, suggesting a combined effect of age, load history and defect presence also on tensile properties.
“Moreover, a significant higher MOE was obtained for the specimens from wood coming from a parquet floor, compared to wood coming from structural timber, suggesting a combined effect of age, load history and defect presence also on tensile properties.”
From A review on the mechanical properties of aged wood and salvaged timber (2016) · cites this paper as [65]
Froidevaux et al. reported that it was not possible to observe a clear aging effect on tensile properties.
“Authors reported that it was not possible to observe a clear aging effect.”
From A review on the mechanical properties of aged wood and salvaged timber (2016) · cites this paper as [65]
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A review on the mechanical properties of aged wood and salvaged timber
Cavalli, A., Cibecchini, D., Togni, M., & Sousa, H. S. (2016) · Construction and Building Materials · doi:10.1016/j.conbuildmat.2016.04.001 · Cited by 155 · see citing works
- Authors
- Froidevaux, J., Volkmer, T., Anheuser, K., & Navi, P.
- ORCID
- Volkmer, Thomas
- Venue
- (:unav)
- Publisher
- (:unav)
- Published
- 2010-10
- OpenAlex
- W6945456308
- Cited by
- 2
- References
- 0
- Citations by year
- 2024: 1 · 2016: 1
- FWCI
- 0.00
- Type
- conference paper
- Language
- en
- Open access
- green
- doi.org
- Locations
- ARBOR - Bern University of Applied Sciences Repository (acceptedVersion)
- BFH: ARBOR
- Topics
- Physical Sciences › Engineering › Building and Construction › Wood Treatment and Properties
- Physical Sciences › Engineering › Building and Construction › Hygrothermal properties of building materials
- Physical Sciences › Materials Science › Polymers and Plastics › Natural Fiber Reinforced Composites
- Keywords
- aged wood, spruce wood, Norway spruce, creep, stress relaxation, rupture stress, Young's modulus, microtensile testing, wood microstructure, moisture content, temperature effects
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