Tangent modulus as a function of selected factors

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F18%3A77746" target="_blank" >RIV/60460709:41320/18:77746 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.compstruct.2018.02.052" target="_blank" >http://dx.doi.org/10.1016/j.compstruct.2018.02.052</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compstruct.2018.02.052" target="_blank" >10.1016/j.compstruct.2018.02.052</a>

Result language
angličtina
Original language name
Tangent modulus as a function of selected factors
Original language description
This paper contributes to the understanding of a stress - strain diagram (SSD) in the region beyond the elastic limit (Viscoelastic and Plastic region). According to our results, the SSD in this region can be approximated by a second degree parabola. The advantage of such an approach is the possibility to simply calculate the value of stress if the strain is known and vice versa. Another advantage is in the possibility to simply calculate the tangent modulus. In the experimental part we determined the tangent and chord moduli for beech (Fagus sylvatica L.) and aspen (Populus tremula L.) WS. We also investigated the influence of the following factors on their value: material thickness MT (4, 6, 10, and 18 mm), degree of densification DOD (10% and 20% of the original thickness), and the number of loading cycles NC (0 versus 10,000). The paper describes the behavior of the tangent modulus in the whole force - deflection diagram.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project
<a href="/en/project/EF16_019%2F0000803" target="_blank" >EF16_019/0000803: Advanced research supporting the forestry and wood-processing sector´s adaptation to global change and the 4th industrial revolution</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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