首页|Examining strain propagation in the branch unions of Quercus alba L. and Quercus montana Willd.
Examining strain propagation in the branch unions of Quercus alba L. and Quercus montana Willd.
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NSTL
Elsevier
? 2022Branch failure resulting from static loading events can be caused by ice, snow, or a climbing arborist aloft in a tree and can cause power outages, road blockages, costly property damage, or personal injury. In previous studies, researchers calculated bending stress to investigate the load-bearing capacity of branches. Yet, these calculations require geometric measurement of the wood that may not always be readily measure post failure. As stress and strain are linearly related, this study used static loading trials and digital image correlation to measure strain, tissue displacement, to gain insight on how loads move through the branch union zone. The results indicate that strain is located distally in the branches and diminishes through the branch union zone, suggesting that branch unions may serve a role in the damping of loads in trees.
NSTL
Elsevier
