Zobrazit minimální záznam

dc.contributor.authorTippner, Jan
dc.contributor.authorPraus, Luděk
dc.contributor.authorBrabec, Martin
dc.contributor.authorSebera, Václav
dc.contributor.authorVojáčková, Barbora
dc.contributor.authorMilch, Jaromír
dc.date.accessioned2021-06-19T00:02:28Z
dc.date.available2021-06-19T00:02:28Z
dc.date.issued2019
dc.identifier43918068
dc.identifier.issn1618-8667 Sherpa/RoMEO, JCR
dc.identifier.urihttps://repozitar.mendelu.cz/xmlui/handle/20.500.12698/1332
dc.description.abstractAbrupt changes of climate have intensified during the last few decades, bringing higher risks from tree failures by either uprooting or stem breakage. To eliminate the risks, many techniques of tree assessment are being used. In the presented work, an optical technique based on 3D Digital Image Correlation (3D-DIC) was investigated as one of the tools to be used in identification of tree defects. Within the work, two ash trees were examined by pulling tests coupling 3D-DIC and standard techniques. The trees were measured in five consecutive steps of artificially made defects of two kinds - root and stem damage. We hypothesized defects can be identified using full-field strains and displacements. Results indicated that 3D-DIC provides comparable strains as standard semi-destructive extensometers. Statistical tests (α = 0.05) showed the 3D-DIC technique method is capable of identifying changes of displacements and strains after creating artificial defects in trees. However, despite the statistical differences, the practical arboricultural considerations of findings are still limited due to low absolute differences. The study also suggests there might exist path-dependency of the defect creation order when evaluating stiffness/strains from extensometers of two different positions. This could have impact on a practical assessment of tree stability in the future, but it must be further tested on larger data sets due to the proof-of-concept character of this work. In general, 3D-DIC brings extensive improvement in data acquisition quality and quantity, especially from the perspective of natural variability and heterogeneity in trees and wood.en
dc.format126513
dc.publisherElsevier GmbH
dc.relation.ispartofUrban Forestry & Urban Greening
dc.relation.urihttps://doi.org/10.1016/j.ufug.2019.126513
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectArboricultureen
dc.subjectOptical non-contact assessmenten
dc.subjectPulling testen
dc.subjectStrainen
dc.subjectTree defecten
dc.subjectTree-root systemen
dc.titleUsing 3D digital image correlation in an identification of defects of trees subjected to bendingen
dc.typeJ_ČLÁNEK
dc.date.updated2021-06-19T00:02:28Z
dc.description.versionOA-hybrid
local.identifier.doi10.1016/j.ufug.2019.126513
local.identifier.scopus2-s2.0-85074526424
local.identifier.wos000497127600038
local.numberDecember
local.volume46
local.identifier.obd43918068
local.identifier.e-issn1610-8167
dc.project.IDTA04020652
dc.project.IDNeinvazivní systém pro měření stability stromů a hodnocení jejich provozní bezpečnosti
dc.identifier.orcidTippner, Jan 0000-0001-8532-3690
dc.identifier.orcidPraus, Luděk 0000-0002-9541-7532
dc.identifier.orcidBrabec, Martin 0000-0001-5575-8925
dc.identifier.orcidSebera, Václav 0000-0002-2658-1179
dc.identifier.orcidVojáčková, Barbora 0000-0001-6433-8666
dc.identifier.orcidMilch, Jaromír 0000-0002-6970-0895
local.contributor.affiliationLDF


Soubory tohoto záznamu

Thumbnail

Tento záznam se objevuje v následujících kolekcích

Zobrazit minimální záznam

CC BY 4.0
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je CC BY 4.0