Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements
Advances in wind risk require progress in understanding the uprooting process as a function of tree characteristics and soil material properties. Modelling tree anchorage mechanism has progressed with progresses in plant architecture modelling, but the estimation of anchorage strength is still limited. It depends on root architecture, root strength and soil condition (soil texture, water content, etc.). The present study reports developments in anchorage modelling with finite element method allowing incorporating failure behaviour of individual roots. During simulated tree overturning process, roots fail successively and cause global rupture in the tree mechanical response. The tree anchorage strength is thus identified and estimated. This model allows us to conduct numerical experiments to investigate the key factors involved in anchorage strength. This study is based on measurements of 3D root architecture and soil mechanical strength of Maritime pine cultivated in sandy soil. A sensitivity analysis was conducted on a simplified typical root system of Maritime pine representative of observed root systems. It aims to quantify the contribution related to morphological and material properties of roots and soil. Thus a picture of major elements influencing tree anchorage strength is proposed. (Texte intégral)
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dig-cirad-fr-5743162018-10-17T16:34:02Z http://agritrop.cirad.fr/574316/ http://agritrop.cirad.fr/574316/ Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements. Yang Ming, Defossez Pauline, Danjon Frédéric, Fourcaud Thierry. 2014. In : 7th IUFOR: Wind and Trees International Conference, Sao Paulo, Brazil, 3-8 August, 2014. s.l. : s.n., Résumé, 1 p. IUFRO 2014 Wind and Trees International Conference. 7, Sao Paulo, Brésil, 3 Août 2014/8 Août 2014. Researchers Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements Yang, Ming Defossez, Pauline Danjon, Frédéric Fourcaud, Thierry eng 2014 s.n. 7th IUFOR: Wind and Trees International Conference, Sao Paulo, Brazil, 3-8 August, 2014 K01 - Foresterie - Considérations générales U10 - Informatique, mathématiques et statistiques K70 - Dégâts causés aux forêts et leur protection Advances in wind risk require progress in understanding the uprooting process as a function of tree characteristics and soil material properties. Modelling tree anchorage mechanism has progressed with progresses in plant architecture modelling, but the estimation of anchorage strength is still limited. It depends on root architecture, root strength and soil condition (soil texture, water content, etc.). The present study reports developments in anchorage modelling with finite element method allowing incorporating failure behaviour of individual roots. During simulated tree overturning process, roots fail successively and cause global rupture in the tree mechanical response. The tree anchorage strength is thus identified and estimated. This model allows us to conduct numerical experiments to investigate the key factors involved in anchorage strength. This study is based on measurements of 3D root architecture and soil mechanical strength of Maritime pine cultivated in sandy soil. A sensitivity analysis was conducted on a simplified typical root system of Maritime pine representative of observed root systems. It aims to quantify the contribution related to morphological and material properties of roots and soil. Thus a picture of major elements influencing tree anchorage strength is proposed. (Texte intégral) conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/574316/1/document_574316.pdf application/pdf Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html |
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K01 - Foresterie - Considérations générales U10 - Informatique, mathématiques et statistiques K70 - Dégâts causés aux forêts et leur protection K01 - Foresterie - Considérations générales U10 - Informatique, mathématiques et statistiques K70 - Dégâts causés aux forêts et leur protection |
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K01 - Foresterie - Considérations générales U10 - Informatique, mathématiques et statistiques K70 - Dégâts causés aux forêts et leur protection K01 - Foresterie - Considérations générales U10 - Informatique, mathématiques et statistiques K70 - Dégâts causés aux forêts et leur protection Yang, Ming Defossez, Pauline Danjon, Frédéric Fourcaud, Thierry Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
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Advances in wind risk require progress in understanding the uprooting process as a function of tree characteristics and soil material properties. Modelling tree anchorage mechanism has progressed with progresses in plant architecture modelling, but the estimation of anchorage strength is still limited. It depends on root architecture, root strength and soil condition (soil texture, water content, etc.). The present study reports developments in anchorage modelling with finite element method allowing incorporating failure behaviour of individual roots. During simulated tree overturning process, roots fail successively and cause global rupture in the tree mechanical response. The tree anchorage strength is thus identified and estimated. This model allows us to conduct numerical experiments to investigate the key factors involved in anchorage strength. This study is based on measurements of 3D root architecture and soil mechanical strength of Maritime pine cultivated in sandy soil. A sensitivity analysis was conducted on a simplified typical root system of Maritime pine representative of observed root systems. It aims to quantify the contribution related to morphological and material properties of roots and soil. Thus a picture of major elements influencing tree anchorage strength is proposed. (Texte intégral) |
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K01 - Foresterie - Considérations générales U10 - Informatique, mathématiques et statistiques K70 - Dégâts causés aux forêts et leur protection |
author |
Yang, Ming Defossez, Pauline Danjon, Frédéric Fourcaud, Thierry |
author_facet |
Yang, Ming Defossez, Pauline Danjon, Frédéric Fourcaud, Thierry |
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Yang, Ming |
title |
Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
title_short |
Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
title_full |
Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
title_fullStr |
Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
title_full_unstemmed |
Understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
title_sort |
understanding tree root anchorage strength with finite element method including root architecture and soil strength measurements |
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http://agritrop.cirad.fr/574316/ http://agritrop.cirad.fr/574316/1/document_574316.pdf |
work_keys_str_mv |
AT yangming understandingtreerootanchoragestrengthwithfiniteelementmethodincludingrootarchitectureandsoilstrengthmeasurements AT defossezpauline understandingtreerootanchoragestrengthwithfiniteelementmethodincludingrootarchitectureandsoilstrengthmeasurements AT danjonfrederic understandingtreerootanchoragestrengthwithfiniteelementmethodincludingrootarchitectureandsoilstrengthmeasurements AT fourcaudthierry understandingtreerootanchoragestrengthwithfiniteelementmethodincludingrootarchitectureandsoilstrengthmeasurements |
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1758024288998260736 |