A multi-physics approach for modeling hygroscopic behavior in wood low-tech architectural adaptive systems

Abdelmohsen, Sherif; Adriaenssens, Sigrid; El-Dabaa, Rana; Gabriele, Stefano; Olivieri, Luigi; Teresi, Luciano

doi:10.1016/j.cad.2018.07.005

Cited by 32 publications

(21 citation statements)

References 10 publications

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“…Se realizó un prototipo de una fachada higromórfica que se programaba para abrirse en condiciones de clima húmedo en el cielo nublado para dejar pasar más la luz del día y cerrar en condiciones secas bajo un cielo despejado. En este caso la propiedad higroscópica de la madera se empleó para desarrollar un recubrimiento arquitectónico que responde a los cambios en rango de humedad [8].…”

Section: Resultsunclassified

The use of wood as Smart Building Material = El uso de la madera como Smart Building Material

Guerrra

Avilés

2021

BMA

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One of the materials that plays a paper fundamental in the sector of construction in the wood, because to structure it has excellent properties mechanical that include high strength, good durability, high specific gravity and high moisture content. In the search for new sustainable materials with the environment, there is a need to look for new alternatives and intelligent construction systems, for which smart building materials are used and wood is one of them. The aim is to discover the new intelligent characteristics of wood and its use in construction. In addition to analyzing the progress in his research.

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Section: Resultsunclassified

The use of wood as Smart Building Material = El uso de la madera como Smart Building Material

Guerrra

Avilés

2021

BMA

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“…The authors show, despite the stress waves approach used, a great correlation between the cross-sectional variation and the modulus of elasticity of the wood studied, which roughly fits with the aims of this study. Based on previous studies (Brancheriau et al 2010;Jaskowska-Lemańska and Wałach 2016;Ramage et al 2017;Zeller et al 2017;Abdelmohsen et al 2019), it is logical to say that the mechanical behavior of wood is based on its micro-structural features, for example content of cellulose, fibril angles, and the annual growth rings.…”

Section: Introductionmentioning

confidence: 99%

Experimental assessment of the annual growth ring’s impact on the mechanical behavior of temperate and tropical species

Nziengui

Turesson

Pitti

et al. 2020

BioRes

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An innovative experimental protocol is presented, linking a nondestructive (on computed tomography scanner) and destructive approach (bending test on electrostatic press). This study aimed to evaluate the annual growth ring’s impact on the mechanical behavior of wood. The tests were carried out on temperate specimens (Pseudotsuga menziesii and Abies alba Mill) from the Massif Central Region of France and tropical specimens (Aucoumea klaineana Pierre, Milicia excelsa, and Pterocarpus soyauxii) from Gabon. The connection between the mechanical parameters, taken from these tests and their structural characteristics, are also highlighted. Based on these results, a database was formed of the annual growth ring’s impact on the mechanical characteristics of these species. A link was found between the annual growth ring and the mechanical and physical characteristics of the species. The number and width of the earlywood ring and its mechanical properties were also investigated for each type of species. This comparison and the link highlighted was possible due to the study of the impact of dry density’s specimens, considered in this work as an adjustment parameter on the study of the mechanical behavior of these species.

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“…Large shape changes can reciprocally be achieved by wood cross-ply laminates with layup (0°/90°), referred to as bilayers, when changing moisture content by either drying or wetting. Making use of the seeming inherent disadvantage of swelling and shrinkage of wood, thin wooden bilayers with fast dynamic responsiveness have recently been highlighted for diverse applications, predominantly as functional elements in biomimetic architecture (14)(15)(16)(17)(18)(19)(20)(21)(22)(23).…”

Section: Introductionmentioning

confidence: 99%

Analysis of hygroscopic self-shaping wood at large scale for curved mass timber structures

et al. 2019

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The growing timber manufacturing industry faces challenges due to increasing geometric complexity of architectural designs. Complex and structurally efficient curved geometries are nowadays easily designed but still involve intensive manufacturing and excessive machining. We propose an efficient form-giving mechanism for large-scale curved mass timber by using bilayered wood structures capable of self-shaping by moisture content changes. The challenge lies in the requirement of profound material knowledge for analysis and prediction of the deformation in function of setup and boundary conditions. Using time- and moisture-dependent mechanical simulations, we demonstrate the contributions of different wood-specific deformation mechanisms on the self-shaping of large-scale elements. Our results outline how to address problems such as shape prediction, sharp moisture gradients, and natural variability in material parameters in light of an efficient industrial manufacturing.

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A multi-physics approach for modeling hygroscopic behavior in wood low-tech architectural adaptive systems

Cited by 32 publications

References 10 publications

The use of wood as Smart Building Material = El uso de la madera como Smart Building Material

The use of wood as Smart Building Material = El uso de la madera como Smart Building Material

Experimental assessment of the annual growth ring’s impact on the mechanical behavior of temperate and tropical species

Analysis of hygroscopic self-shaping wood at large scale for curved mass timber structures

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