Wood - The Internal Optimization of Trees

Mattheck, C.; Kübler, H.

doi:10.1007/978-3-642-61219-0

Cited by 82 publications

(80 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Wood will be stronger in the radial direction as compared with tangential one, depending on the proportion of rays; essentially because rays, according Mattheck and Kubler (1995), "lock" growth rings preventing sliding. Burgert et al (1999) and Reiterer et al (2002) emphasize the biomechanical role of rays.…”

Section: Discussionmentioning

confidence: 99%

Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species

Longui

Rajput

Melo³

et al. 2017

Bosque (Valdivia)

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species

Longui

Rajput

Melo³

et al. 2017

Bosque (Valdivia)

View full text Add to dashboard Cite

“…In a straight trunk, the peripheral part of the normal wood is prestressed in tension (Boyd 1950a;Kubler 1987). These longitudinal tensile stresses compensate for the comparatively low compressive strength of wood and strengthen the tree against high wind loads (Mattheck & Kubler 1996). To enable the tree to direct growing organs towards a predetermined position, additional stresses have to be generated by specific wood tissues, so-called reaction wood.…”

Section: (B ) Movements Of Stem and Branchesmentioning

confidence: 99%

Actuation systems in plants as prototypes for bioinspired devices

Burgert

Fratzl

2009

Phil. Trans. R. Soc. A.

309

278

View full text Add to dashboard Cite

Plants have evolved a multitude of mechanisms to actuate organ movement. The osmotic influx and efflux of water in living cells can cause a rapid movement of organs in a predetermined direction. Even dead tissue can be actuated by a swelling or drying of the plant cell walls. The deformation of the organ is controlled at different levels of tissue hierarchy by geometrical constraints at the micrometre level (e.g. cell shape and size) and cell wall polymer composition at the nanoscale (e.g. cellulose fibril orientation). This paper reviews different mechanisms of organ movement in plants and highlights recent research in the field. Particular attention is paid to systems that are activated without any metabolism. The design principles of such systems may be particularly useful for a biomimetic translation into active technical composites and moving devices.

show abstract

“…According to Mattheck 34 , the circumferential pre-stress on a radial cross-section of a growing tree ( Fig. 8), would operate on the periphery just as the stress of compression (or of a rubber belt) would, whereas in the center of the tree, cellular compression involves longitudinal tension.…”

Section: -1 -Growth and Pre-stressmentioning

confidence: 99%

“…Just as a cylindrical balloon does during inflation, or as the femoral diaphyseal perichondrium does whose development might be guided by the tegumentary envelope of the thigh and its contents, before its conversion into the periosteum bone. The pneumatic 34 principle is a precise application of this mechanism. The walls of car tires are strong and resistant in order to withstand and transport the heaviest of loads; they do not buckle because they are pre-stressed for tensile stresses by the pressure inside the inflated tire.…”

Section: -1 -Growth and Pre-stressmentioning

confidence: 99%

“…Circumferential compression Figure 8 This schematic of a green (living) tree trunk shows how the mechanical equilibrium of the stress of growth developed within (circumferential compression and longitudinal tension), can compress the axial saw blade that axially cuts it along one of the annular rings (after Mattheck 34 ).…”

Section: Longitudinal Tension Growth Constraintsmentioning

confidence: 99%

See 1 more Smart Citation

Facial envelope, labium superior alaeque nasi morpho-physiologic integration and malocclusion

Talmant¹,

Deniaud²

2013

J Dentofacial Anom Orthod

View full text Add to dashboard Cite

By limiting its objective to correcting dysmorphisms of the dento-alveolar arches, current treatment of malocclusions loses a great deal of effectiveness that technical procedures might otherwise achieve. An inadequate understanding of the mechanics of the facial envelope can allow the dysmorphisms and breathing dysfunctions associated with malocclusions to persist.However, the oral fissure has a profound impact on the mechanical behavior of the facial envelope. Like an operational command, it transforms the local mechanics of the facial envelope by creating a phenomenon of a concentration of stress and deformations whose manifestations are visible not only on facial soft tissues, but also on their cartilage and osseous supports. This phenomenon also influences the physiology of the facial muscles by distorting them as they are forced to adapt to the fissure, and by guiding the functional adaptations of the envelope.

show abstract

Wood - The Internal Optimization of Trees

Cited by 82 publications

References 0 publications

Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species

Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species

Actuation systems in plants as prototypes for bioinspired devices

Facial envelope, labium superior alaeque nasi morpho-physiologic integration and malocclusion

Contact Info

Product

Resources

About