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Memorias de investigación
Communications at congresses:
The analytical 3D influence of all kind of knots
Year:2012
Research Areas
  • Civil engineering and architecture
Information
Abstract
In this paper is presented the analytical 3D influence of all kind of knots, discerning the effect on the strength and the stress distribution of each geometric parameter separately. It was achieved parametrically by using a validated F.E. model which applies the flow-grain analogy in 3D. Size, position and conicity in face knots produce differences in M.O.R. about 64%, 69% and 300% respectively. In edge knots the stress orientation varies drastically from the face knots, and there may be changes on strength of 52% because of the size, and 24% due to the location. Inclination in face knots causes a transition from the face stress configuration to the typical stress distribution on edges, and can improve 60% the M.O.R. When there is global grain deviation in both faces and edges the strength can be reduced 52%, but if it is only in faces or edges it changes 42% and 26% respectively. The effect of eccentricity in flexural resistance was only 9%, but the influence of the rotation of the defects reached 44%.
International
Si
Congress
12th World Conference on Timber Engineering
960
Place
Auckland, Nueva Zelanda
Reviewers
Si
ISBN/ISSN
Start Date
16/07/2012
End Date
19/07/2012
From page
1
To page
2
Proceedings of 12th World Conference on Timber Engineering
Participants
  • Autor: P. Guindos (Univ. Santiago de Compostela)
  • Autor: Manuel Guaita Fernández (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Construcción con Madera
  • Departamento: Construcción y Vías Rurales
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