Relationship between global and local modulus of elasticity beams of Argentinean eucalyptus grandis
Date
2003
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Abstract
En esta publicación se presentan los resultados de una investigación orientada a estudiar la relación
entre el Módulo de Elasticidad global y el local en madera aserrada de Eucalyptus grandis de
Argentina. Con este fin, se llevó a cabo un programa experimental con 50 vigas de tamaño
estructural sometidas a flexión. Los resultados obtenidos según las normas europeas muestran los
valores para ambos Módulos de Elasticidad y la influencia que sobre ellos ejercen las características
que más afectan su resistencia y rigidez, así como también dan evidencia de la efectividad del
criterio adoptado por la norma ASTM O 198 (1999) para corregir la influencia del esfuerzo de
corte sobre el Módulo de Elasticidad global.
The present paper reports the results of an investigation regarding the relationship between the global and the local Modulus of Elasticity in sawn tirnber of Argentinean Eitcalyptus grandis. Por this purpose an empirical research project with 50 beams in structural sizes subjected to bending was carried out. The results obtained according to European standards show the values of both types of Modulus of Elasticiry and the influence of the more important strength and stiffness reducing growth characteristics on their variation, as well as give evidence of rhe effectiveness of the criterion established in the American standard ASTM O 198 (1999) for correcting rhe influence of shear on the global Modulus of Elasticity.
The present paper reports the results of an investigation regarding the relationship between the global and the local Modulus of Elasticity in sawn tirnber of Argentinean Eitcalyptus grandis. Por this purpose an empirical research project with 50 beams in structural sizes subjected to bending was carried out. The results obtained according to European standards show the values of both types of Modulus of Elasticiry and the influence of the more important strength and stiffness reducing growth characteristics on their variation, as well as give evidence of rhe effectiveness of the criterion established in the American standard ASTM O 198 (1999) for correcting rhe influence of shear on the global Modulus of Elasticity.
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Keywords
Eucaliptus grandis, Módulo de elasticidad, Rigidez, Deformación por corte
Citation
Revista Maderas : ciencia y Tecnología (2) : 107-116 (2003).
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