ResumenEl diseño de productos con alto valor agregado y el cálculo de estructuras en madera requieren de características elásticas confiables y relacionadas con un modelo teórico el cual explique de manera racional el comportamiento elástico de la madera. Se presentan la metodología y los resultados de la determinación experimental de las características elásticas de dos maderas canadienses: Acer rubrum y Abies balsamea. Las características examinadas fueron: módulos de elasticidad, módulos de rigidez y coeficientes de Poisson. Se realizaron experimentos de compresión, en el dominio elástico, de las direcciones de ortotropía de la madera: radial, tangencial y longitudinal. El contenido de humedad fue de 9% para A. rubrum y de 10% para A. balsamea. Las densidades de las maderas fueron de 651 kg/m 3 y 393 kg/m 3 respectivamente. A partir de las características obtenidas empíricamente, se analizaron las propiedades y las relaciones de ortotropía de la matriz de constantes elásticas del modelo elástico general. Los valores experimentales de las características elásticas de las maderas de A. rubrum y de A. balsamea, son comparables con valores correspondientes a estas maderas determinados en otros estudios. Igualmente, se demostró que los postulados de ortotropía del modelo elástico general son -con cierto nivel de confianza-válidos.Palabras clave: coeficiente de Poisson, modelo elástico, módulo de elasticidad, módulo de rigidez, ortotropía. AbtRActThis design of high value-added products and the calculus of structures in wood requires reliable elastic characteristics related to a theoretical model that explains in a rational way the elastic behavior of wood. This research presents the methodology and the results of the experimental determination of the elastic characteristics of two Canadian woods: Acer rubrum and Abies balsamea. The characteristics examined were modulus of elasticity, modulus of rigidity and Poisson's ratio. Compression tests within the elastic regime were performed in the orthotropic directions of wood: radial tangential and longitudinal. The moisture content of A. rubrum was 9% and 10% for A. balsamea. The densities were 651 kg/m 3 and 393 kg/m 3 respectively. With the empirically obtained characteristics, the properties and orthotropic relations of the elastic constants matrix of the general elastic model were analyzed. The experimental values of the elastic characteristics of A. rubrum and of A. balsamea woods are comparable with values corresponding to these woods determined in other studies. Likewise, it was proved that the orthotropic postulates of the general elastic model are -within some confidence level-valid.
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