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CARREIRA, M. R. Evaluation of bending stiffness of wood logs by mea ns of transverse vibration . 2012. 386 f. Thesis (Doctoral) – Escola de Engenh aria de São Carlos, Universidade de São Paulo, São Carlos, 2012. Before using the wood logs as a structural element is necessary to evaluate the mechanical properties of this material by visual in spection and mechanical testing. The transverse vibration technique has stood out among the other methods of Non-Destructive Evaluation for lumber to obtain accurate estimates of the bending modulus of elasticity. However, previous tests showed difficulties with th is technique to use it to evaluate the bending stiffness of logs. The aim of this work is to propose a test method to estimate the bending modulus of elasticity of wood logs by means of transverse vibration. The proposed method was tested and validated on a sample of 40 l ogs of Eucalyptus sp. It was obtained good correlation between the static bending and dyn amic modulus of elasticity obtained by transverse vibration test.

Avaliação da rigidez à flexão de toras de madeira por meio de vibração transversal