Combined non-destructive and destructive tests for the mechanical characterization of old structural timber elements

The paper deals with the mechanical identification of old timber members in structural size, based on combined non-destructive (NDT) and destructive tests (DT). An experimental activity has included on one hand several NDT investigations, using hygrometric, ultrasonic, sclerometric and resistographic methods, and on the other hand static tests, in compression parallel to the grain and in bending. Correlations between NDT and DT parameters are given by means of linear regression model.