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This chapter describes principals of the stress wave applications to timber structures including sonic and ultrasonic techniques. Correlations between measured physical parameters and material properties are discussed. Stress waves can be applied in transverse and longitudinal directions and parameters such as velocity; time of flight and frequencies can be analyzed and correlated with elasticity...
This paper summarizes the test recommendations for in situ assessment of structural timber using stress wave measurements as developed by members of the RILEM Technical Committee AST 215 “In-situ assessment of structural timber”. In the first part, the basic principles, the equipment, and the practical application of stress-wave-based testing using the time-of-flight method are described. A detailed...
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