Model for the Evaluation of the Dynamic Properties oF Prestressed Beams
DOI:
https://doi.org/10.70567/mc.v41i9.46Keywords:
Prestressed beam, Composite Material, Dynamics, DamageAbstract
The present work proposes a model for evaluating the dynamic properties of prestressed beams, focusing on the analysis of vibration frequency variation with the evolution of damage. It is essential to understand how their dynamic response varies to guarantee adequate performance and analyze their structural serviceability. The proposed model combines material resistance techniques with continuous damage mechanics and classic structural dynamics calculations. It characterizes the vibration properties of prestressed beams, addressing aspects such as the determination of the mechanical center, mechanical rigidity, and their evolution with damage during a 3-point bending test. The results obtained from the model are compared with experimental results obtained by subjecting the beams to different damage scenarios. It is expected that this approach will contribute to the development of more precise design strategies that are easy to apply and efficient for analyzing beams’ dynamic properties and optimizing them in specific scenarios.
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