@misc{10481/55331, year = {2018}, month = {4}, url = {http://hdl.handle.net/10481/55331}, abstract = {This paper proposes the monitoring of old timber beams with natural defects (knots, grain deviations, fissures and wanes), reinforced using carbon composite materials (CFRP). Reinforcement consisted of the combination of a CFRP laminate strip and a carbon fabric discontinuously wrapping the timber element. Monitoring considered the use and comparison of two types of sensors: strain gauges and multi-resonant acoustic emission (AE) sensors. Results demonstrate that: (1) the mechanical behavior of the beams can be considerably improved by means of the use of CFRP (160% in bending load capacity and 90% in stiffness); (2) Acoustic emission sensors provide comparable information to strain gauges. This fact points to the great potential of AE techniques for in-service damage assessment in real wood structures.}, organization = {The experiments were supported by the companies DÁVILA Restauración de Monumentos and DRIZORO® S.A.U, under research contract No. 3546. The authors also gratefully acknowledge the important contribution of lab technicians David Jiménez and Ismael Romero.}, publisher = {MDPI}, keywords = {Timber}, keywords = {Carbon fiber composites}, keywords = {Acoustic emission sensors}, keywords = {Structural monitoring}, title = {Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors}, author = {Rescalvo Fernández, Francisco José and Valverde Palacios, Ignacio and Suárez, Elisabet and Roldán Aranda, Andrés María and Gallego Molina, Antolino}, }