Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors
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 e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/4/1224 |
| _version_ | 1798005470634442752 |
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| author | Francisco J. Rescalvo Ignacio Valverde-Palacios Elisabet Suarez Andrés Roldán Antolino Gallego |
| author_facet | Francisco J. Rescalvo Ignacio Valverde-Palacios Elisabet Suarez Andrés Roldán Antolino Gallego |
| author_sort | Francisco J. Rescalvo |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-11T12:40:12Z |
| format | Article |
| id | doaj.art-44b95d14957a4618afbb816ef364ce11 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:40:12Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-44b95d14957a4618afbb816ef364ce112022-12-22T04:23:31ZengMDPI AGSensors1424-82202018-04-01184122410.3390/s18041224s18041224Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission SensorsFrancisco J. Rescalvo0Ignacio Valverde-Palacios1Elisabet Suarez2Andrés Roldán3Antolino Gallego4Department of Applied Physics, University of Granada, Campus Fuentenueva s/n, 18071 Granada, SpainDepartment of Building Constructions, University of Granada, Campus Fuentenueva s/n, 18071 Granada, SpainDepartment of Applied Physics, University of Granada, Campus Fuentenueva s/n, 18071 Granada, SpainDepartment of Electronics and Computer Technology, University of Granada, Campus Fuentenueva s/n, 18071 Granada, SpainDepartment of Applied Physics, University of Granada, Campus Fuentenueva s/n, 18071 Granada, SpainThis 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.http://www.mdpi.com/1424-8220/18/4/1224timbercarbon fiber compositesacoustic emission sensorsstructural monitoring |
| spellingShingle | Francisco J. Rescalvo Ignacio Valverde-Palacios Elisabet Suarez Andrés Roldán Antolino Gallego Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors Sensors timber carbon fiber composites acoustic emission sensors structural monitoring |
| title | Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors |
| title_full | Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors |
| title_fullStr | Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors |
| title_full_unstemmed | Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors |
| title_short | Monitoring of Carbon Fiber-Reinforced Old Timber Beams via Strain and Multiresonant Acoustic Emission Sensors |
| title_sort | monitoring of carbon fiber reinforced old timber beams via strain and multiresonant acoustic emission sensors |
| topic | timber carbon fiber composites acoustic emission sensors structural monitoring |
| url | http://www.mdpi.com/1424-8220/18/4/1224 |
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