TY - GEN
T1 - Development of instrumented composite cylinders
AU - Hernández-Moreno, H.
AU - Collombet, F.
AU - Douchin, B.
AU - Davies, P.
AU - González-Velázquez, J. L.
PY - 2007
Y1 - 2007
N2 - This paper describes a technique to fabricate instrumented composite cylinders made by the filament winding process and based on the insertion of Bragg grating sensors contained in an optical fiber, so that real time monitoring of the temperature and strain response can be made. The main advantage of this method is that, for the first time, the strain response of the wound layers as a function of time and temperature can be monitored during fabrication without alteration of the composite structure, since the sensor is a filament itself. The sensor data reveals the existence of several phenomena related to the manufacturing process and material response. The results show that during the curing stage of the fabrication of the composite cylinders there is a dimensional contraction without change in temperature which indicates that a material transformation occurs, and also that at the last stage there is a residual compressive strain which may affect the in-service behavior of the composite cylinder.
AB - This paper describes a technique to fabricate instrumented composite cylinders made by the filament winding process and based on the insertion of Bragg grating sensors contained in an optical fiber, so that real time monitoring of the temperature and strain response can be made. The main advantage of this method is that, for the first time, the strain response of the wound layers as a function of time and temperature can be monitored during fabrication without alteration of the composite structure, since the sensor is a filament itself. The sensor data reveals the existence of several phenomena related to the manufacturing process and material response. The results show that during the curing stage of the fabrication of the composite cylinders there is a dimensional contraction without change in temperature which indicates that a material transformation occurs, and also that at the last stage there is a residual compressive strain which may affect the in-service behavior of the composite cylinder.
KW - Bragg gratings
KW - Composite materials
KW - Filament winding
KW - Smart materials
UR - http://www.scopus.com/inward/record.url?scp=38349185923&partnerID=8YFLogxK
U2 - 10.4028/0-87849-446-4.59
DO - 10.4028/0-87849-446-4.59
M3 - Contribución a la conferencia
SN - 0878494464
SN - 9780878494460
T3 - Materials Science Forum
SP - 59
EP - 66
BT - Advanced Structural Materials III - Advanced Structural Materials Symposium of the Annual Congress of the Mexican Academy of Materials Science
PB - Trans Tech Publications Ltd
T2 - Advanced Structural Materials Symposium of the Annual Congress of the Mexican Academy of Materials Science
Y2 - 20 August 2006 through 24 August 2006
ER -