FN Archimer Export Format PT J TI Entire Life Time Monitoring of Filament Wound Composite Cylinders Using Bragg Grating Sensors: III. In-Service External Pressure Loading BT AF HERNANDEZ-MORENO, H. COLLOMBET, F. DOUCHIN, B. CHOQUEUSE, Dominique DAVIES, Peter AS 1:1,2,3,4;2:1,2,3;3:1,2,3;4:5;5:5; FF 1:;2:;3:;4:PDG-DOP-DCB-ERT-MS;5:PDG-DOP-DCB-ERT-MS; C1 Univ Toulouse, F-31077 Toulouse, France. ISAE, UPS, Mines Albi, INSA, F-31077 Toulouse, France. IUT P Sabatier, ICA, F-31077 Toulouse, France. ESIME Unidad Ticoman, Inst Politecn Nacl, Mexico City 07340, DF, Mexico. IFREMER, Ctr Brest, Mat & Struct Grp, F-29280 Plouzane, France. C2 UNIV TOULOUSE, FRANCE ISAE, FRANCE UNIV TOULOUSE, FRANCE ESIME UNIDAD TICOMAN, MEXICO IFREMER, FRANCE SI BREST SE PDG-DOP-DCB-ERT-MS IN WOS Ifremer jusqu'en 2018 copubli-france copubli-univ-france copubli-int-hors-europe copubli-sud IF 0.935 TC 12 UR https://archimer.ifremer.fr/doc/2009/publication-7331.pdf LA English DT Article DE ;Underwater application;Filament winding;Residual stress;Smart materials;Polymer matrix composites (PMCs) AB This article is the third of three papers describing a study of the monitoring of filament wound composite cylinders for underwater applications. Part I described the technological issues and the development of specimens instrumented with embedded gratings and thermocouples, with the aim of monitoring the temperature and strain changes during the cylinder manufacturing presented in Part II. Residual strains are not negligible, over 1,000 axial micro-strain at the end of the curing cycle. Part III describes the response of these cylinders to hydrostatic pressure loading. The same embedded fiber optical Bragg gratings (FBGs) used for parts I and II of the study are here used as strain gauges. Their response is compared to that of classical resistive strain gages bonded to the inner surface of the tube. Results from these initial tests demonstrate the embedded FBG sensor's capability to monitor structural health of an underwater structure from fabrication throughout its service life. Embedded instrumentation records strains during pressure cycles up to final failure, without affecting the cylinder response. PY 2009 PD JUL SO Applied Composite Materials SN 0929-189X PU Springer VL 16 IS 3 UT 000266495300001 BP 135 EP 147 DI 10.1007/s10443-009-9082-x ID 7331 ER EF