Study and calibration of FBG sensors for the accurate strain monitoring of COPV

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Pereira, G (Author) Other; Faria, H (Author) Other; Frias, C (Author) Other; Frazao, O (Author) FCUP; Marques, AT (Author) Other

Conference proceedings International

Title: ECCM15

ECCM15 - 15TH EUROPEAN CONFERENCE ON COMPOSITE MATERIALS

Venice, Italy, 24-28 June

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-009-NZW

Abstract (EN): In this research programme methodologies to improve the accuracy in the results measured with embedded fibre Bragg gratings (FBG) sensors were studied and implemented in order to produce a composite overwrapped pressure vessel (COPV) prototype that incorporate a non-destructive sensing technologies. Using a carbon/epoxy prepreg system, test specimens were manufactured with longitudinally embedded FBG sensors. The combined behaviour of the sensors and the host material was characterized and a calibration rule (correction factor) was determined for the chosen material. The consistency of the results with both theoretical and empirical assumptions suggests that the proposed method is applicable to a wide range of FBG sensors and host materials. In this paper, the experimental setup and procedure used to assess to the calibration rule is addressed and further detailed.

Language: English

Type (Professor's evaluation): Scientific