Smart materials in BTeV?

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Smart materials in BTeV?. Antonio Paolozzi University of Rome ‘La Sapienza’ INFN Laboratori Nazionali Frascati. OBJECTIVE Testing embedding Fiber Bragg Gratings (FBGs) into a Carbon Fiber Reinforced Plastic Composite (CFRP) - PowerPoint PPT Presentation

Transcript of Smart materials in BTeV?

  • Smart materials in BTeV?Antonio PaolozziUniversity of Rome La SapienzaINFN Laboratori Nazionali Frascati

  • OBJECTIVE

    Testing embedding Fiber Bragg Gratings (FBGs) into a Carbon Fiber Reinforced Plastic Composite (CFRP)

    Manufacturing a smart material that could be used in some BTeV applicationsPOSSIBLE APPLICATIONSSUPPORT STRUCTURES OF MICROSTRIPSUPPORT OF OTHER DETECTORS

  • LOW ATOMIC NUMBER AND HIGH MECHANICAL CHARACTERISTCS

    HIGH THERMAL STABILITY (VERY LOW THERMAL EXPANSION COEFFICIENT

    POSSIBILITY TO POSITION THE SENSORS IN ANY STRUCTURALLY SIGNIFICANT POINT IN THE STRUCTURE

    HIGHER RELIABILITY IN HANDLING SENSORIZED COMPONENTSWHY CFRP WITH EMBEDDED SENSORS?

  • MANUFACTURING PHASES

  • DIFFERENT SPECIMENS TO TEST SEVERAL EMBEDDING PROCEDURES

    AVOID FIBER DAMAGE

    OBTAIN OPTIMAL BONDING BETWEEN OPTICAL FIBER AND COMPOSITE STRUCTURE

  • Acrylate coated optical fiberUncoated optical fiberMicrographic analysis of embedded optical fiber

  • Micrographic analysis of optical fiberembedded with epoxy resin filmAcrylate coated optical fiberUncoated optical fiber

  • Experimental testStructural bonding between CFRP structure and FBG sensorFBG resolution (axial deformation) evaluation

  • Enforced displacement at steps of 100mmLinearity: excellent FBG-CFRP structural bondingResolution of axial deformation by FBG: better than 0.5mm

  • PLANNED TEST METALLIC BRACES HOLDING SUB-DETECTORS REPLACED BY CFRP SMART BRACES

  • CONCLUSIONSPERFECT BONDING BETWEEN FBGs AND CFRP WITH NO REDUCTION OF CFRP MECHANICAL CHARACTERISTICS