Download
materials n.
Skip this Video
Loading SlideShow in 5 Seconds..
Materials PowerPoint Presentation

Materials

129 Vues Download Presentation
Télécharger la présentation

Materials

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Materials R. Bates

  2. Contents • What we said that we would do • What we have done • What is left to do from original list • New things to add

  3. What we said that we would do • Thermal conductivity measurements of bulk materials • Gather significant number of samples of existing materials and new materials • Irradiate • Prepare samples with different moisture content • Thermal conductivity measurements of adhesives and co-cured items • Prepare a range of co-cured samples • Prepare a range of adhesive samples • Irradiate • Young's Modulus measurements (in compression, tension and shear) • Collect and prepare samples • Irradiate • Prepare samples with different moisture content • Measurement of coefficient of thermal expansion • Prefect measurement techniques • Collect samples • Irradiate • Prepare samples with different moisture content

  4. What we have done • Thermal conductivity of bulk materials • PocoFoam and Allcomp foam • Measured in-plane and transverse conductivities • Measured in-plane for a range of temperatures (-30oC to 20oC) • Bus Tape • Have not irradiated samples for post-irradiation testing • No moisture absorption work • Thermal conductivity measurements of adhesives and co-cured items • Adhesives: Hysol, Hysol + BN, DC SE4445, IRS 2125 • Co-cured items: CFRP 3ply K13D2U and K13C2Ucyanate ester RS3 resin • Measured • Irradiated Hysol + BN • No moisture absorption work • Need to irradiated DC and IRS (or others) • Not done a proper survey of available adhesives

  5. What we have done • Young's Modulus measurements (in compression, tension and shear) • PocoFoam, Allcomp Foam, CFRP • More work on Allcomp required – Shear measurements • No post irradiation measurements • No moisture absorption work • Measurement of coefficient of thermal expansion • This has not really started

  6. New things to add to list • Thermal test of sandwich under shear stress • Done for PocoFoam, repeat for Allcomp • Foam to pipe interface • What is this resistance really? • What variation do we expect? • Understand in-plane conductivity in CFRP • Does it scale as we expect? • QA testing of CFRP to understand quality of uncured and cured materials • Follow up on Georg’s work • Need to understand available effort • Creep tests of DC4445 joint • Method in place with DMA, need effort at RAL • Strength of facing to honeycomb • Tim is following this work post irradiation • Bend tests of plank samples post irradiation • Tim is following this work