Composites crossword

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Across
  1. 4. Abbreviation for the parameter normally shown as eta subscript o (4)
  2. 5. Simple moulding processes (7)
  3. 9. Pressure vessel for composites processing (9)
  4. 13. Records, or the double bonded part of a chemical (5)
  5. 15. Equation for the strength of unidirectional composites (5,5)
  6. 16. The ring structure of epoxy resin(7)
  7. 19. Abbreviation for processes that bridge the gap between RTM and vacuum-bagging (4)
  8. 20. Thermosetting polyester (11)
  9. 21. The disciplne of using nature to inspire novel design (11)
  10. 25. Matrix for highest temperature performance composites (7)
  11. 27. Process for constant cross-section continuous fibre composites (10)
  12. 28. Where reinforcement meets matrix over a finite distance (10)
  13. 29. Initially backwards, xtra annual linseed fibre (4)
  14. 30. Expansion of "G" in "DGEBA" (8)
Down
  1. 1. A monomolecular layer from carbon fibre (8)
  2. 2. Smart materials and ----------- structures (11)
  3. 3. Material stiffness (7)
  4. 4. Image of a failed surface (11)
  5. 6. Nothing there, and not wanted (5)
  6. 7. Table of the elements (8)
  7. 8. Fibres from the plant stem (4)
  8. 10. This man's criteria constrain the values for Poisson's ratio (9)
  9. 11. Not the reinforcement, but an essential component of composites (6)
  10. 12. The expensive material form (7)
  11. 14. Short version of the glycol for marine polyester resins (3)
  12. 17. Generic term for an aromatic nylon (6)
  13. 18. Non-destructive imaging using heat (12)
  14. 22. Model for load transfer into individual filaments (5,3)
  15. 23. Abbreviation for the material in polyethylene fibres (6)
  16. 24. Filling the gap between sandwich faces (4)
  17. 26. Deforming slowly under sustained stress (5)