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Thermoforming of high performance thermoplastic composites
Author(s) -
Muzzy John D.,
Wu Xiang,
Colton Jonathan S.
Publication year - 1990
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750110505
Subject(s) - materials science , composite material , thermoforming , shear (geology) , transverse plane , simple shear , thermoplastic , fixture , isotropy , peek , bending , buckling , slip (aerodynamics) , void (composites) , quasistatic process , structural engineering , polymer , mechanical engineering , physics , quantum mechanics , engineering , thermodynamics
Matched‐die forming of a 90° bend in a quasi‐isotropic 16 ply laminate of ICI's APC‐2, containing 61 volume % Hercules AS‐4 continuous carbon fiber in poly(etheretherketone) (PEEK), is described. To uncouple and characterize elementary deformation phenomena, a series of simple tests are developed. Single ply bending of APC‐2 tape up to 420°C has been performed to characterize elastic bending. Transverse flow, axial interply shear flow, and z direction elasticity have been characterized in an instrumented matched die mold. Interply shear flow is characterized using a simple shear test fixture. Transverse flow and interply slip are relatively easily induced. Precautions should be taken to avoid fiber buckling and to provide for laminate reconsolidation.