Page 393 - Engineered Interfaces in Fiber Reinforced Composites
P. 393

374                        Symbols and abbreviations

                    z              shear stress or strength
                                   apparent shear strength at the interphase
                                   interface shear bond  strength
                                   frictional shear stress at the interface
                                  matrix shear stress
                                   shear yield stress
                                   velocity of fiber pull-out
                    1)O
                    x              fraction of fibers broken when  > l,
                    SL             reinforcing effectiveness parameter
                    Y              phase angle
                    c              characteristic fiber length
                                   critical transfer length
                                   fiber debond length
                                   fiber pull-out length

                    AES            auger electron spectroscopy
                    AFMB           asymmetric four-point bending
                    AFM            atomic force microscopy
                    ANIMA          acrylonitrile/methyl acrylate
                    APS            aminopropyl triethoxysilane
                    BFRP           boron fiber reinforced polymer composites
                    BMA            polybutadiene-co-maleic  anhydride
                    BIW            boron (tungsten core) fiber
                    CAI            compressive strength after impact
                    CBEN           cantilever beam enclosed notch
                    cc             compliance calibration
                    CFRP           carbon fiber reinforced polymer composites
                    CLS            cracked lap shear
                    CMCs           ceramic matrix composites
                    CN             center notched
                    CTBN           carboxyl-terminated butadiene acrylonitrile
                    CTE            coefficient of thermal expansion
                    CVD            chemical vapor deposition
                    DCB            double cantilever beam
                    DGEBA          diglycidyl ether of bisphenol A
                    DZM            damage zone model
                    ELS            end loaded split
                    ENF            end notched flexure
                    EP             epoxy
                    ESCA           electron spectroscopy for chemical analysis
                    FAS            fiber axial stress
                    FEM            finite element method
                    . FPZ          fracture process zone
                    FTIR           fourier transform infrared spectroscopy
                    GA/MA          glycidyl acrylate/methyl acrylate
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