Fatigue of Engineering Plastics |
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Page 28
... corresponding to the breakdown of the original spherulitic structure , @ / λ , Kg / mm2 3 2 W1 ޑ 1 T = 0 ° C W1 5 W2 = 90 ° C W2 10 15 Fig . 1.13 Separation of the differential work density σ / λ into the two components W1 and W2 . λ ...
... corresponding to the breakdown of the original spherulitic structure , @ / λ , Kg / mm2 3 2 W1 ޑ 1 T = 0 ° C W1 5 W2 = 90 ° C W2 10 15 Fig . 1.13 Separation of the differential work density σ / λ into the two components W1 and W2 . λ ...
Page 91
... corresponding to a jump frequency between 1 and 100 Hz for both materials ( Figs . 3.9a and 3.9b ) [ 64 ] . On the other hand , PMMA , which demonstrated a maximum frequency sensitivity factor at room temperature ( jump frequency≈ test ...
... corresponding to a jump frequency between 1 and 100 Hz for both materials ( Figs . 3.9a and 3.9b ) [ 64 ] . On the other hand , PMMA , which demonstrated a maximum frequency sensitivity factor at room temperature ( jump frequency≈ test ...
Page 221
... ( corresponding to the T ) . This peak was resolved into two com- ponents ; one was attributed to the development of a spectrum of relaxation 10 " 1010 E ' 10 100 E " , E ' ( dyne / cm2 ) 10 109 E " , E ' ( dyne / cm2 ) 108 ( a ) 107 ( b ) ...
... ( corresponding to the T ) . This peak was resolved into two com- ponents ; one was attributed to the development of a spectrum of relaxation 10 " 1010 E ' 10 100 E " , E ' ( dyne / cm2 ) 10 109 E " , E ' ( dyne / cm2 ) 108 ( a ) 107 ( b ) ...
Contents
Fatigue Crack Propagation | 74 |
Fatigue Fracture Micromechanisms in Engineering Plastics | 146 |
Composite Systems | 184 |
Copyright | |
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adhesive ASTM ASTM STP Bucknall carbon cfrp component composites constant crack growth rate crack length crack tip craze crystalline cyclic loading da/dN decrease deformation discontinuous growth bands discussed ductile dynamic mechanical effect elastic elastic modulus energy epoxy fatigue behavior fatigue crack growth fatigue crack propagation fatigue failure fatigue fracture fatigue tests FCP behavior FCP rates fibers fracture mechanics fracture surface fracture toughness frequency sensitivity hysteresis hysteretic heating increase J. A. Manson Kambour Kmax laminates loading cycles M. D. Skibo material matrix mean stress mm/cycle modulus molecular weight notched nylon 66 plastic zone PMMA polyacetal polycarbonate polymeric solids polystyrene properties PVDF R. W. Hertzberg Rabinowitz rubber S-N curve samples Section shear shown in Fig specimen spherulite static strain stress intensity factor stress level striations studies temperature rise tensile test frequency thermal failure tion toughening unnotched values viscoelastic yield strength ΔΚ