Fatigue of Engineering Plastics |
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Page xv
... stress and strain damping = elastic modulus D = E Ed = dynamic elastic modulus γ = surface energy G = shear modulus I ( t ) J " = = K G - dU / da = strain energy release rate creep compliance loss compliance K = stress intensity factor ...
... stress and strain damping = elastic modulus D = E Ed = dynamic elastic modulus γ = surface energy G = shear modulus I ( t ) J " = = K G - dU / da = strain energy release rate creep compliance loss compliance K = stress intensity factor ...
Page 79
... Stress intensity factor solutions for ( a ) single edge - notched and ( b ) compact tensile specimens . [ R. W. ... stress intensity factor is given by K = σ ( πα ) 1/2 . ( 3.7 ) - 2 By combining Eqs . ( 3.3 ) and ( 3.7 ) , it is seen ...
... Stress intensity factor solutions for ( a ) single edge - notched and ( b ) compact tensile specimens . [ R. W. ... stress intensity factor is given by K = σ ( πα ) 1/2 . ( 3.7 ) - 2 By combining Eqs . ( 3.3 ) and ( 3.7 ) , it is seen ...
Page 81
... stress intensity factor , itself a function of stress and crack length , was the major controlling factor in the FCP process . This suggestion is totally con- sistent with the fact that the stress intensity factor controls static ...
... stress intensity factor , itself a function of stress and crack length , was the major controlling factor in the FCP process . This suggestion is totally con- sistent with the fact that the stress intensity factor controls static ...
Contents
Fatigue Crack Propagation | 74 |
Fatigue Fracture Micromechanisms in Engineering Plastics | 146 |
Composite Systems | 184 |
Copyright | |
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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