Fatigue of Engineering Plastics |
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Page 51
... samples to be lower than smooth ones , though the difference was not as great as that expected . They argued that the localized volume of highest stress at the notch root would generate less heat so that " ... higher fre- quencies can ...
... samples to be lower than smooth ones , though the difference was not as great as that expected . They argued that the localized volume of highest stress at the notch root would generate less heat so that " ... higher fre- quencies can ...
Page 68
... samples and to their use of a higher test frequency ( 26 versus 0.1 Hz ) , which would be expected to lessen any creep - enhanced damage during the fatigue test . A preliminary investigation of the effect of loading history on the ...
... samples and to their use of a higher test frequency ( 26 versus 0.1 Hz ) , which would be expected to lessen any creep - enhanced damage during the fatigue test . A preliminary investigation of the effect of loading history on the ...
Page 130
... sample would experi- ence greater cyclic strains and , therefore , more damage per cycle than the dry specimens . For this reason , the nylon 66 samples equilibrated at 50 % RH would be expected to exhibit inferior fatigue properties in ...
... sample would experi- ence greater cyclic strains and , therefore , more damage per cycle than the dry specimens . For this reason , the nylon 66 samples equilibrated at 50 % RH would be expected to exhibit inferior fatigue properties in ...
Contents
Fatigue Crack Propagation | 74 |
Fatigue Fracture Micromechanisms in Engineering Plastics | 146 |
Composite Systems | 184 |
Copyright | |
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Common terms and phrases
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 flaw 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