Fatigue of Engineering Plastics |
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Page 22
... creep is greater with intermittent than with a static load of the same magnitude ( see also Section 5.1.5 ) . He argues that the increase in compliance in monotonic creep is opposed by a small effect of aging with associated relaxation ...
... creep is greater with intermittent than with a static load of the same magnitude ( see also Section 5.1.5 ) . He argues that the increase in compliance in monotonic creep is opposed by a small effect of aging with associated relaxation ...
Page 68
... creep - enhanced damage during the fatigue test . A preliminary investigation of the effect of loading history on the fatigue life of polycarbonate has been reported recently by Mackey et al . [ 62 ] . They subjected fatigue bars to a ...
... creep - enhanced damage during the fatigue test . A preliminary investigation of the effect of loading history on the fatigue life of polycarbonate has been reported recently by Mackey et al . [ 62 ] . They subjected fatigue bars to a ...
Page 192
... creep due to both crazing and shear stress components are signif- icantly increased ; this observation has been interpreted in terms of an increase on the stress concentration factor in the Eyring creep equation , which governs creep in ...
... creep due to both crazing and shear stress components are signif- icantly increased ; this observation has been interpreted in terms of an increase on the stress concentration factor in the Eyring creep equation , which governs creep in ...
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