Fatigue of Engineering Plastics |
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Page 51
... produce fracture surfaces , it is not possible to compare fracture morphological features in the two cases . However , a comparison of fatigue markings produced by stable crack extension at different fre- quencies ( see Chapter 4 ) ...
... produce fracture surfaces , it is not possible to compare fracture morphological features in the two cases . However , a comparison of fatigue markings produced by stable crack extension at different fre- quencies ( see Chapter 4 ) ...
Page 52
... produce a thermal failure . 2.4 DEFLECTION - CONTROLLED TESTING Constant force or stress amplitude fatigue testing of unnotched and notched specimens is appropriate for the evaluation of materials chosen for components that will be ...
... produce a thermal failure . 2.4 DEFLECTION - CONTROLLED TESTING Constant force or stress amplitude fatigue testing of unnotched and notched specimens is appropriate for the evaluation of materials chosen for components that will be ...
Page 99
... produce a crack growth rate of some specific value as a function of temperature , they showed that △ K was a minimum at about – 50 ° C for both of these materials ( Fig . 3.14 ) . Kic was also shown to be a minimum at this temperature ...
... produce a crack growth rate of some specific value as a function of temperature , they showed that △ K was a minimum at about – 50 ° C for both of these materials ( Fig . 3.14 ) . Kic was also shown to be a minimum at this temperature ...
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