Fatigue of Engineering Plastics |
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Page 70
... occur . For example , it is known that early life failure due to thermal melting can occur in polymeric gears under load- controlled conditions [ 71-73 ] . A significant heat buildup along the pitch line of gear teeth can occur as a ...
... occur . For example , it is known that early life failure due to thermal melting can occur in polymeric gears under load- controlled conditions [ 71-73 ] . A significant heat buildup along the pitch line of gear teeth can occur as a ...
Page 101
... occur in PC when tested at 1 Hz . In fact , Attermo and Östberg [ 79 ] reported an increase in crack - tip temperature in PC of less than 30 ° C at 11 Hz . Consequently , a much smaller crack - tip temperature increase would be expected ...
... occur in PC when tested at 1 Hz . In fact , Attermo and Östberg [ 79 ] reported an increase in crack - tip temperature in PC of less than 30 ° C at 11 Hz . Consequently , a much smaller crack - tip temperature increase would be expected ...
Page 241
... occur [ Fig . 5.42 ] . ) In addition to the emissions count , the amplitude distribution and frequency spectrum may provide useful informa- tion [ 139 ] . With a well - made cfrp composite , emissions occur on the first cycle , and as ...
... occur [ Fig . 5.42 ] . ) In addition to the emissions count , the amplitude distribution and frequency spectrum may provide useful informa- tion [ 139 ] . With a well - made cfrp composite , emissions occur on the first cycle , and as ...
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