Fatigue of Engineering Plastics |
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Page 93
... crack tip ; the bulk of the specimen experiences lower cyclical stresses and remains essentially at ambient temperature . Although heat transfer from the plastic zone to its cooler surrounding en- vironment might limit the rate of crack - ...
... crack tip ; the bulk of the specimen experiences lower cyclical stresses and remains essentially at ambient temperature . Although heat transfer from the plastic zone to its cooler surrounding en- vironment might limit the rate of crack - ...
Page 101
... crack - tip temperature rise can 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 ...
... crack - tip temperature rise can 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 ...
Page 129
... crack tip to permit blunting of the crack , thus decreasing the propor- tion of strain energy available for crack propagation , and lowering the FCP rate at a given AK . On saturation , however , gross plasticization un- doubtedly ...
... crack tip to permit blunting of the crack , thus decreasing the propor- tion of strain energy available for crack propagation , and lowering the FCP rate at a given AK . On saturation , however , gross plasticization un- doubtedly ...
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