Fatigue of Engineering Plastics |
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Page 29
... greater the instability . For the attainment of maximum strength , this weakening must be successfully opposed by ... greater the probability of fracture in a specimen ; ( 2 ) the higher the concentration of stress , the greater the ...
... greater the instability . For the attainment of maximum strength , this weakening must be successfully opposed by ... greater the probability of fracture in a specimen ; ( 2 ) the higher the concentration of stress , the greater the ...
Page 67
... greater entanglement density and a propensity for greater orientation hardening of microfibrils that span the crack tip crazes . Both factors should stabilize the craze and prolong its cyclic life . The effect of molecular weight on ...
... greater entanglement density and a propensity for greater orientation hardening of microfibrils that span the crack tip crazes . Both factors should stabilize the craze and prolong its cyclic life . The effect of molecular weight on ...
Page 130
... greater temperature rise during a fatigue test than a dry sample . This temperature elevation , in turn , would result in a decrease in the modulus of nylon , the decrease being greater for the 50 % RH sample than for the sample in the ...
... greater temperature rise during a fatigue test than a dry sample . This temperature elevation , in turn , would result in a decrease in the modulus of nylon , the decrease being greater for the 50 % RH sample than for the sample in the ...
Contents
Fatigue Crack Propagation | 74 |
Fatigue Fracture Micromechanisms in Engineering Plastics | 146 |
Composite Systems | 184 |
Copyright | |
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Common terms and phrases
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