Fatigue of Engineering Plastics |
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Page 81
... crack growth rate per cycle da / dN is determined from such a curve at any value of crack length by graphical procedures or by computation . For most specimen configurations , the crack growth rate increases with increasing crack length ...
... crack growth rate per cycle da / dN is determined from such a curve at any value of crack length by graphical procedures or by computation . For most specimen configurations , the crack growth rate increases with increasing crack length ...
Page 99
... crack growth rates at 1 Hz increased with decreasing temperature down to -50 ° C and then decreased with a further drop in test temperature . By plotting the AK level necessary to produce a crack growth rate of some specific value as a ...
... crack growth rates at 1 Hz increased with decreasing temperature down to -50 ° C and then decreased with a further drop in test temperature . By plotting the AK level necessary to produce a crack growth rate of some specific value as a ...
Page 112
... crack - tip profile as was the case in strain crystallizable rubbers . Therefore , a higher mean stress should serve to in- crease Kmax near K , and promote faster crack growth rates . On the other hand , if the material experiences ...
... crack - tip profile as was the case in strain crystallizable rubbers . Therefore , a higher mean stress should serve to in- crease Kmax near K , and promote faster crack growth rates . On the other hand , if the material experiences ...
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