Fatigue of Engineering Plastics |
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Page 13
... orientation . Both crazes and shear bands play important roles in fracture . For example , cracks often pass through Unoriented chains Oriented fibrils ( b ) Unoriented chains Aligned fibrils = ( a ) Fig . 1.4 Schema showing the two ...
... orientation . Both crazes and shear bands play important roles in fracture . For example , cracks often pass through Unoriented chains Oriented fibrils ( b ) Unoriented chains Aligned fibrils = ( a ) Fig . 1.4 Schema showing the two ...
Page 29
... oriented , and strong units . If after yielding , the stress drops as a function of elongation , the rheological ... orientation that would increase strength . Con- versely , an increase in molecular weight should permit the ...
... oriented , and strong units . If after yielding , the stress drops as a function of elongation , the rheological ... orientation that would increase strength . Con- versely , an increase in molecular weight should permit the ...
Page 218
... orientation in the flow direction may be expected with this type . A second common type is based on the impregnation of a ... oriented . Since in practice l / d ratios are usually > 150 , such fibers can resemble continuous ones in their ...
... orientation in the flow direction may be expected with this type . A second common type is based on the impregnation of a ... oriented . Since in practice l / d ratios are usually > 150 , such fibers can resemble continuous ones in their ...
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