Fatigue of Engineering Plastics |
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Page 115
... damage zone [ 38 , 45 , 108 , 118-120 ] . The Dugdale model supposes that the plastic strip is in the plane of the ... damage has occurred , K the stress intensity factor , and σ ,, the material yield strength . Note that the form of Eq ...
... damage zone [ 38 , 45 , 108 , 118-120 ] . The Dugdale model supposes that the plastic strip is in the plane of the ... damage has occurred , K the stress intensity factor , and σ ,, the material yield strength . Note that the form of Eq ...
Page 253
... Damage Propagation Rates . Several investigators have studied the propagation of damage from notches and holes in laminates ; several examples may be noted . Kam [ 175 ] has studied the stresses required to initiate damage growth from ...
... Damage Propagation Rates . Several investigators have studied the propagation of damage from notches and holes in laminates ; several examples may be noted . Kam [ 175 ] has studied the stresses required to initiate damage growth from ...
Page 254
... damage along the -45 ° plies , and the damage was reflected back along the balancing plies . The conclusion that notch sensitivity in fibrous composites was low agrees with an early report by Davis et al . [ 176 ] and , more recently ...
... damage along the -45 ° plies , and the damage was reflected back along the balancing plies . The conclusion that notch sensitivity in fibrous composites was low agrees with an early report by Davis et al . [ 176 ] and , more recently ...
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