Fatigue of Engineering Plastics |
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Page 35
A focal point to these studies has been the realization that fatigue damage will
occur only when cyclic plastic * strains are generated . That fatigue fractures do
occur when nominal applied stresses are below the material yield strength
reflects ...
A focal point to these studies has been the realization that fatigue damage will
occur only when cyclic plastic * strains are generated . That fatigue fractures do
occur when nominal applied stresses are below the material yield strength
reflects ...
Page 77
However , this circumstance is precluded by the onset of plastic deformation at
the crack tip . The extent of the yielded zone around the crack tip in plane stress
has been estimated [ 11 ] from Eq . ( 3 . 4 ) by setting the local stress equal to the
...
However , this circumstance is precluded by the onset of plastic deformation at
the crack tip . The extent of the yielded zone around the crack tip in plane stress
has been estimated [ 11 ] from Eq . ( 3 . 4 ) by setting the local stress equal to the
...
Page 115
in polymeric solids very often assumes a more lens - shaped configuration ,
especially in connection with the formation of crazes , a number of investigators
have adopted the Dugdale plastic strip model to better describe the crack tip
damage ...
in polymeric solids very often assumes a more lens - shaped configuration ,
especially in connection with the formation of crazes , a number of investigators
have adopted the Dugdale plastic strip model to better describe the crack tip
damage ...
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Contents
Fatigue Crack Propagation | 74 |
Fatigue Fracture Micromechanisms in Engineering Plastics | 146 |
Composite Systems | 184 |
Copyright | |
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Common terms and phrases
addition applied associated bands behavior changes component composites constant corresponding crack growth rate crack tip craze curve cycles cyclic da/dN damage decrease deformation depend discontinuous discussed effect energy engineering examined example exist expected experiments fact factor failure fatigue crack fatigue crack propagation FCP rates fibers fracture fracture surface frequency function given greater higher important increase initial involving J. A. Manson limits loading lower material matrix mean mechanical metals modulus molecular notched noted nylon 66 observed occur plastic PMMA polymeric polymers polystyrene possible properties R. W. Hertzberg range region relationship relative reported resistance respect response rise rubber samples sensitivity shear showed significant similar Skibo solids specimen static strain strength stress stress intensity striations structure studies temperature thermal tion toughness values volume yield York zone