## Fatigue of Engineering Plastics |

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Page 11

It should be noted that bond breakage is not confined strictly to the

of the crack . Up to an order - of - magnitude more covalent bonds are broken

than are in the formal crack

It should be noted that bond breakage is not confined strictly to the

**plane**aheadof the crack . Up to an order - of - magnitude more covalent bonds are broken

than are in the formal crack

**plane**; some of these bonds are in**planes**that are ...Page 148

That is , the

and component thickness . It has been shown that the shear lips reflect crack

propagation under conditions of

...

That is , the

**plane**of the crack assumes a + 45° angle relative to the stress axisand component thickness . It has been shown that the shear lips reflect crack

propagation under conditions of

**plane**stress and the flat ( i . e . , 90° orientation )...

Page 237

TABLE 5 . 6 Fatigue and Stress - Strain Characteristics of Short - Fiber -

Reinforced Nylon 669 Tensile strength ( MPa ) e Code Type ( vol % ) Geometry (

water % ) E ( GPa ) Ep bu s pí a ( cm / min ) . ( 1 ) With random - in -

A 8 .

TABLE 5 . 6 Fatigue and Stress - Strain Characteristics of Short - Fiber -

Reinforced Nylon 669 Tensile strength ( MPa ) e Code Type ( vol % ) Geometry (

water % ) E ( GPa ) Ep bu s pí a ( cm / min ) . ( 1 ) With random - in -

**plane**fibers.A 8 .

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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 tensile thermal tion toughness values volume yield York zone