Fatigue of Engineering Plastics |
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Page 78
... plastic zone see Section 3.8.1 . Whether plane strain or plane stress conditions will apply in a given situation depends upon the size of the plastic zone relative to the component thickness and actual crack length . For example , plane ...
... plastic zone see Section 3.8.1 . Whether plane strain or plane stress conditions will apply in a given situation depends upon the size of the plastic zone relative to the component thickness and actual crack length . For example , plane ...
Page 115
... plastic strip model to better describe the crack tip damage zone [ 38 , 45 , 108 , 118-120 ] . The Dugdale model supposes that the plastic strip is in the plane of the crack and bears a uniform stress equal to the yield strength of the ...
... plastic strip model to better describe the crack tip damage zone [ 38 , 45 , 108 , 118-120 ] . The Dugdale model supposes that the plastic strip is in the plane of the crack and bears a uniform stress equal to the yield strength of the ...
Page 168
... plastic zone model . Furthermore , if we assume that crack tip yielding occurs by crazing ( at least in the ... plastic zone dimension , Kmax the maximum stress intensity factor , and o Oys the material yield strength . The computation ...
... plastic zone model . Furthermore , if we assume that crack tip yielding occurs by crazing ( at least in the ... plastic zone dimension , Kmax the maximum stress intensity factor , and o Oys the material yield strength . The computation ...
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