Fatigue of Engineering Plastics |
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Page 17
... energy is stored in a quite reversible manner ( Hookean elasticity , linear viscoelasticity ) . As the stress rises further , the response ( region II ) becomes nonlinear ; energy is still recoverable on release of the stress , but ...
... energy is stored in a quite reversible manner ( Hookean elasticity , linear viscoelasticity ) . As the stress rises further , the response ( region II ) becomes nonlinear ; energy is still recoverable on release of the stress , but ...
Page 76
... energy rate model involving the incremental advance of a crack △ a driven by the strain energy release rate du / da , and an energy sink that would absorb the input energy y ( the latter representing the surface energy of the material ) ...
... energy rate model involving the incremental advance of a crack △ a driven by the strain energy release rate du / da , and an energy sink that would absorb the input energy y ( the latter representing the surface energy of the material ) ...
Page 111
... energy parameter T could be given by T = To { C / [ C - ƒ ( B ) ] } , - ( 3.18 ) where T is the total energy expended by the solid to cause unit area of crack growth , To the energy expended in a perfectly elastic solid , C a function ...
... energy parameter T could be given by T = To { C / [ C - ƒ ( B ) ] } , - ( 3.18 ) where T is the total energy expended by the solid to cause unit area of crack growth , To the energy expended in a perfectly elastic solid , C a function ...
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