Fatigue of Engineering Plastics |
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Page 25
... fact that a damping peak exists at a low temperature means that its characteristic motion ( e.g. , of a short- chain segment ) is relatively free above that temperature . The fact that the modulus decreases as the temperature is raised ...
... fact that a damping peak exists at a low temperature means that its characteristic motion ( e.g. , of a short- chain segment ) is relatively free above that temperature . The fact that the modulus decreases as the temperature is raised ...
Page 101
... fact that the value of crack velocity used to compute the temperature increase was several orders of magnitude higher than the actual fatigue crack growth rate [ 87 ] . In fact , the use of a much smaller crack velocity would have ...
... fact that the value of crack velocity used to compute the temperature increase was several orders of magnitude higher than the actual fatigue crack growth rate [ 87 ] . In fact , the use of a much smaller crack velocity would have ...
Page 203
... fact that the molec- ular weight of the matrix is unknown and unlikely to be the same in all three materials . Nevertheless , as shown in Figs . 5.15 , 5.16 , and 3.10 , clear evidence for toughening in systems in which M was in fact ...
... fact that the molec- ular weight of the matrix is unknown and unlikely to be the same in all three materials . Nevertheless , as shown in Figs . 5.15 , 5.16 , and 3.10 , clear evidence for toughening in systems in which M was in fact ...
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