Fatigue of Engineering Plastics |
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Page 21
... static or fatigue loading . Of course , an effect of fre- quency is to be expected , for the longer the time of load application , the greater the propensity for crazing [ 94 ] ; temperatures must also be important in determining the ...
... static or fatigue loading . Of course , an effect of fre- quency is to be expected , for the longer the time of load application , the greater the propensity for crazing [ 94 ] ; temperatures must also be important in determining the ...
Page 195
... static tests . As shown in Fig . 4.28 , clear evidence exists for the occurrence of crazing during fatigue crack propagation in HIPS . On the fracture surfaces , which are at right angles to the loading direction ( i.e. , in the x ...
... static tests . As shown in Fig . 4.28 , clear evidence exists for the occurrence of crazing during fatigue crack propagation in HIPS . On the fracture surfaces , which are at right angles to the loading direction ( i.e. , in the x ...
Page 246
... Static tensile strength 400 Static compressive strength 10 103 Cycles 10 Fig . 5.47 Axial load fatigue results for unidirectional , surface - treated , high - modulus fiber composites prepared from prepreg tows with a typical epoxy ...
... Static tensile strength 400 Static compressive strength 10 103 Cycles 10 Fig . 5.47 Axial load fatigue results for unidirectional , surface - treated , high - modulus fiber composites prepared from prepreg tows with a typical epoxy ...
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Common terms and phrases
adhesive 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 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 semicrystalline 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