Fatigue of Engineering Plastics |
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Page 91
... PMMA was directly related to both the a ( glass ) - and ẞ ( secondary ) -transitions . Johnson and Radon [ 6 , 7 ] , have also shown that the time - to - failure in static tests with PMMA and PVC ( at the ductile - brittle transition ...
... PMMA was directly related to both the a ( glass ) - and ẞ ( secondary ) -transitions . Johnson and Radon [ 6 , 7 ] , have also shown that the time - to - failure in static tests with PMMA and PVC ( at the ductile - brittle transition ...
Page 160
... PMMA , PC , and polyethylene ( PE ) in terms of the crack - tip blunting model proposed by Laird and Smith [ 30 ] , wherein the crack tip is considered to blunt and re- sharpen during loading and unloading portions of the stress cycle ...
... PMMA , PC , and polyethylene ( PE ) in terms of the crack - tip blunting model proposed by Laird and Smith [ 30 ] , wherein the crack tip is considered to blunt and re- sharpen during loading and unloading portions of the stress cycle ...
Page 174
... PMMA [ 51 ] . This is consistent with previous studies by others [ 52 , 53 ] . In related fashion , the model accounts for DGB formation only when M is below some critical level ( roughly 2-4 × 105 ) [ 6 ] . When M is high , fibrillar ...
... PMMA [ 51 ] . This is consistent with previous studies by others [ 52 , 53 ] . In related fashion , the model accounts for DGB formation only when M is below some critical level ( roughly 2-4 × 105 ) [ 6 ] . When M is high , fibrillar ...
Contents
Fatigue Crack Propagation | 74 |
Fatigue Fracture Micromechanisms in Engineering Plastics | 146 |
Composite Systems | 184 |
Copyright | |
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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 flaw 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