Fatigue of Engineering Plastics |
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Page 38
... Figure 2.3 provides two examples of the usual manner by which fatigue data are pre- sented [ la ] . These stress - log cyclic life plots ( often referred to as S - N dia- STRESS , MPa 10 20 40 30 T 50 Urea 888 38 2. Cyclic Stress and ...
... Figure 2.3 provides two examples of the usual manner by which fatigue data are pre- sented [ la ] . These stress - log cyclic life plots ( often referred to as S - N dia- STRESS , MPa 10 20 40 30 T 50 Urea 888 38 2. Cyclic Stress and ...
Page 134
... Figure 3.39 shows that when Qa increased , the apparent fracture toughness decreased . A reasonable explana- tion for this relationship may be proposed . The parameter Q , should in some manner reflect the degree of ordering in PC . If ...
... Figure 3.39 shows that when Qa increased , the apparent fracture toughness decreased . A reasonable explana- tion for this relationship may be proposed . The parameter Q , should in some manner reflect the degree of ordering in PC . If ...
Page 243
... Figure 5.43 ( curves B and C , and additional figures given below ) also shows that when the load is not tensile , uniaxial , and aligned with the fiber axis , fatigue failure occurs at lower stresses ; thus flexural , compressive , and ...
... Figure 5.43 ( curves B and C , and additional figures given below ) also shows that when the load is not tensile , uniaxial , and aligned with the fiber axis , fatigue failure occurs at lower stresses ; thus flexural , compressive , and ...
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