Fatigue of Engineering Plastics |
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Page 17
... response ( region II ) becomes nonlinear ; energy is still recoverable on release of the stress , but slowly ( anelastic response ) . Eventually , yield- ing occurs ( region III ) , accompanied by the onset of components of irre ...
... response ( region II ) becomes nonlinear ; energy is still recoverable on release of the stress , but slowly ( anelastic response ) . Eventually , yield- ing occurs ( region III ) , accompanied by the onset of components of irre ...
Page 21
... response [ 101 ] . In general , crazed material may be expected to be weaker than uncrazed material , though crazes ... response at the crack tip , whether the response be homogeneous ( e.g. , shear yielding ) or hetero- geneous ( e.g. ...
... response [ 101 ] . In general , crazed material may be expected to be weaker than uncrazed material , though crazes ... response at the crack tip , whether the response be homogeneous ( e.g. , shear yielding ) or hetero- geneous ( e.g. ...
Page 88
... response . Since the materials shown in Table 3.4 differ with regard to their relative viscoelastic response , different strain rate effects may be expected . However , as pointed out earlier , while the waveform experi- ments were ...
... response . Since the materials shown in Table 3.4 differ with regard to their relative viscoelastic response , different strain rate effects may be expected . However , as pointed out earlier , while the waveform experi- ments were ...
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