Deformation and Fracture Mechanics of Engineering MaterialsUpdated to reflect recent developments in our understanding of deformation and fracture processes in structural materials. This completely revised reference includes new sections on isostress analysis, modulus of rupture, creep fracture micromechanicsms, and many more. |
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Page 213
... craze thickness being noted ( Fig . 6.29 ) . The typical craze thickness in glassy polymers is on the order of 5 μm or less , which corresponds in some cases to plastic strains in excess of 50 % .34 Since the lateral surface contraction ...
... craze thickness being noted ( Fig . 6.29 ) . The typical craze thickness in glassy polymers is on the order of 5 μm or less , which corresponds in some cases to plastic strains in excess of 50 % .34 Since the lateral surface contraction ...
Page 216
... craze formation From the above , the stress bias necessary for crazing decreases with increasing dilatation I. It is ... craze is an ideal path for crack propagation . While the presence of the craze is considered undesirable from this ...
... craze formation From the above , the stress bias necessary for crazing decreases with increasing dilatation I. It is ... craze is an ideal path for crack propagation . While the presence of the craze is considered undesirable from this ...
Page 534
... craze - is seen to grow continuously , although it is characterized by a decreasing rate with increasing craze length . When the craze reaches a critical length , the crack advances abruptly across the entire craze and N = O N = 100 J N ...
... craze - is seen to grow continuously , although it is characterized by a decreasing rate with increasing craze length . When the craze reaches a critical length , the crack advances abruptly across the entire craze and N = O N = 100 J N ...
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alloy aluminum alloy American Society applied stress associated ASTM STP atoms behavior brittle Burgers vector Chapter Charpy component crack growth rate crack length crack tip craze crystal crystalline cycles decreasing depends ductility effect elastic embrittlement engineering environment assisted cracking example failure FIGURE flaw fracture mechanics fracture surface fracture toughness given grain boundary hydrogen initial KIEAC lattice load Materials from copyright metallurgical microstructure modulus MPa Vm notch occur orientation parameter plane strain plane stress plastic deformation plastic zone plate polymer properties R. W. Hertzberg region relationship relative Reprinted with permission response result sample screw dislocation Section sensitivity shear stress shown in Fig slip plane slip systems specimen stacking fault energy strain hardening strain rate stress concentration stress intensity factor stress level stress-strain curve striation Table tensile test temperature Testing and Materials texture thickness Trans transition temperature twin values yield strength