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 279
Richard W. Hertzberg. 8.6 FRACTURE MODE TRANSITION : PLANE STRESS VERSUS PLANE STRAIN As discussed in Section 8.5 , the plastic zone size depends on the state of stress acting at the crack tip . When the sample is thick in a direction ...
Richard W. Hertzberg. 8.6 FRACTURE MODE TRANSITION : PLANE STRESS VERSUS PLANE STRAIN As discussed in Section 8.5 , the plastic zone size depends on the state of stress acting at the crack tip . When the sample is thick in a direction ...
Page 280
... plane stress plastic zone size relationship as given by Eq . 8-33 . Experience has shown that when r , / t > 1 , plane stress conditions prevail and toughness is high . At the other extreme , plane strain ... plane stress or plane strain ...
... plane stress plastic zone size relationship as given by Eq . 8-33 . Experience has shown that when r , / t > 1 , plane stress conditions prevail and toughness is high . At the other extreme , plane strain ... plane stress or plane strain ...
Page 281
... plane stress , a Mohr circle construction will show that the planes of maximum shear will lie along ± 45 - degree lines in the Y - Z plane . ) In plane strain , where ov ( o , + o , ) and r , « t , the plane of maximum shear is found in ...
... plane stress , a Mohr circle construction will show that the planes of maximum shear will lie along ± 45 - degree lines in the Y - Z plane . ) In plane strain , where ov ( o , + o , ) and r , « t , the plane of maximum shear is found in ...
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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