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 37
... fiber - matrix interface in the vicinity of the fiber ends . For the case of a circular fiber with radius r , these shear stresses produce an axial stress along the fiber given by ( 1-39 ) σπι = Tr22πrz where σ = axial stress along the ...
... fiber - matrix interface in the vicinity of the fiber ends . For the case of a circular fiber with radius r , these shear stresses produce an axial stress along the fiber given by ( 1-39 ) σπι = Tr22πrz where σ = axial stress along the ...
Page 39
... fibers in a particular composite do not possess the same strength level ; rather , the strength of a given fiber falls within a statistical distribution of fiber strengths . As a result , the weaker fibers fracture prematurely , and the ...
... fibers in a particular composite do not possess the same strength level ; rather , the strength of a given fiber falls within a statistical distribution of fiber strengths . As a result , the weaker fibers fracture prematurely , and the ...
Page 451
... fiber - matrix interfacial separation ( recall the dis- cussion associated with Fig . 10.3 ) . However , the major toughening contribution is believed to result from fiber pullout . If the fiber length I is less than critical le , then the ...
... fiber - matrix interfacial separation ( recall the dis- cussion associated with Fig . 10.3 ) . However , the major toughening contribution is believed to result from fiber pullout . If the fiber length I is less than critical le , then the ...
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addition alloy aluminum alloy applied stress associated ASTM atoms behavior brittle ceramics Chapter Charpy component composite crack extension crack growth crack length crack tip craze creep rate crystal curve cyclic decrease depends determined dislocation ductility elastic embrittlement engineering example factor failure fiber FIGURE flaw fracture mechanics fracture surface fracture toughness given grain boundaries hardening hydrogen increasing initial KIEAC lattice load maraging steels martensite material material's matrix Metals Park microstructure microvoid modulus notch Note occur oriented parameter particles phase plane plane-strain plastic deformation plastic zone plate polymer polymeric region relative Reprinted with permission result rupture sample screw dislocation Section shear stress shown in Fig solid solution specimen stacking fault energy steel alloys strain rate stress concentration stress field stress intensity stress level stress-strain stress-strain curve superalloys tensile stress test temperature thermal thickness toughening Trans transition temperature twinning values yield strength