Life Assessment of Dynamically Loaded Materials and Structures, Volume 1L. O. Faria |
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Page 136
... unnotched specimens a same local strain histor was applied at the notch root of the notched specimens and at the surface of the unnotched specimens . This is in general accordance with the compania specimen concept which was originally ...
... unnotched specimens a same local strain histor was applied at the notch root of the notched specimens and at the surface of the unnotched specimens . This is in general accordance with the compania specimen concept which was originally ...
Page 137
... unnotched specimen be- haviour are observed . The unnotched specimens show the shortest fatigue life . This is mainly due to the following reasons : At the notched specimens the stresses and strains decrease with an increasing distance ...
... unnotched specimen be- haviour are observed . The unnotched specimens show the shortest fatigue life . This is mainly due to the following reasons : At the notched specimens the stresses and strains decrease with an increasing distance ...
Page 328
... unnotched specimens . " fatigue limits ( at N , = 0 , and OF = S σ = B m relations , assumed linear both for OD and o dn = OD ' are here the = 107 ) for unnotched and notched specimens when is the tensile strength of standard material ...
... unnotched specimens . " fatigue limits ( at N , = 0 , and OF = S σ = B m relations , assumed linear both for OD and o dn = OD ' are here the = 107 ) for unnotched and notched specimens when is the tensile strength of standard material ...
Contents
Short fatigue cracks and crack closure | 3 |
Analysis and prediction of fatigue crack propagation | 49 |
The initiation and propagation of small defects in fretting | 89 |
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alloys analysis applied ASTM behaviour bending calculated compressive mean stress controlled forged crack depth crack growth rate crack initiation crack length crack propagation crack tip criteria criterion cyclic plastic zone da/dN decrease defects deformation displacement ductile effect elastic energy equation estimated experimental results failure fatigue crack fatigue crack growth fatigue limit fatigue strength fatigue tests ferrite Figure fillet welded fracture mechanics fracture surface fracture toughness function geometry grain groove depth inclusions increase influence J-integral Kmax loading material maximum measured microstructure notch factor notched specimens number of cycles obtained OVERSTRAINED oxygen parameters pearlite plane strain plastic strain plotted pmax predicted residual stresses S-N curve shear short cracks shot peening shows solutions steel strain rate stress amplitude stress intensity factor stress range striation density structural Table temperature tion unnotched values versus weld metal weld toe welded joints yield strength yield stress Δε