Advances in Fracture Research: Fracture 84, Proceedings of the 6th International Conference on Fracture (ICF6), New Delhi, India, 4-10 December 1984, Volume 5S. R. Valluri |
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Page 3273
... creep tests of Ti - 6211 alloys at room temperature with punching stresses of 1500-5661 MPa are reported . For stress under 3000 MPa the creep behavior is essentially exhausted type and obeys the logarithmic law . exponent value of time ...
... creep tests of Ti - 6211 alloys at room temperature with punching stresses of 1500-5661 MPa are reported . For stress under 3000 MPa the creep behavior is essentially exhausted type and obeys the logarithmic law . exponent value of time ...
Page 3275
... creep tests had been conducted with creep stress in the range from 558 MPa to 724 MPa ( the 0.2 % offset yield strength at room temperature is 703 MPa ) . The results show that the creep behavior of this alloy obeys the logarithmic law ...
... creep tests had been conducted with creep stress in the range from 558 MPa to 724 MPa ( the 0.2 % offset yield strength at room temperature is 703 MPa ) . The results show that the creep behavior of this alloy obeys the logarithmic law ...
Page 3276
... creep rate is expressed as : ¿ = ¿ exp ( -AF / kT ) ( 6 ) where AF is the standard free energy of activation , & is the maximum attainable creep rate at AF - 0 , k is the Boltzmann constant and T is absolute temperature . The ...
... creep rate is expressed as : ¿ = ¿ exp ( -AF / kT ) ( 6 ) where AF is the standard free energy of activation , & is the maximum attainable creep rate at AF - 0 , k is the Boltzmann constant and T is absolute temperature . The ...
Contents
ASSESSMENT OF DYNAMIC FRACTURE PROPAGATION RESISTANCE | 3089 |
ON THE SIGNIFICANCE OF THE THRESHOLD FOR FATIGUE CRACK | 3097 |
CRITERIA FOR DYNAMIC CRACK CURVING AND BRANCHING | 3099 |
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Common terms and phrases
AFR VOL alloy amplitude analysis applied ASTM austenitic behaviour calculated compact tension component constant correlation crack extension crack growth crack growth rate crack initiation crack length crack propagation crack tip creep criterion curve cyclic damage tolerance defects deformation determined displacement ductile dynamic fracture effect elastic energy equation evaluation experimental failure fatigue crack growth Fatigue CTOD test finite element finite element analysis flaw fracture mechanics fracture surface fracture toughness frequency function grain gross section yielding impact inspection J-integral KEYWORDS linear linear elastic load martensitic material maximum measured metal method mixed mode notch number of cycles obtained parameters photoelastic plane plane strain plastic zone plate precracked predicted range ratio ringdown shear band shown in Fig shows steel strain rate stress amplitude stress field stress intensity factor stretch zone structure Table technique temperature tensile thickness values velocity weld joint wind turbine yield strength