A method for the estimation of time-dependent strains and stresses in notches subjected to a cyclic load is discussed in the paper. The proposed solution is an extension of the methodology proposed previously for notches under a steady external load. A new algorithm is proposed to predict the creep response near notches in plane stress components subjected to cyclic loads. Predictions were compared with finite element data, and good agreement was obtained for various geometrical and material configurations.
SeegerT.BesteA.AmstutzH.Elastic-plastic stress-strain behaviour of monotonic and cyclic loaded notched plates. InFracture 1977, Proceedings of the Fourth International Conference on Fracture, Waterloo, Ontario, 1977, 1978, Vol. 2, pp. 943–951 (Pergamon, Oxford).
2.
NeuberH.Theory of stress concentration for shear-strained prismatic bodies with arbitrary nonlinear stress-strain lawTrans. ASME, J. Appl. Mechanics, 1961, 28, 544–551.
3.
TopperT. H.WetzelR. M.MorrowJ. D.Neuber's rule applied to fatigue of notched specimensJ. Mater., 1969, 4 (1), 200–209.
4.
HarkegardG.MannT.Neuber prediction of elastic-plastic strain concentration in notched tensile specimens under large-scale yieldingJ. Strain Analysis, 2003, 38 (1), 79–94.
5.
MolskiK.GlinkaG.A method of elastic-plastic stress and strain calculation at a notch rootMater. Sci. Engng, 1981, 50 (1), 93–100.
6.
KurathP.Extension of the local strain fatigue analysis concepts to incorporate time dependent deformation in Ti-6Al-4V at room temperature. T.&A.M. Report 464, The University of Illinois, Urbana, Illinois, USA, 1984.
7.
ChaudonneretM.Calcul de concentrations de contrainte en elastoviscoplasticité. PhD Thesis Dissertation, Office National d'Etudes et de Recherches Aerospatiales, Chatillon, France, 1978.
8.
ChaudonneretM.CulieJ. P.Adaptation of Neuber's theory to stress concentration in visco-plasticityRech. Aerospatiale (Engl. Edn), 1985, (4), 33–40.
9.
HarkergardG.SorboS.Applicability of Neuber's rule to the analysis of stress and strain concentration under creep conditionsTrans. ASME, J. Engng Mater. Technol., 1998, 120, 224–229.
10.
NuñezJ. E.GlinkaG.Analysis of non-localized creep induced strains and stresses in notchesEngng Fracture Mechanics, 2004, 71, 1791–1803.
11.
MoftakharA.GlinkaG.ScarthD.KawaD.Multiaxial stress-strain creep analysis for notches In Cyclic deformation, fracture, and nondestructive evaluation of advanced materials, ASTM STP 1184 (Eds MitchellM. R.BuckO.), 1994, pp. 230–243 (American Society of Testing and Materials, Philadelphia, Pennsylvania).
12.
HydeT. H.SabesanR.LeenS. B.Approximate prediction methods for notch stresses and strains under elastic-plastic and creep conditionsJ. Strain Analysis, 2004, 39, 515–528.
13.
HydeT. H.SabesanR.LeenS. B.Approximate prediction methods for multiaxial notch stresses and strains under elastic-plastic and creep conditionsJ. Strain Analysis, 2005, 40, 535–548.
14.
GlinkaG.Calculation of inelastic notch-tip strain-stress histories under cyclic loadingEngng Fracture Mechanics, 1985, 22 (5), 839–854.
