Component Reliability under Creep-Fatigue Conditions by Janos Ginsztler, R.P. Skelton

o<, - ~-- '' 0 _,.. :::=c:::==-'----'--400 200 300 soo 600 Temperature in ·c 700 Fig. 05% cyclic proof stresses [31) Fig. 2 Stress and Strain Concentration In rotors, steam chests etc. many stress concentrators such as grooves, changes in section enhance the strain compared with that occurring remotely [32]. a = K2 t ..... 5) where Kt is the elastic concentration factor, KE is the strain concentration factor and Kcr is the stress concentration factor.

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