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(01 May 2006) FITNET MK7(c) Transverse Surface <strong>Residual</strong> <strong>Stress</strong>,TσRDistributionSide 1 : W = W 1(b) Longitudinal Through-Thickness <strong>Residual</strong> <strong>Stress</strong>,(d) Transverse Through-Thickness <strong>Residual</strong> <strong>Stress</strong>TσRLσRandDistributionσ Lor σ TR RzDistribution Equations (Longitudinal and Transverse <strong>Stress</strong>es)LR+yσ / σ (z/t) =LR+yTR+yσ / σ (z/t) = T/ σ +LR+yσ / σ (z/t) = T/ σ +σ / σ (z/t) = 1 for z < z rσ (z/t) = (z 0+z r -z)/ z 0 for z r < z < (z r +z 0 )RRyσ (z/t) = 0 for z > (z r+z 0 )y+σ y = greater of (parent, weld or repair weld yield stress)z r = the depth of the repair, mmz 0 = r 0 as defined by Appendix IV.4.1 equation (a), substituting the yield stress, σ y * (equal to thelower of the parent or weld metal typical yield strength) for σ yp .Figure C.7 - (cont)© FITNET 2006 – All rights reserved <strong>Annex</strong> C.29
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