Abstract
A procedure is proposed to take into account the presence of residual stresses when creep crack growth takes place in primary creep. Two approaches are used; a local analysis where the combined mechanical and residual stresses are examined using near crack tip stress fields for transient conditions, and a second approach where the global relaxation of the residual stresses is used to estimate conditions. The creep fracture mechanics parameter C* is estimated in the two approaches for strain hardening and time hardening primary creep, and comparisons of the estimates are given for a stationary and a growing crack. It is found that the greatest estimate for C* is obtained for strain hardening primary creep. The creep crack growth rate is initially very fast but decelerates as the influence of the residual stress and primary creep diminishes.
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References
Ainsworth, R.A. et al. Assessment procedure for defects in plant operating in the creep range. CEGB report No. TPRP/B/0784/R86.
Smith, D.J. and Webster, G.A. Case Studies in the prediction of creep failure in cracked components operating at elevated temperatures. In Proc. 3rd Int.Conf. on Creep and Fracture. The Institute of Metals, 1987, pp 549–562.
Smith, D.J. Predicting creep failure in high temperature cracked welded components containing residual stresses. Institution of Mechanical Engineers Seminar, Nov. 1987, pp 41–50.
Penny, R.K. and Marriott, D.L. Design for Creep. McGraw Hill, London, 1971.
Riedel, H. Fracture at High Temperatures. Springer-Verlag, 1987.
Smith, D.J. Crack Growth in Primary Creep. Department of Mechanical Engineering Report, University of Bristol, October 1988.
Turner, C.E. Further developments of a J-based design curve and its relationship to other procedures. In Elastic-Plastic Fracture. ASTM STP 803, 1983. II80-II102.
Nikbin, K.M., Smith, D.J. and Webster, G.A. Prediction of creep crack growth from uniaxial creep data. Proc. R.Soc. London. A396, 1984, pp 183–197
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© 1989 Elsevier Science Publishers Ltd
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Smith, D.J. (1989). On The Growth of Cracks By Creep in The Presence of Residual Stresses. In: Cocks, A.C.F., Ponter, A.R.S. (eds) Mechanics of Creep Brittle Materials 1. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1117-8_6
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DOI: https://doi.org/10.1007/978-94-009-1117-8_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-6994-6
Online ISBN: 978-94-009-1117-8
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