On Higher-Order Crack-Tip Fields in Creeping Solids

[+] Author and Article Information
B. N. Nguyen, P. R. Onck, E. van der Giessen

Delft University of Technology, Koiter Institute Delft, Mekelweg 2, 2628 CD Delft, The Netherlands

J. Appl. Mech 67(2), 372-382 (Oct 05, 1999) (11 pages) doi:10.1115/1.1304823 History: Received November 17, 1998; Revised October 05, 1999
Copyright © 2000 by ASME
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Geometries of normalized test specimens: (a) SENT, (b) SENB, and (c) CCT, including normalized loading
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Contours of Mises stress according to finite element analysis in (a) SENT, (b) SENB, and (c) CCT specimens (a/W=0.2)
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Normalized opening stress σ⁁θθ(r̄/L̄,θ=0) in (a) SENT and (b) SENB specimens (a/W=0.2)
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Normalized radial stress σ⁁rr(r̄/L̄,θ=0) in (a) SENT and (b) SENB specimens (a/W=0.2)
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Angular distributions of the effective stresses at r̄=0.0196 in (a) SENT and (b) SENB specimens (a/W=0.2)
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Evolution of (C̄*)p+1/n+1 with a/W in SENT, SENB, and CCT specimens for n=5(p=0.05456)
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Values of A2(W) for (a) SENB, SENT, and CCT specimens as obtained from our creep calculations and converted using (32), (b) SENB and CCT specimens compared with the fully plastic results of 21




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