0
RESEARCH PAPER

Mixed Mode Loading of an Interface Crack Between Graded Creeping Solids

[+] Author and Article Information
Ali P. Gordon, David L. McDowell

The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405 USA

J. Pressure Vessel Technol 126(4), 478-484 (Dec 01, 2004) (7 pages) doi:10.1115/1.1804200 History: Received October 02, 2003; Revised June 22, 2004; Online December 01, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
An interface crack under (a) pure opening and (b) opening and sliding remote loading. Local crack tip mode mixity resulting from material strength mismatch is independent of remotely applied loading state.
Grahic Jump Location
(left) FE model of the Arcan-type mixed mode fracture specimen with highlighted deformed (×200) crack tip region (right) Accumulated creep strain, εyyc, in homogeneous and bimaterial models after 106 h. For each case a/W=0.166,B/W=0.5,W=50.8 mm,χA≡AWM/ABM=100,χn≡nWM/nBM=1,T=538°C, and P=5.6 kN.
Grahic Jump Location
Time-dependent expansion of the angular distribution of the stress triaxiality, M, at a distance of r=0.08 mm around the crack tip of bimaterial crack tips in elastic-creep materials. Models are exposed to remotely applied (a,b) Mode I (β=0 deg) and (c,d) mixed mode loads (β≠0 deg). For each case χA=100 (b, c, and d). The total exposure time was 106 h.
Grahic Jump Location
Representative microstructure surrounding the weld resulting from back-welding of the base metal (BM)
Grahic Jump Location
Microhardness indentation profiles of welded structures with differing HAZ thicknesses
Grahic Jump Location
Time-dependent expansion of the angular distribution of the stress triaxiality, M, at a distance of r=0.08 mm around the crack tip of bimaterial crack tips in elastic-creep materials. Models are exposed to remotely applied (a,c,d,f) mixed mode loads (β≠0 deg) and (b,e) Mode I (β=0 deg). Heat-affected zone thickness is (a,b,c) tHAZ/W=0.83 and (d,e,f) tHAZ/W=0.50. For each case χA=100 and the total exposure time was 106 h.
Grahic Jump Location
Time-dependent expansion of the angular distribution of the stress triaxiality, M, at a distance of r=0.08 mm around the crack tip of bimaterial crack tips in elastic-creep materials. Models are exposed to remotely applied (a,c,d,f) mixed mode loads (β≠0 deg) and (b,e) Mode I (β=0 deg). Heat-affected zone thickness is (a,b,c) tHAZ/W=0.25 and (d,e,f) tHAZ/W=0.13. For each case χA=100 and the total exposure time was 106 h.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In