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Cracks and Fracture
ASTM Selected Technical Papers
Cracks and Fracture
By
JL Swedlow
JL Swedlow
1
Carnegie-Mellon University
,
Pittsburgh, Pa. 15213
;
symposium co-chairman
.
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ML Williams
ML Williams
2
University of Pittsburgh
,
Pittsburgh, Pa. 15261
:
symposium co-chairman
.
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ISBN-10:
0-8031-0318-2
ISBN:
978-0-8031-0318-4
No. of Pages:
593
DOI:
https://doi.org/10.1520/STP601-EB
Publisher:
ASTM International
Publication date:
1976
eBook Chapter

Theoretical and Experimental Analysis of Crack Extension at Nozzle Junctions

By
MJG Broekhoven
MJG Broekhoven
1
Laboratory for Thermal Power and Nuclear Engineering, Delft University of Technology
,
Delft,
The Netherlands
.
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This Site
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Doi:
https://doi.org/10.1520/STP28663S
Page Count:
24
  • Published:
    1976

Due to the complexity of both geometry and stress distribution, the analysis of cracks in the transition region of nozzle-to-cylinder junctions, where local peak stresses promote crack extension, constitutes one of the most complicated problems in a fracture mechanics based design procedure as adopted in the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (Section III, Appendix G) for nuclear pressure vessels. Results of studies on this subject are scarce. This paper reviews results obtained in the last two years within a Netherlands cooperative research program mainly directed at the nozzle corner crack problem and covers both theoretical and experimental investigations. Significant conclusions from these studies are also presented.

Keywords:
crack propagation, fractures (materials), nozzles, fatigue (materials), pressure vessels, finite elements, stress intensity factors

References

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,
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.
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,
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