Fracture mechanics methodologies for flaw stability analysis of a storage tank were compared in terms of the maximum stable through-wall flaw sizes or “instability lengths.” The comparison was made at a full range of stress levels at a specific set of mechanical properties of A285 carbon steel and with a specific tank configuration. The two general methodologies, the J-integral-tearing modulus (J-T) and the failure assessment diagram (FAD), and several specific estimation schemes were evaluated. A finite element analysis of a flawed tank was also performed for validating the J estimation scheme with a curvature correction and for constructing the finite element-based FAD. The calculated instability crack lengths show that the J-T methodology based on a center-cracked panel solution with a curvature correction, and the material-specific FAD, most closely approximate the result calculated with finite element analysis for the stresses at the highest fill levels in the storage tanks (less than 124 MPa or 18 ksi). The results from the other FAD methods show instability lengths less than the J-T results over this range.
Skip Nav Destination
ASME/JSME 2004 Pressure Vessels and Piping Conference
July 25–29, 2004
San Diego, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4669-5
PROCEEDINGS PAPER
Comparison of Fracture Methodologies for Flaw Stability Analysis of Storage Tanks
P.-S. Lam,
P.-S. Lam
Westinghouse Savannah River Company, Aiken, SC
Search for other works by this author on:
R. L. Sindelar
R. L. Sindelar
Westinghouse Savannah River Company, Aiken, SC
Search for other works by this author on:
P.-S. Lam
Westinghouse Savannah River Company, Aiken, SC
R. L. Sindelar
Westinghouse Savannah River Company, Aiken, SC
Paper No:
PVP2004-2304, pp. 91-103; 13 pages
Published Online:
August 12, 2008
Citation
Lam, P, & Sindelar, RL. "Comparison of Fracture Methodologies for Flaw Stability Analysis of Storage Tanks." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. Fracture Methodologies and Manufacturing Processes. San Diego, California, USA. July 25–29, 2004. pp. 91-103. ASME. https://doi.org/10.1115/PVP2004-2304
Download citation file:
6
Views
Related Proceedings Papers
Related Articles
Flaw Stability in Mild Steel Tanks in the Upper-Shelf Ductile Range—Part II: J -Integral-Based Fracture Analysis
J. Pressure Vessel Technol (May,2000)
Flaw Stability in Mild Steel Tanks in the Upper-Shelf Ductile Range—Part I: Mechanical Properties
J. Pressure Vessel Technol (May,2000)
Determination of Constraint-Modified J - R Curves for Carbon Steel Storage Tanks
J. Pressure Vessel Technol (May,2003)
Related Chapters
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Applications of Elastic-Plastic Fracture Mechanics in Section XI, ASME Code Evaluations
Online Companion Guide to the ASME Boiler & Pressure Vessel Codes