The interaction between multiple surface cracks is an important consideration in the cracking behavior due to thermal fatigue and stress corrosion cracking. However, it is difficult to evaluate the intensity of the interaction quantitatively because there are many factors, such as the relative position, size, and geometry of the cracks. Furthermore, the influence of the interaction differs with the crack tip position along the front. In this study, to investigate the intensity of interaction, the stress intensity factor (SIF) of interacting semielliptical surface cracks was evaluated by the finite element method and finite element alternating method. These methods enable us to evaluate the SIF of interacting cracks for various conditions. The analysis results reveal that the change in the averaged SIF along the crack front caused by coalescence of two cracks can be estimated from the change in the area size. The maximum interaction can be estimated by a simple addition of the area size of two cracks regardless of the loading condition and relative crack size. To exclude the conservativeness caused by the current combination rule, new criteria are shown.
Skip Nav Destination
Article navigation
February 2008
Research Papers
Influence of the Interaction on Stress Intensity Factor of Semielliptical Surface Cracks
Masayuki Kamaya
Masayuki Kamaya
Institute of Nuclear Safety System, Inc.
, 64 Sata, Mihama-cho, Mikata-gun, Fukui 919-1205, Japan
Search for other works by this author on:
Masayuki Kamaya
Institute of Nuclear Safety System, Inc.
, 64 Sata, Mihama-cho, Mikata-gun, Fukui 919-1205, JapanJ. Pressure Vessel Technol. Feb 2008, 130(1): 011406 (7 pages)
Published Online: January 30, 2008
Article history
Received:
January 4, 2006
Revised:
October 11, 2006
Published:
January 30, 2008
Citation
Kamaya, M. (January 30, 2008). "Influence of the Interaction on Stress Intensity Factor of Semielliptical Surface Cracks." ASME. J. Pressure Vessel Technol. February 2008; 130(1): 011406. https://doi.org/10.1115/1.2826424
Download citation file:
Get Email Alerts
The Behavior of Elbow Elements at Pure Bending Applications Compared to Beam and Shell Element Models
J. Pressure Vessel Technol (February 2025)
Related Articles
Fatigue Crack Growth Life Prediction for Surface Crack Located in Stress Concentration Part Based on the Three-Dimensional Finite Element Method
J. Eng. Gas Turbines Power (January,2004)
A Combination Rule for Circumferential Surface Cracks on Pipe Under Tension Based on Limit Load Analysis
J. Pressure Vessel Technol (April,2011)
Analysis of Surface Crack in Cylinder by Finite Element Alternating Method
J. Pressure Vessel Technol (May,2005)
A Criterion for Combination Rule in Flaw Assessment of Parallel Surface Cracks
J. Pressure Vessel Technol (December,2011)
Related Chapters
Three-Dimensional Cracked Configurations
The Stress Analysis of Cracks Handbook, Third Edition
Transition of Part-Through Cracks at Holes into Through-the-Thickness Flaws
Fracture Mechanics: Fifteenth Symposium
Subsection NB—Class 1 Components
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 1, Third Edition