J-Integral Evaluation for Calculating Structural Intensity and Stress Intensity Factor Using Commercial Finite Element (FE) Solutions

Abstract:

This report is mainly performed to investigate finite element (FE) modeling and post-processing capacities for fracture mechanics analyses characterized by the stress intensity factor (SIF) at successively stationary crack tip positions. As part of a linear elastic fracture mechanics (LEFM) analysis, the determination of stress intensity factor distribution can also be adopted by J-integral approach. The aim of this report is to review three papers related to estimate J-integrals through FE study and represent the theoretical backgrounds. Furthermore, the technical details for both FE modeling and SIF evaluation will be described in this report based on complete understanding of three reference papers. These numerical approaches to deal with SIF evaluation of general cracks can be applied in 2D and 3D FE models.

• Periodical: Advanced Materials Research (Volume 650)
• Pages: 379-384
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.650.379
• Online since: January 2013
• Authors: Jong Wan Hu
• Keywords: Crack Tip, Finite Element Method (FEM), Fracture, Ĵ-Integral, Stress Intensity Factor (SIF)

References

[1] F. Wang et al., Relations between structural intensity and J-integral, Engineering Fracture Mechanics, 72, (2005), pp.1197-1202.

DOI: 10.1016/j.engfracmech.2004.08.003

[2] S. Courtin et al. (2005), Advantages of the J-integral approach for calculating stress intensity factors when using the commercial finite element software ABAQUS, Engineering Fracture Mechanics, 72, (2005) pp.2174-2185.

DOI: 10.1016/j.engfracmech.2005.02.003

[3] X.B. Lin and R.A. Smith, Finite element modeling of fatigue crack growth of surface cracked plate, Engineering Fracture Mechanics, (1999), pp.503-522.

DOI: 10.1016/s0013-7944(99)00040-5

[4] ABAQUS v. 6. 6-1, Theory and user's manual, Hibbit, Karlsson & Sorensen, Inc. Pawtucket. RI. (2006).