Calculation of fracture mechanics parameters for an arbitrary three‐dimensional crack, by the ‘equivalent domain integral’ method
- 1 September 1987
- journal article
- research article
- Published by Wiley in International Journal for Numerical Methods in Engineering
- Vol. 24 (9) , 1801-1821
- https://doi.org/10.1002/nme.1620240914
Abstract
In this paper, an equivalent domain integral (EDI) method and the attendant numerical algorithms are presented for the computation of a near‐crack‐tip field parameter, the vector Jϵ‐integral, and its variation along the front of an arbitrary three‐dimensional crack in a structural component. Account is taken of possible non‐elastic strains present in the structure; in this case the near‐tip Jϵ‐values may be significantly different from the far‐field values Jf, especially under non‐proportional loading.Keywords
This publication has 16 references indexed in Scilit:
- A finite‐element–alternating technique for evaluating mixed mode stress intensity factors for part‐elliptical surface flawsInternational Journal for Numerical Methods in Engineering, 1987
- Energy release rate calculations by the finite element methodEngineering Fracture Mechanics, 1985
- A comparison of methods for calculating energy release ratesEngineering Fracture Mechanics, 1985
- Energy flux into process region in elastic-plastic fracture problemsEngineering Fracture Mechanics, 1984
- On the computation of mixed-mode K-factors for a dynamically propagating crack, using path-independent integrals J'kEngineering Fracture Mechanics, 1984
- Three-dimensional J-integral calculations of part-through surface crack problemsComputers & Structures, 1983
- On the path independent integral-Engineering Fracture Mechanics, 1980
- The virtual crack extension method for nonlinear material behaviorComputer Methods in Applied Mechanics and Engineering, 1977
- On the method of virtual crack extensionsInternational Journal for Numerical Methods in Engineering, 1975
- A Path Independent Integral and the Approximate Analysis of Strain Concentration by Notches and CracksJournal of Applied Mechanics, 1968