Abstract
An investigation is performed as to the extent J and Q calculated for successively stationary crack positions can be used to characterize the state at a growing crack in a corresponding geometry. FE models of single-edge notch bend and double-edge cracked panel specimens are used to cover a variation of constraint levels. The stress and strain fields are compared between different specimens at equal J-values and Q-values, respectively. A remeshing technique is used to enhance the efficiency of the analysis. The commercial FE-code ABAQUS is used and substantial crack growth is achieved with less computer time and better accuracy than in conventional FE analysis.
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Trädegård, A., Nilsson, F. & Östlund, S. J-Q characterization of propagating cracks by FEM-remeshing. Computational Mechanics 20, 181–185 (1997). https://doi.org/10.1007/s004660050237
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DOI: https://doi.org/10.1007/s004660050237