Computational Fracture Mechanics
نویسنده
چکیده
The classical, overall objective of fracture mechanics is the determination of the rate of change of the shape of an existing crack. Will it propagate under given loading and environmental conditions, and, if it does propagate, at what rate and into what configuration will it do so? The corresponding computational requirement has been to obtain the fields – displacement, strain, stress, and energy – from which the driving force for crack propagation might be extracted. For example, under the rules of linear elastic fracture mechanics (LEFM), one might want to determine conditions for unstable growth of a Mode-I crack idealized as two-dimensional and contained in a structure subjected to monotonically increasing load. The traditional role of computational fracture mechanics (CFM) would be to find
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