Abstract
The boundary element method and interactive computer graphics together make possible the analysis of general, three-dimensional linear elastic crack propagation. A program called the Fracture Editor has been developed for this purpose. The pre-processing, post-processing and fracture prediction capabilities of this program make up a general purpose fracture propagation processor. The function of the Fracture Editor is described in detail. These functions include file management, fracture propagation prediction, automatic crack front updating, interactive remeshing, attribute editing, mesh inspection, and post-processing of results. An example problem, fatigue crack propagation in a crane runway girder, is included. Predictions concerning crack front shape and size as a function of number of cycles of applied load are made with the Fracture Editor.
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