Predicting Large Scale Crack Growth In 3D Finite Element Models
B. Browning, G. Cook, C. Timbrell
Abaqus Users' Conference, Maastricht, The Netherlands, May 30 - June 1 2001
Abstract:
Crack growth prediction techniques have been available for 3D models
under mixed mode loading for a number of years. Previous techniques were
limited to crack growth within a small region of a model. A new method
is presented for automatically predicting large scale crack growth in a
3D finite element model by allowing the crack front to move through the
model. Some simple examples are presented in addition to comparison of
analysis results against published experimental spin test data for a
cracked turbine engine compressor disc. This spin test analysis includes
high levels of plasticity and crack closure effects.