Senior research engineer, Caterpillar Inc., Technical Center, Peoria, IL
Professor, University of Illinois at Urbana-Champaign, Urbana, IL
Pages: 16 Published: Jan 1999
A 2-D analytical model which is termed the PICC-RICC model combines the effects of plasticity-induced crack closure (PICC) and roughness-induced crack closure (RICC). The PICC-RICC model handles naturally the gradual transition from RICC to PICC dominated crack growth. In this study, the PICC-RICC model is combined with a crack nucleation model to predict the total fatigue life of a notched component. This modified PICC-RICC model will be used to examine several controversial aspects of an earlier, computationally simpler total-life model known as the IP model.
crack closure, notches, total fatigue life, fatigue life prediction models
Paper ID: STP15767S