Analytical Method To Predict Initiation Of Multiple Site Damage At Mechanical Joints
Price
Free (open access)
Transaction
Volume
26
Pages
11
Published
2000
Size
1,007 kb
Paper DOI
10.2495/DM000211
Copyright
WIT Press
Author(s)
G.S. Wang and A.F. Blom
Abstract
An analytical method has been developed to predict the onset of multiple site damage at mechanical joints. The crack initiation is predicted based on non-linear stress analyses and the crack closure model. In this solution, the small crack behaviour as well as the post yield effect have been accounted for. Intrinsic material parameters have been used extensively so that the method is not limited to the specified problems. A probabilistic solution has been implemented to account for uncertainties in initial flaws, the stochastic crack propagation, the geometrical inconsistency, as well as the variation in fatigue loading. As a result, important information about the onset of multiple site damage, e.g. the probability of crack occurrence, and the probability of crack break-through
Keywords