Abstract
Fracture analysis of turbine blades is a critical aspect of turbomachinery design. However, direct numerical analysis of fractures on blades is limited by the complexity of blade structures and discontinuity-induced singularities it meets. Peridynamics (PD) methods are applied to describe discontinuous problems and thus promising for simulating blade fractures. In this paper, a PD method is used to numerically analyze a blade whose shroud is fractured. The established model effectively describes the cracking process and predicts the cracking path. Besides, corrosion-accelerated cracking behaviors are numerically examined, highlighting the ability of PD to solve multi-physical cracking problems in complex structures.
Published Version
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