Advanced Peridynamics Modeling for Predicting Anisotropic Crack Growth in Forged Materials

Abstract

This research leverages advanced Peridynamics simulation techniques to investigate the phenomenon of anisotropic strength properties within forged components. Considering the elastic isotropic properties, the anisotropic strength behavior observed in the investigated materials is attributed to the intricate internal structure. Traditional fracture models often struggle to capture the complexities associated with anisotropy, especially when considering the unique microstructural features of forged materials. The presented peridynamic model is an extension of an energy-based damage model with a direction-dependent crack opening behavior. By utilizing the bond direction and the respective critical energy release rate, it is possible to predict the damage behavior of anisotropic materials with very few input parameters and assumptions. Our investigation employs the principles of peridynamics, with a particular focus on the anisotropic strength inherent in the analyzed forged component. By accounting for the direction-dependent mechanical properties arising from the material's internal arrangement, our simulation model offers a more sufficient representation. Thus, resulting in a more comprehensive simulation of forged components and their anisotropic microstructure effects, enabling cost-effective and repetitive testing.