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Meeting 2027 TMS Annual Meeting & Exhibition
Symposium Verification, Calibration, and Validation Approaches for Mechanical Modeling of Metals
Presentation Title Cracking induced by dislocation pileups against grain boundaries
Author(s) Boyang Gu, Adrian Diaz, Yang Li, Jiaqi Sun, Youping Chen
On-Site Speaker (Planned) Boyang Gu
Abstract Scope Stroh established the first quantitative criterion for crack nucleation from dislocation pileups against grain boundaries by combining pileup-induced tensile stress with the requirement that crack formation reduces the total system energy. In this work, the Concurrent Atomistic–Continuum (CAC) method is employed to simulate dislocation pileups against grain boundaries and the associated crack nucleation process at the mesoscale. The evolution of dislocation pileups, local tensile stress, system energy, and crack nucleation will be quantified to evaluate the analytical predictions of Stroh's criterion.
Proceedings Inclusion? Planned:
Keywords Modeling and Simulation, Mechanical Properties,

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