| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Verification, Calibration, and Validation Approaches in Modeling the Mechanical Performance of Metallic Materials
|
| Presentation Title |
A Critical Analysis on the Predictive Capabilities of Different Criteria for Ductile Failure Initiation in Metallic Materials |
| Author(s) |
Elad Priel, Nitzan Rom, Jacob Bortman |
| On-Site Speaker (Planned) |
Elad Priel |
| Abstract Scope |
Predicting ductile damage in metallic materials is a challenging topic. When the component has an initial crack, theories and tools from fracture mechanics are employed. However, when analyzing failure of a ductile material component, which does not contain a macroscopic initial crack, several approaches are reported in the literature.
In the current study, four different ductile failure criteria were implemented in the finite element framework and used to study the ductile failure process of Al204 and Al7075 specimens. The failure criteria included stress based, energy based and strain based formulations.
Several different sets of experiments were used to determine the model parameters. Then these same parameters were used to predict failure initiation for a different set of experiments with different geometries and under a complex stress and strain state. A critical analysis of the performance of the different ductile failure criteria was then conducted. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Mechanical Properties, Computational Materials Science & Engineering |