| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
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Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales V
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| Presentation Title |
Plastic Deformation and Failure Predictions of Al-6061 with Inhomogeneities Using Finite Element Modeling Techniques Across Different Length Scales |
| Author(s) |
Nicole K. Aragon, Aashique A. Rezwan, Ill Ryu, Hojun Lim |
| On-Site Speaker (Planned) |
Nicole K. Aragon |
| Abstract Scope |
The presence of a void or secondary particle generates a stress concentration and plays a crucial role in both the mechanical response and damage evolution of metals. This work presents local stress and strain field predictions in a single crystalline matrix near a spherical void or hard inclusion. To characterize the effect of a material inhomogeneity, different modeling techniques at various length scales are utilized, such as an isotropic J2 plasticity finite element model, a coupled dislocation dynamics-finite element model, a crystal plasticity finite element model, and a phase-field fracture model. In this talk, simulation results from each model will be presented with the aim of correlating the microstructure characteristics and the mechanical behavior. In addition, results will be compared with the intention of bridging simulation length scales to obtain a better understanding of the influence of crystallographic orientation and its effect on failure predictions. |