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Meeting MS&T24: Materials Science & Technology
Symposium Fracture in Metals: Insights from Experiments and Modeling Across Length and Time Scales
Organizer(s) Abigail Hunter, Los Alamos National Laboratory
Nithin Mathew, Los Alamos National Laboratory
Janel Chua, Los Alamos National Lab
Scope Much research has been done in the past several decades, using both experiments and a wide-variety of modeling techniques, to investigate damage evolution and fracture. However, it is still extremely difficult to reliably predict material failure in metals and alloys. One key challenge to developing predictive tools that can capture material failure is that damage evolution is inherently coupled with other physics, such as dislocation-mediated plasticity and twinning. Moreover microstructural features, solutes, and impurities also impact the evolution of damage. This symposium aims to address this challenge by bringing together researchers and experts from various disciplines to discuss cutting-edge experimental and theoretical contributions that deepen our understanding of ductile and brittle fracture in metals and alloys. We are therefore seeking contributions of experiments and theoretical modeling that would help advance mechanistic understanding of fracture in metals, and also how to better predict material failure. As this is a multi-scale problem, submissions that address this problem across all time and length scales, and novel techniques to span across length and time scales are welcome. Topics of interest include (but are not limited to): in-situ experimental results, numerical simulations of dislocation dynamics and its interaction with fracture, multi-scale modeling for predicting fracture initiation and propagation, methods that investigate the role of microstructure on fracture/damage nucleation and propagation, approaches that can help to elucidate the coupling between plasticity and fracture/damage, combined experimental and numerical studies addressing damage evolution and failure, studies that address uncertainty in predicting material failure, and studies that address fracture/damage nucleation and propagation under complex loading conditions, such as high rate loading, radiation, high temperatures or pressures, combined loading conditions, etc.
Abstracts Due 05/15/2024

3D Surrogate Model Training Using Active Learning with Elasto-Viscoplastic FFT Simulations of Pore Morphologies from Laser Powder Bed Fusion of Ti64
A Phase-Field Fracture Model for Compressive Loading
Analysis of Microstructure and Fracture Characteristics of X65 Line Pipe Steels from Pilot vs. Production Trials in Air and Gaseous Hydrogen Environment
Assessment of the Transition Temperature Based on Multiscale Modeling of Mechanical Behavior
Atomistic Studies of Hydrogen Effects on Cross-slip in Ni and Fe70Ni10Cr20
Dislocation-based Damage Model via a Mesoscale Defect Dynamics Modeling
Ductility and Brittle Fracture of Tungsten: The Role of Twin Boundaries and Pre-existing Dislocations
Dynamic Testing of Nanoporous Gold Adhesive Strength Using a Shock Tube
Experimental Determination of Monotonic and Reversed Plastic-Zone Ahead of Crack-tip in Fatigue Using High-Resolution Digital Image Correlation
Fracture in Functionally Graded Materials: A Mixed Experimental and Computational Approach
In-situ Measurement of Damage Evolution in Shocked Magnesium as a Function of Microstructure
Is There a Quantitative Relationship Between Strain Localization and Ductility in Ti Alloys?
Microcantilever Testing for Brittle-To-Ductile Transition Temperatures
Novel Analysis of High Temperature Corrosion Products and Porosity on Uncoated Single Crystal RenÚN5 Superalloy
Phase-field Thermomechanics of Dynamic Fracture
Polycrystalline Scale Study of H-Defect Interactions to Investigate H-Enhanced Localized Plasticity
Tensile deformation characteristic and SASH modeling of superni 625 alloy: Synergistic effects of coarse-grain size, phase transformation and deformation micromechanisms
The Influence of Substantial Intragranular Orientation Gradients on the Micromechanical Response of Heavily-Worked Material
The Large Structural Size Effect in Charpy Impact Fracture of Steels: Novel Net-Section Mechanics Approach to Quantify the Size Effect and Scaling Laws
The Role of Non-Singular Stresses on the Brittle-to-Ductile Transition
Thermally Activated Dislocation Motion and the Brittle-to-Ductile Transition Temperature
Thermo-Mechanical Insights into Titanium Content in TiAlTa Alloys

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