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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Fatigue in Materials: Fundamentals, Multiscale Modeling and Prevention
Presentation Title Non-local Stored Energy and J-integral Methods for Microstructure-sensitive Crack Growth
Author(s) Fionn Dunne, David Wilson
On-Site Speaker (Planned) David Wilson
Abstract Scope The stage of crack growth during which a strong microstructural sensitivity exists may comprise a quite substantial fraction of fatigue life. The path of the crack growth is often tortuous being influenced by local grain-level anisotropic elasticity and slip, as well as by morphological, crystallographic and grain boundary features (and many others); mixed trans- and inter-granular growth modes are often observed. The rate of growth is also significantly influenced by these features. Hence this study addresses techniques for the quantification of crack growth at the microstructurally-sensitive level. A J-integral approach has been established within a crystal plasticity framework in order to address quantitatively the role of microstructural features. A new non-local stored energy technique has also been established and the two approaches are compared in the context of single and oligocrystal crack growth. The diminution of microstructural sensitivity of crack growth is also addressed.
Proceedings Inclusion? Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)


A Continuum Damage Model for Creep-Fatigue Interactions
A General Probabilistic Framework Combining Experiments and Simulations to Identify the Small Crack Driving Force
A Microstructure-Sensitive Fatigue Crack Growth Study Based on Experimental Measurements and Computational Modeling in Al-Si Cast Alloys
A Physically Based Law for S-N Fatigue Behavior of Metals
Advances in Mesoscale Crystal Plasticity under Cyclic Loading
Characterization of Crack Propagation in Ni-based Superalloys Using High Energy X-ray Techniques
Correlating Experiments and Simulations to Develop Predicative Capabilities for Fatigue Crack Initiation in Ni-based Superalloys
Correlation of Microstructural Configurations to Fatigue Indicator Parameters
CPFE Simulations and In-situ Laue Micro-diffraction to Reveal the Geometry of a Forming Vein during Fatigue
Crack Initiation and Propagation in Nickel-based Superalloy Microcrystals during In Situ Scanning Electron Microscopy High Cycle Fatigue Testing
Creep-fatigue Damage Mechanism in Cyclically-Softened Mod.9Cr-1Mo Ferritic-Martensitic Steel
Creep, Fatigue and Environmental Interactions and Their Effect on Crack Growth in Superalloys
Damage Evolution in Thin Tin Sheets During Creep Fatigue Loading
Development of Advanced Nickel-Titanium-Hafnium Alloys for Tribology Applications
Effects of Alloying and Microstructure on Ultrasonic Fatigue Behavior of Binary Ti-Al Alloys
Effects of Induced Surface Defects on Crack Initiation and Fatigue Strength for HCF and VHCF of a Structural Steel
Enhancing Fatigue Life through Ultrasonic Shot Peening
Fatigue Assessment of a Railway Wheel Steel in the VHCF-regime
Fatigue Crack Growth and Fracture of Flexible Metallic Sheets
Fatigue Crack Initiation and Fatigue Crack Growth Behavior of AA7050-T7451 with Different Corrosion Morphologies
Fatigue Deformation Mode in a Polycrystalline Nickel Base Superalloy at Intermediate Temperature: Oxidation Assisted Process
Fatigue Mediated Lattice Rotation in Al Alloys at Room Temperature
Finite Elements Simulation and Statistical Analysis of Elastic Stress Field at Surface of Ti6Al4V Polycrystals in the Presence of Textured Regions
Grain Size Effects on Fatigue Crack Growth in Nanocrystalline NiTi
ICME and Computational Mechanics for Advancing Predictive Capabilities in Fatigue Modeling
Identifying Failure Locations in Nickel Based Superalloy R88DT under Cyclic Loadings, via Crystal Plasticity Simulations
In Situ Microstructural Fatigue Investigation of Magnesium Alloys
Investigating Very High Cycle Fatigue Behavior of Ti-6242S Using In-situ Ultrasonic Fatigue in an E-SEM
Investigation of Neighborhood Effects on Crack Initiation Sites in Different Ti Microstructures
L-69: Acoustic Induced Vibration and Failure Assessment in Piping; Fluid-Structural-Interface
L-70: Crack Initiation and Propagation Modeling Using Extended Finite Element Method (XFEM): A Review
L-71: Crack Initiation in a Ni-based Superalloy Studied by Miniaturised Ultrasonic Fatigue Testing
L-72: Creep, Damage and Fatigue Failure of Sn3.0Ag0.5Cu Solder Joints
L-74: Effect of Laser Ablation Coating Removal (LACR) on the Fatigue Behavior of a Steel Substrate
L-75: Effects of Deformation Behaviors on S-N Fatigue Properties of High-Mn Steels at Ambient and Cryogenic Temperatures
L-77: Fatigue Crack Initiation and Fatigue Crack Growth Behavior of Pre-Ccrroded AA7050-T7451
L-79: Finite Element Analyses of Pure Ni Cold Spray Particles Impact Related to Coating Crack Behavior
L-81: Micromechanical Analysis of Acoustically Induced Vibration; Piping Bulging and Thinning
L-83: The Effect of Rare-earth Additions on Low-cycle Fatigue Behavior in Mg Alloys
L-84: The Effects of Microstructure on Fatigue in a Polycrystalline Nickel Base Superalloy at Intermediate Temperature
L-85: VHCF Strength of Spring Steel with Small Scratches
Linking Length Scales during Fatigue: Investigating the Effect of Microscale Strain Localization on Macroscopic Response
Low Cycle Fatigue Behavior of Direct Metal Laser Sintered Inconel Alloy 718: Experiments and Crystal Plasticity Modeling
Low Cycle Fatigue Properties of a CoCrFeMnNi Equiatomic High-entropy Alloys
Micromechanics of Biaxial Cold Dwell Fatigue Mechanisms in Ti-7Al Elucidated Using Far-field High-energy Diffraction Microscopy
Miniaturised Ultrasonic Fatigue Testing
Non-local Stored Energy and J-integral Methods for Microstructure-sensitive Crack Growth
Nondestructive Evaluation as a Link between Fatigue Diagnostics and Prognostics
Novel High-throughput Experiments for Early Damage Evolution in FCC Materials in the High and Very Cycle Fatigue Regime
On the Effects of Multiaxial Stress on Facet Nucleation in Cold Dwell Fatigue
Perspectives and Prospects for Microstructure-based Models to Quantify Fatigue Life
Physically-based Simulation of Surface Microcrack Initiation and Comparison with Experimental Data
Probabilistic Analysis of the Fatigue Incubation Life Distribution in an A713 Cast Aluminum Alloy Based on a Multi-sized Pore-sensitive Numerical Model
Research Directions in Materials Engineering and Fatigue: An NSF Engineering Perspective
Short Crack Growth in Ni-base Superalloys during Micro-bending Fatigue
Simulation of Microstructurally-influenced Fatigue Crack Propagation
Slip Transmission between Primary Alpha Grains during the Low Cycle Fatigue of Ti 6242Si
Statistical Prediction of Crack Initiating Rate from Pre-fractured Constituent Particles in High Strength Al Alloys
Strain Field Mining of Cyclic Damage Accumulation in Nonwoven Fiber Composites
Strain Mapping and Mining to Quantify the Extent of Cyclic Damage and Transverse Necking in Thin Metallic Sheets
The Effect of Grain Boundaries on Short Crack Growth Behavior in WE43 Magnesium
The Influence of Operating Slip Systems on the Dwell Sensitivity of Titanium Alloys
The Role of Particle Fracture in Early Fatigue of Aluminum Alloys
Toward the Use of Machine Learning to Understand and Predict Microstructurally Small Fatigue-Crack Evolution

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