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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium 100 Years and Still Cracking: A Griffith Fracture Symposium
Sponsorship TMS Materials Processing and Manufacturing Division
TMS: Nanomechanical Materials Behavior Committee
Organizer(s) Megan J. Cordill, Erich Schmid Institute of Materials Science
William Gerberich, University of Minnesota
David F. Bahr, Purdue University
Christopher A. Schuh, Northwestern University
Daniel Kiener, Montanuniverstitšt Leoben
Neville R. Moody
Nathan A. Mara, University of Minnesota
Erica Thea Lilleodden, Fraunhofer Insitute for Microstructure of Materials and Systems (IMWS)
Scope While today’s materials scientists know the Griffith criteria and its eventual impact on basic research, many may not be aware on how little impact it initially had on basic and applied research. Particularly, there was little academic instruction, and industry relied on the Charpy V-notch test as a standard. One could tell the impact by examining Timoshenkso’s 1941 book. Here it was mentioned that Griffith admitting that “very fine scratches on glass do not produce a weakening effect was because there were internal defects in the glass with just as high a stress concentration factor.” Following Timoshenko was Nadai’s 1951 book which demonstrated some advances in experimental insight, as electron microscopy and sophisticated test systems for fracture analysis were in their infancy. It was not until the rapid advances in aerospace and aeronuatics in the late 50’s that basic research was able to widely take advantage of the Griffith methodology at large research enterprises and establish the ASTM E-24 fracture toughness standard. While this was largely a response to needing improved aircraft and “deeper” space probes, it provided all engineering and basic science an order of magnitude increase in sophistication. In recognition of the importance of Griffith’s work on the materials community, this symposium will provide researchers the opportunity to provide of fundamental and practical advances in fracture, with a focus on small scales, dynamics, expanded temperature and time, and imaging advances, and to provide historical context to their current work.

The subject areas of the symposium include, but are not limited to:
• Local analysis of stress and strain around crack tips
• Fracture of nanostructured materials (thin films, printed structures, nanocrystalline materials, …)
• Size effects on fracture behavior
• New developments in fracture testing techniques using coupled in-situ measurements (electrical, optical, mechanical, etc.) or in enhanced environments (high temperatures, humidity controlled, etc.)
• Atomistic and finite element modelling of fracture
• Brittle fracture in heterogeneous materials
• Strategies to avoid brittle fracture
• Interface and grain boundary fracture

Abstracts Due 07/20/2020
Proceedings Plan Planned:

2,000 Years and Still Getting Dull: Mechanisms of Blade Chipping
A Griffith's Theory-based Model for Strength of Silicon Nitride Nanoporous Membranes from Atomistic Simulation Perspective
A Length-scale Independent Phase-Field Model for Quantitative Prediction of Ductile Fracture
Characterization of a Novel Crack Growth Mechanism in Ti-6Al-4V Subjected to Dwell Fatigue at Elevated Temperature
Crack Driving Force Expressions Using Compliance Approach in Clamped Beam Bending Geometry
Designing Ductility in BCC High Entropy Alloys?
Dislocation Pathways in Refractory Multi-principal Element Alloys
Dislocations Processes in Fracture and Toughening Mechanisms of UFG bcc Metals at Room Temperature
Domain Nucleation in Ferroelastic Microcrystals: Competition between Twinning, Slip and Fracture
EAM Potential for Liquid Metal Induced Fracture
Effect of Aspect Ratio on Stress Intensity Factor Solutions for Single Edge Notch Wire Fracture Test Specimen under Tensile and Clamped Bend Loading Conditions
Fracture-based Reuse of Single Crystal Wafers for High-Efficiency Photovoltaics
Fracture and Adhesion in Small Scale Devices– Microswitches, Microcantilevers and Micron-thick Films
Fracture Resistance of Hierarchical Metallic Nanocomposite Thin Films
High-strength and Thermal Stability of Nanotwinned Al Alloys
Imaging the Chemo-mechanical Coupled Fracture in Metal Passivation Layer by In-situ TEM
Improving Metal-polymer Adhesion through Alloy Development
In-situ Fracture along Distinct Interface Types
In Situ Observations and Measurements of Local Plastic Deformation and Fracture with 4D-STEM
Introductory Comments: 100 Years and Still Cracking: A Griffith Fracture Symposium
Leveraging Griffith’s Energy Balance in Extreme Environments
Modeling Insights into Micro Single-Edge Bend Fracture Toughness Testing of Multilayered Metal-ceramic Cu/TiN and Al/TiN Nanocomposite Thin Films
Modeling Mechanics of Nanoparticles: Everything but Size
Nanomechanics of Amorphous Silica: From Mechanical to Fracture Properties
On the Fracture of Multi-element Metallic Alloys
On the Transition from Shear Banding to Fracture in Metals: In Situ Analysis of Plastic Flow and Deformation Fields
Probing Small-scale Fracture and Plasticity in Quasicrystals and High-entropy Alloys
Quantitative Phase-Field Modeling of Crack Propagation in Multi-Phase Material Based on Griffith’s Fracture Theory
Reversing Griffith after 100 Years: Mechanics of the Solid-state Bonding
The Clamped Beam Bending as a Length Scale Compatible Fracture Test Geometry
The Curious Phenomenon of Prince Rupert's Drops
The Maximum Limit of Compressive Strength and Hardness of Nanocrystalline MgAl2O4 Spinel
The Role of Fracture in the Reduction of Iron Ore with Hydrogen
Transformation-induced Cracking in ZrO2 Shape-memory Ceramics: towards Cyclic Stability in Polycrystals

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