Meetings & Events

MRS Fall 2009 Meeting Logo

2009 MRS Fall Meeting & Exhibit

November 30 - December 4, 2009 | Boston
Meeting Chairs
: Kristi Anseth, Li-Chyong Chen, Peter Gumbsch, Ji-Cheng Zhao

Symposium GG : Plasticity in Confined Volumes--Modeling and Experiments

2009-11-30   Show All Abstracts

Symposium Organizers

Peter M. Derlet Paul Scherrer Institut
Daniel Weygand Universität Karlsruhe, izbs
Ju Li University of Pennsylvania
Mike D. Uchic Air Force Research Laboratory
Eric Le Bourhis Université de Poitiers
GG1: Plasticity of Small-Scale Systems - Experiment
Session Chairs
Eric Le Bourhis
Andrew Minor
Monday AM, November 30, 2009
Room 300 (Hynes)

9:30 AM - **GG1.1
Size Effects Resulting from Interactions of Material and Specimen Length Scales in Micropillar Compression and Nanoindentation.

H. Bei 1 , S. Shim 2 , J. Morris 1 3 , G. Pharr 3 1 , E. George 1 3
1 Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States, 2 Steel Structure Research Laboratory, Research Institute of Industrial Science and Technology, Gyounggi Korea (the Republic of), 3 Materials Science and Engineering Department, University of Tennessee, Knoxville, Tennessee, United States

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10:00 AM - GG1.2
Experimental Investigation of Geometrically Necessary Dislocations Beneath Small Indents of Different Depths using EBSD Tomography.

Dierk Raabe 1 , Eralp Demir 1 , Stefan Zaefferer 1
1 , Max Planck institute, Dusseldorf Germany

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10:15 AM - GG1.3
Micro Structural Evolution in Un-Tapered Ni Pillars.

Robert Maass 3 , Steven Van Petegem 1 , Michael Uchic 2 , Helena Van Swygenhoven 1
3 , Swiss Federal Institute of Technology (ETHZ), Zurich Switzerland, 1 NUM/ASQ, PSI, Villigen Switzerland, 2 , Air Force Research Labs RXLM, Wright-Patterson AFB, Ohio, United States

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10:30 AM - **GG1.4
An Experimental Investigation of Intermittent Flow and Strain Burst Scaling Behavior in LiF Crystals During Microcompression Testing.

Dennis Dimiduk 1 , Ed Nadgorny 2 , Chris Woodward 1 , Michael Uchic 1 , Paul Shade 3 1
1 AFRL/RXLM Bldg 655, Air Force Wright Rresearch Laboratory, Wright-Patterson AFB, Ohio, United States, 2 Department of Physics, Michigan Technological University, Houghton, Michigan, United States, 3 , UTC, Inc., Dayton, Ohio, United States

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11:00 AM - *
break

11:30 AM - GG1.5
Microcompression Experiments on bcc Metals.

Daniel Kaufmann 1 , Reiner Moenig 1 , Andreas Schneider 3 , Cynthia Volkert 2 , Oliver Kraft 1
1 IMF 2, Forschungszentrum Karlsruhe, Eggenstein-Leopoldshafen Germany, 3 , Max-Planck-Institut für Metallforschung, Stuttgart Germany, 2 Institut für Materialphysik, Georg-August-Universität , Göttingen Germany

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11:45 AM - GG1.6
A Microcompression Study of Mg Single Crystal.

Erica Lilleodden 1 , Gyu Seok Kim 1 2
1 Institute of Materials Research, GKSS Research Center, Geesthacht Germany, 2 Science et Ingénierie des Materiaux et Procédés (SIMaP-GPM2) , Grenoble Institute of Technology, Grenoble France

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12:00 PM - GG1.7
Size Dependent Brittle to Ductile Transition in Semiconductors.

Rudy Ghisleni 1 , Fredrik Ostlund 1 , Philip Howie 2 , Sandra Korte 2 , William Clegg 2 , Johann Michler 1
1 Laboratory for Mechanics and Nanostructures, EMPA - Swiss Federal Laboratories for Materials Testing and Research, Thun Switzerland, 2 Gordon Laboratory, Department of Materials Science and Metallurgy, Cambridge University, Cambridge United Kingdom

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12:15 PM - GG1.8
Insights from In situ Compression Testing of Vanadium Nanopillars in a Transmission Electron Microscope.

Daniel Kiener 1 , Jia Ye 1 , Patric Gruber 2 , Andreas Schneider 3 , Claire Chisholm 4 , Andrew Minor 1 4
1 National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California, United States, 2 Institut fuer Materialforschung II , Forschungszentrum Karlsruhe GmbH , Karlsruhe Germany, 3 , Max Planck Institute for Metals Research, Stuttgart Germany, 4 Department of Materials Science and Engineering, University of California, Berkeley, California, United States

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12:30 PM - **GG1.9
Confined Dislocation Plasticity: Nucleation, Kinetics, and the Size Effect.

William Gerberich 1 , Aaron Beaber 1 , Douglas Stauffer 1 , Andre Mkhoyan 1 , Ozan Ugurlu 2
1 Chem. Engng. and Mat. Sci., U of Minnesota, Minneapolis, Minnesota, United States, 2 Charcterization Facility, U of Minnesota, Minneapolis, Minnesota, United States

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GG2: Plasticity of Small-Scale Systems - Simulation
Session Chairs
Peter Derlet
Daniel Weygand
Monday PM, November 30, 2009
Room 300 (Hynes)

2:30 PM - **GG2.1
Comparison of 3-D Discrete Dislocation Dynamics Simulations and in-situ Experiments: Monotonic and Cyclic Micro Bending Tests.

Christian Motz 1 2 , Jochen Senger 2 , Daniel Weygand 2 , Peter Gumbsch 2 3 , Reinhard Pippan 1
1 Erich Schmid Institute, Austrian Academy of Sciences, Leoben Austria, 2 IZBS, University of Karlsruhe (TH), 76131 Karlsruhe Germany, 3 IWM, Fraunhofer Institut fuer Werkstoffmechanik, 79108 Freiburg Germany

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3:00 PM - GG2.2
Deformation Mechanism Models in Nanoporous Metals.

Brian Derby 1 , Rui Dou 1
1 School of Materials, University of Manchester, Manchester United Kingdom

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3:15 PM - GG2.3
Size Effects in the Deformation of Sub-micron Specimens: Heterogeneous Deformation and Dislocation Dynamics.

Hussein Zbib 1 , Sreekanth Akarapu 1 , David Bahr 1
1 School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington, United States

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3:30 PM - **GG2.4
Distribution of Dislocation Source Length and Size-dependent Plasticity in Freestanding Thin Films.

Erik Van der Giessen 1 , Siamak Soleymani Shishvan 2
1 Zernike Institute for Advanced Materials, University of Groningen, Groningen Netherlands, 2 Dept. of Structural Engineering, University of Tehran, Tehran Iran (the Islamic Republic of)

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4:00 PM - *
Break

4:30 PM - **GG2.5
Indentation Crystal Plasticity : Experiments and Multiscale Simulations.

Marc Verdier 1 , Hyung-Jun Chang 1 , Marc Fivel 1 , Laurent Tabourot 2
1 , SIMaP-CNRS, St Martin d Heres France, 2 Symme, Polytech Savoie, Annecy France

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5:00 PM - GG2.6
Evolution of Identical Initial Dislocation Microstructures under Different Loading Conditions Simulated with 3-D Discrete Dislocation Dynamics.

Jochen Senger 1 , Daniel Weygand 1 , Christian Motz 1 2 , Peter Gumbsch 1 3 , Oliver Kraft 1 4
1 , IZBS, Universität Karlsruhe (TH), Karlsruhe Germany, 2 , Erich Schmid Institute, Leoben Austria, 3 , IWM, Freiburg Germany, 4 , IMF II, Forschungszentrum, Karlsruhe Germany

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5:15 PM - GG2.7
Modeling the Role of Pre-existing Defects on the Statistical Behavior of Nanoscale Plasticity.

James Morris 1 2 , Hongbin Bei 1 , George Pharr 2 1 , Easo George 1 2
1 Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States, 2 Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee, United States

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5:30 PM - GG2.8
Transformation-Induced Plasticity in Pseudoelastic, Single-Crystal NiTi Micropillars.

Peter Anderson 1 , Sivom Manchiraju 1 , David Norfleet 2 , Peter Sarosi 3 , Michael Mills 1 , Michael Uchic 4
1 Department of Material Science and Engineering, The ohio state university, Columbus, Ohio, United States, 2 , Engineering Systems Inc, Aurora, Illinois, United States, 3 , GM Research and Development Center, Warren, Michigan, United States, 4 , Air Force Research Laboratory, Materials & Manufacturing Directorate, Wright-Patterson AFB, Ohio, United States

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5:45 PM - GG2.9
Breakdown of Self-Similar Hardening Behavior in Au Nanopillar Microplasticity.

Jaime Marian 1 , Jaroslaw Knap 2
1 , Lawrence Livermore National Laboratory, Livermore, California, United States, 2 , Army Research Laboratory, Aberdeen Proving Ground, Maryland, United States

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2009-12-01   Show All Abstracts

Symposium Organizers

Peter M. Derlet Paul Scherrer Institut
Daniel Weygand Universität Karlsruhe, izbs
Ju Li University of Pennsylvania
Mike D. Uchic Air Force Research Laboratory
Eric Le Bourhis Université de Poitiers
GG3: <i>In-situ</i> Studies of Plasticity &amp; Novel Experimental Methods
Session Chairs
Daniel Kiener
Mike Uchic
Tuesday AM, December 01, 2009
Room 300 (Hynes)

9:30 AM - **GG3.1
Probing the Mechanical Properties of Nanostructures in the TEM.

Andrew Minor 1 , Jia Ye 1 , Daniel Kiener 1 , Claire Chisholm 1 , Raj Mishra 2 , Zhiwei Shan 3 , Oden Warren 3
1 , UC Berkeley & LBL, Berkeley, California, United States, 2 , General Motors R&D Center, Warren, Michigan, United States, 3 , Hysitron, Inc., Minneapolis, Minnesota, United States

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10:00 AM - GG3.2
Dislocation Nucleation in Confined Crystalline Volumes: In-situ TEM Observations and Micro-mechanical Tests on Submicron Al Fibers.

Marc Legros 1 , Frederic Mompiou 1 , Daniel Caillard 1 , Daniel Gianola 2 , Andreas Sedlmayr 4 , Oliver Kraft 4 , John Sharon 3 , Kevin Hemker 3
1 , CEMES-CNRS, toulouse France, 2 Dept. Mat. Sci. Eng., University of Pennsylvania, Philadelphia, Pennsylvania, United States, 4 Institute for Materials Research II, Forschungzentrum Karlsruhe, Karlsruhe Germany, 3 Dept. Mech. Eng., Johns Hopkins University, Baltimore, Maryland, United States

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10:15 AM - GG3.3
In-situ Laue Diffraction during Compression of Mo Pillars.

Julien Zimmermann 1 , Hongbin Bei 2 , Steven Van Petegem 1 , Easo George 2 3 , Helena Van Swygenhoven 1
1 NUM/ASQ, PSI, Villigen Switzerland, 2 Div. Mat. Sci. Technol., Oak Ridge Natl. Lab, Oak Ridge, Tennessee, United States, 3 Dept. Mat. Sci. Engn., University of Tennessee, Knoxville, Tennessee, United States

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10:30 AM - GG3.4
3D X-Ray Microscopy Measurement of Mesoscale Deformation Microstructure in Micro-Compression Tested Ni-Superalloy Pillars.

Bennett Larson 1 , Jon Tischler 1 , Michael Uchic 2 , Dennis Dimiduk 2 , Wenjun Liu 3
1 Materials Science & Technology, ORNL, Oak Ridge, Tennessee, United States, 2 , Air Force Research Laboratory, Wright-Patterson AFB, Ohio, United States, 3 , Argonne National Laboratory, Argonne , Illinois, United States

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10:45 AM - GG3.5
In-situ EBSD During Micropillar Compression.

William Mook 1 , Christoph Niederberger 1 , Xavier Maeder 1 , Johann Michler 1
1 Laboratory for Mechanics of Materials and Nanostructures, Empa - Swiss Federal Laboratories for Materials Testing and Research, Thun Switzerland

Show Abstract

11:00 AM - *
break

11:30 AM - GG3.6
A New Criterion for Elasto-plastic Transition in Nanomaterials: Application to Size and Composite Effects on Cu–Nb Nanocomposite Wires.

Ludovic Thilly 1 , Pierre-Olivier Renault 1 , Steven Van Petegem 2 , Helena Van Swygenhoven 2 , Florence Lecouturier 3
1 PHYMAT, University of Poitiers, Futuroscope France, 2 , Paul Scherrer Institute, Villigen Switzerland, 3 , LNCMI, Toulouse France

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11:45 AM - GG3.7
Indentation Cracking as a Toughness Measurement Method at Small Scales.

Jinhaeng Lee 1 , Kurt Johanns 1 , Yanfei Gao 1 2 , George Pharr 1 3
1 Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee, United States, 2 Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States, 3 Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States

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12:00 PM - GG3.8
Development of a Biaxial Tensile Module at Synchrotron Beamline for the Study of Mechanical Properties of Nanostructured Films.

Eric Le Bourhis 1 , Baptiste Girault 1 , Pierre-Olivier Renault 1 , Philippe Goudeau 1 , Guillaume Geandier 2 , Dominique Thiaudiere 2 , Remy Chiron 3 , Olivier Castelnau 3
1 Laboratoire PHYMAT UMR 6630 CNRS, Universite de Poitiers, Futuroscope-chasseneuil Cedex France, 2 DIFFABS, Synchrotron SOLEIL, Gif sur Yvette France, 3 LPMTM – CNRS, Institut Galilee, Universite Paris 13, Villetaneuse France

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12:15 PM - GG3.9
Fatigue Properties of Micro Molded Aluminum Bronze.

Tobias Kennerknecht 1 , Gundi Baumeister 2 , Chris Eberl 1
1 izbs, Universitaet Karlsruhe (TH), Karlsruhe Germany, 2 Fakultaet Maschinenbau, Hochschule fuer angewandte Wissenschaften Fachhochschule Coburg, Coburg Germany

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12:30 PM - **GG3.10
The Deformation Behavior of Nanocrystalline Metals: Insights from Strain Rate Sensitivity and in situ Synchrotron Testing.

Oliver Kraft 1
1 Institut für Materialforschung, Karlsruhe Institute of Technology, Karlsruhe Germany

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GG4: Bulk Metallic Glasses - Experiment &amp; Simulation
Session Chairs
Michael Falk
Eric Le Bourhis
Tuesday PM, December 01, 2009
Room 300 (Hynes)

2:30 PM - GG4.1
Molecular Dynamics Simulation of Cavitation in Metallic Glass.

Shuo Lu 1 , Pavan Valavala 2 , Michael Falk 2 3 4
1 Materials Science and Engineering, Beihang University, Beijing China, 2 Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland, United States, 3 Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland, United States, 4 Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland, United States

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2:45 PM - GG4.2
Avalanches, Size-effects, and Critical Behavior in Shared Model Metallic Glasses.

K. Michael Salerno 2 , Craig Maloney 1 , Mark Robbins 2
2 Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland, United States, 1 Civil and Environmental Engineering, CMU, Pittsburgh, Pennsylvania, United States

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3:00 PM - GG4.3
Nanomechanics of Glasses and Supercooled Melts.

Stefan Mayr 1 2
1 , Leibniz-Institut für Oberflächenmodifizierung e.V., Leipzig Germany, 2 Fakultät für Physik und Geowissenschaften und Translationszentrum für Regenerative Medizin, Universität Leipzig, Leipzig Germany

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3:15 PM - GG4.4
Size Dependence of Flow Stress in Amorphous Nano-wires During Straining at Temperatures Near the Glass Transition.

Yujie Wei 1 2 , Allan Bower 2 , Huajian Gao 2
1 Mechanical Engineering, University of Alabama, Tuscaloosa, Alabama, United States, 2 , Brown University, Providence, Rhode Island, United States

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3:30 PM - **GG4.5
Shear Deformation of Hard-Sphere Colloidal Glasses.

Frans Spaepen 1
1 School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, United States

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4:00 PM - *
break

4:30 PM - **GG4.6
Confined Plasticity in Metallic Glasses: Experiments and Simulations.

Christopher Schuh 1
1 Materials Science and Engineering, MIT, Cambridge, Massachusetts, United States

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5:00 PM - GG4.7
Effect of Dilatation on the Elasto-plastic Response of Bulk Metallic Glasses under Indentation.

Anamika Prasad 1 , Ming Dao 1 , Upadrasta Ramamurty 2
1 , Massachusetts Institute of Technology, Cambridge, Massachusetts, United States, 2 Department of Materials Engineering, Indian Institute of Science, Bangalore India

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5:15 PM - GG4.8
Transition from Strong-yet-brittle to Stronger-and-ductile by Size Reduction in Metallic Glasses.

Dongchan Jang 1 , Julia Greer 1
1 Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California, United States

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5:30 PM - GG4.9
Understanding Extrinsic Ductility in Porous Bulk Metallic Glasses from Molecular Dynamics Simulations.

Yunfeng Shi 1
1 Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York, United States

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5:45 PM - GG4.10
Aging and Plastic Flow in Metallic Glasses: Monte Carlo Simulations Based on the Activation-Relaxation Technique.

David Rodney 1 2 , Christopher Schuh 2
1 Science et Ingenierie des Materiaux et Procedes, Grenoble Institute of Technology, Saint Martin d Heres France, 2 Materials Science and Engineering, Massachussetts Institute of Technology, Cambridge, Massachusetts, United States

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GG5: Poster Session: Plasticity in Confined Volumes
Session Chairs
Peter Derlet
Eric Le Bourhis
Ju Li
Mike Uchic
Daniel Weygand
Tuesday PM, December 01, 2009
Exhibit Hall D (Hynes)

9:00 PM - GG5.1
Disorder Induced Low Frequency Localized Vibrational Modes and their Role in Initiating Diffusion and Local Plasticity.

Peter Derlet 1
1 NUM - Condensed Matter Theory Group, Paul Scherrer Institut, PSI-Villigen Switzerland

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9:00 PM - GG5.12
Effect of Surface Roughness on Determination of Creep Parameter using Impression Creep Technique.

Wuzhu Yan 1 , Bin Zhao 1 , Zhufeng Yue 1
1 , Department of Engineering Mechanics, Northwestern Polytechnical University, Xi'an, PR China, Xi'an, Shan'xi, China

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9:00 PM - GG5.15
MD Simulation of Dislocation Dynamics in Copper Nanoparticles.

Yoshiaki Kogure 1 , Toshio Kosugi 1 , Tadatoshi Nozaki 1 , Masao Doyama 1
1 , Teikyo University of Science and Technology, Uenohara, Yamanashi, Japan

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9:00 PM - GG5.16
Line Tension Simulation of Solid Solution Hardening by Obstacles of Different Kinds.

Yi Dong 1 , Curtin William 1 , Thomas Nogaret 1
1 Division of Engineering, Brown University, Providence, Rhode Island, United States

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9:00 PM - GG5.17
Effect of Surface Energy on the Plastic Deformation of Nanocontacts.

Milca Aponte-Roman 1 , Sandip Basu 1 , Adrian Mann 1
1 Materials Science & Eng, Rutgers University, Piscataway, New Jersey, United States

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9:00 PM - GG5.18
Bending of Single Crystal Copper Micro Cantilever Beams with Cube Orientation: Finite Element Simulation and Experiments.

Eralp Demir 1 , Franz Roters 1 , Dierk Raabe 1
1 , Max Planck Institute für Eisenforschung, Dusseldorf Germany

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9:00 PM - GG5.19
Size Dependence of Mechanical Strength Observed During Bending of Beams with Rectangular and Circular Cross Sections.

Eralp Demir 1 , Franz Roters 1 , Dierk Raabe 1
1 , Max Planck Institute, Dusseldorf Germany

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9:00 PM - GG5.20
Lower Bound Geometrically Necessary Dislocation (GND) Densities with High Resolution EBSD Measurements.

Muin Oztop 1 , Jeffrey Kysar 1 , Brent Adams 2 , Josh Kacher 2
1 Mechanical Engineering , Columbia University, New York, New York, United States, 2 Mechanical Engineering, Brigham Young University, Provo, Utah, United States

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9:00 PM - GG5.21
Quantifying Near-Surface Machining Damage in High Yield Stress Materials.

Benjamin Groth 1 , Sandip Basu 1 , Adrian Mann 1
1 Materials Science and Engineering, Rutgers University, Piscataway, New Jersey, United States

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9:00 PM - GG5.22
Super-hard Nanobuttons: Constraining Crystal Plasticity at the Nanoscale and Dealing with Extrinsic Effects.

Antonio Rinaldi 1 2 , Silvia Licoccia 1 , Enrico Traversa 1 , Pedro Peralta 2 , Cody Friesen 2 , Karl Sieradzki 2
1 NAST center and Department of Chemical Science and Technology, Univ Rome Tor Vergata, Rome Italy, 2 MAE, Arizona State University, Tempe, Arizona, United States

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9:00 PM - GG5.25
Modelling of Dislocation Self-ordering in Nanometric SiGe Islands Grown on Si(001) Substrate.

Anna Marzegalli 1 , Francesca Boioli 1 , Riccardo Gatti 1 , Vladimir Zinovyev 2 , Francesco Montalenti 1 , Leo Miglio 1
1 Material Science Department, Università degli studi di Milano Bicocca, Milano Italy, 2 , Institute of Semiconductor Physics, Novosibirsk Russian Federation

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9:00 PM - GG5.26
First-Principles Study of the Bonding and Mechanical Properties of Grain Boundaries in Al and Cu.

Masanori Kohyama 1 , Shigeki Saitou 1 , Yoshinori Shiihara 2 , Ru-Zhi Wang 3 , Shingo Tanaka 1 , Tomoyuki Tamura 2 , Shoji Ishibashi 2
1 Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology, Ikeda, Osaka, Japan, 2 Research Institute for Computational Sciences, National Institute of Advanced Industrial Science and Technology, Tukuba, Ibaraki, Japan, 3 College of Materials Science and Engineering, Beijing University of Technology, Beijing China

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9:00 PM - GG5.29
Dislocation Engineering in SiGe Heteroepitaxial Films on Nanopatterned Si (001) Substrates.

Riccardo Gatti 1 , Francesca Boioli 1 , Martyna Grydlik 2 , Moritz Brehm 2 , Anna Marzegalli 1 , Francesco Montalenti 1 , Thomas Fromherz 2 , Guenther Bauer 2 , Friedrich Schaffler 2 , Leo Miglio 1
1 L-NESS and Department of Materials Science, University of Milano-Bicocca, Milano Italy, 2 Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Linz Austria

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9:00 PM - GG5.3
Towards a Virtual Laboratory for Grain Boundaries and Dislocations.

Sebastian Echeverri Restrepo 1 , Barend Thijsse 1
1 Materials Science and Engineering, Delft University of Technology, Delft Netherlands

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9:00 PM - GG5.30
In-situ Deformation Analysis of as-quenched Martensite during Large Uniform Deformation.

Junya Inoue 1 , Masato Michiuchi 1 , Shoichi Nambu 1 , Toshihiko Koseki 1
1 Department of Materials Engineering, The University of Tokyo, Tokyo Japan

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9:00 PM - GG5.4
Effect of Obstacle Spacing on the Fracture Resistance of High Strength Alloys.

Srinath Chakravarthy 1 , William Curtin 2
1 Engineering, Brown University, Providence, Rhode Island, United States, 2 Engineering, Brown University, Providence, Rhode Island, United States

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9:00 PM - GG5.6
Compressive Behavior of Small Metallic Glass Pillars from Micrometers to Nanometers.

Xiaolei Wu 1 , Brian Schuster 2 , Yazhou Guo 3 , Kaliat Ramesh 4 , Qiuming Wei 3
1 , Institute of Mechanics, CAS, Beijing, Beijing, China, 2 , US Army Research Lab, Aberdeen Proving Ground, Maryland, United States, 3 Mechanical Engineering, University of North Carolinat at Charlotte, Charlotte, North Carolina, United States, 4 Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland, United States

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9:00 PM - GG5.7
Numerical Simulations of the Nanoindentation and Recovery of a Platinum-based Metallic Glass.

David Henann 1 , Lallit Anand 1
1 Mechanical Engineering, MIT, Cambridge, Massachusetts, United States

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9:00 PM - GG5.8
Relaxation Dynamics in Locally Deformed Crystals of Peanut-Shaped Colloidal Particles.

Sharon Gerbode 1 , Chekesha Liddell 2 , Itai Cohen 1
1 Physics, Cornell University, Ithaca, New York, United States, 2 Materials Science, Cornell University, Ithaca, New York, United States

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9:00 PM - GG5.9
Length-scale and Temperature Dependence of Deformation Kinetics of Gold using Nanoindentation Technique.

Vineet Bhakhri 1 , Robert Klassen 1
1 Mechanical & Materials Engineering, The University of Western Ontario, London, Ontario, Canada

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9:00 PM -
GG5.13 Transferred to GG2.8

2009-12-02   Show All Abstracts

Symposium Organizers

Peter M. Derlet Paul Scherrer Institut
Daniel Weygand Universität Karlsruhe, izbs
Ju Li University of Pennsylvania
Mike D. Uchic Air Force Research Laboratory
Eric Le Bourhis Université de Poitiers
GG6: Atomistic and Dislocation Dynamics Simulation Methods
Session Chairs
Peter Derlet
Ju Li
Wednesday AM, December 02, 2009
Room 300 (Hynes)

9:30 AM - **GG6.1
Studying Mechanical Behavior at the Nanoscale Using Accelerated Molecular Dynamics.

Arthur Voter 1
1 Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States

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10:00 AM - GG6.2
On the Formation of Dislocation Sources and Stability of Dislocation Structures in Small Volumes.

Daniel Weygand 1 , Christian Motz 2 , Jochen Senger 1 , Peter Gumbsch 1 3
1 izbs, University of Karlsruhe (TH), KIT, Karlsruhe Germany, 2 Erich Schmid Institute, Austrian Academy of Science, Leoben Austria, 3 IWM, Fraunhofer, Freiburg Germany

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10:15 AM - GG6.3
Discrete Dynamical Simulation of Interacting Dislocations in Elastically-anisotropic Crystal Grains: Modelling Plasticity of Iron at High Temperatures.

Steve Fitzgerald 1 3 , Sylvie Aubry 2 , Wei Cai 2 , Zhongwen Yao 3 , Sergei Dudarev 1
1 Theory and Modelling, EURATOM/UKAEA Fusion Association, Abingdon, Oxfordshire, United Kingdom, 3 Materials, University of Oxford, Oxford, Oxfordshire, United Kingdom, 2 Mechanical Engineering, Stanford University, Stanford, California, United States

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10:30 AM - GG6.4
Application of a 3D-Continuum Theory of Dislocations to Problems of Constrained Plastic Flow.

Stefan Sandfeld 1 3 , Thomas Hochrainer 1 2 , Michael Zaiser 3 , Peter Gumbsch 1 2
1 izbs, University Karlsruhe (TH), Karlsruhe Germany, 3 Institute for Materials and Processes, University Edinburgh, Edinburgh Germany, 2 IWM, Fraunhofer Institute for Mechanics of Materials, Freiburg Germany

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10:45 AM - GG6.5
Modelling of the Non-Schmid Behavior in BCC Metals in a Three-dimensional Discrete Dislocation Dynamics Framework.

Kinshuk Srivastava 1 , Daniel Weygand 1 , Peter Gumbsch 1 2
1 Institut fuer Zuverlaessigkeit von Bauteilen und Systemen, University of Karlsruhe, Karlsruhe, Baden-Wuerttemberg, Germany, 2 IWM, Fraunhofer Institut fuer Werkstoffmechanik, Freiburg, Baden-Wuerttemberg, Germany

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11:00 AM - *
Break

11:30 AM - **GG6.6
Nanomechanics of Plasticity in Ultra-Strength Materials.

Ting Zhu 1
1 Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States

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12:00 PM - GG6.7
Temperature and Shape Dependence of Dislocation Nucleation.

Seunghwa Ryu 1 , Wei Cai 2
1 Physics, Stanford University, Stanford, California, United States, 2 Mechanical Engineering, Stanford University, Stanford, California, United States

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12:15 PM - GG6.8
On-the-fly Analysis of Large-scale Molecular Dynamics Simulations: Calculating Lattice Rotation and Dislocation Density Tensors from Atomistic Data.

Alexander Hartmaier 1 , Jun Hua 1 , Christoph Begau 1
1 ICAMS, Ruhr-University Bochum, Bochum, NRW, Germany

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12:30 PM - GG6.9
Prediction of Dislocation Nucleation in Nanoindentation Using an Atomic-Scale Stability Criterion.

Terry Delph 1 , Jonathan Zimmerman 2
1 Dept. of Mechanical Engineering, Lehigh University, Bethlehem, Pennsylvania, United States, 2 Mechanics of Materials Department, Sandia National Laboratory, Livermore, California, United States

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12:45 PM - GG6.10
Rate Processes in 3D Dislocation Ensembles.

Mamdouh Mohamed 1 , Jie Deng 1 , Anter El-Azab 1
1 Dept. of Scientific Computing, Florida State University, Tallahassee, Florida, United States

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GG7: Microstructural Dominated Plasticity: Experiment &amp; Simulation
Session Chairs
Javier Gil Sevillano
Mike Uchic
Wednesday PM, December 02, 2009
Room 300 (Hynes)

2:30 PM - **GG7.1
Plasticity in Nanocrystalline Metals: A Knowledge Base Obtained from Experiments and Atomistic Simulations.

Helena Van Swygenhoven 1 , Ch. Brandl 1 , A. Elsener 1 , P. Derlet 1 , S. Van Petegem 1
1 NUM, PSI, Villigen Switzerland

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3:00 PM - GG7.2
Getting Rid of all the Atoms - Observing Dislocation Lines in Atomistic Simulations.

Alexander Stukowski 1 , Karsten Albe 1
1 Institute of Materials Science, University Darmstadt, Darmstadt Germany

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3:15 PM - GG7.3
Size Effect in the Shear-Coupled Migration of Grain Boundaries Pinned by Triple Junctions.

Javier Gil Sevillano 1 , Aitor Luque 1 , Javier Aldazabal 1 , Jose Martinez-Esnaola 1
1 Materials, CEIT and TECNUN, University of Navarra, San Sebastian Spain

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3:30 PM - GG7.4
Influence of Microstructure on Thermo-mechanical Fatigue of Al Films on Substrates.

Walther Heinz 1 , Gerhard Dehm 1 2
1 , Erich Schmid Institut of Materials Science, Leoben Austria, 2 Department Materials Physics, Montanuniversity Leoben, Leoben Austria

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3:45 PM - *
break

4:15 PM - GG7.5
Nanoscale Cu/Ni Multilayer Micropillars: Cyclic and Strain Rate Effects.

John Carpenter 1 , Michael Uchic 2 , Amit Misra 3 , Peter Anderson 1
1 , Ohio State University, Columbus, Ohio, United States, 2 , USAF AFMC AFRL/RXLMD, Dayton, Ohio, United States, 3 , Los Alamos National Laboratory, Los Alamos, New Mexico, United States

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Plastic Flow Stability of Nanotwinned Cu Foils.

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