Using machine learning to create rapid stronglink mechanisms

A CAD model

Computer aided design (CAD) to simulation workflows for nuclear deterrence (ND) have shown dramatic performance improvements with ML. This work targets some of the most inefficient, tedious, and error-prone bottlenecks using new ML-based methods. Common mechanisms such as fasteners and springs can now be quickly identified and reduced to simulation-ready proxies, significantly reducing the need for most human interactive geometry and meshing operations.  

Also developed is a new dynamic, in-situ classification tool that can be used as the basis for a common sharable knowledge base, capitalizing on the expertise of experienced engineers within a community of analysts. The time analysts need to prepare shell-based Finite Element Analysis models to simulate critical ND transportation systems was also dramatically impacted using a new multi-agent reinforcement learning algorithm that learns a complex procedure for dimensionally reducing a 3D CAD assembly to a simulation-ready set of interconnected sheet bodies.  

This project led to two Technical Advances and a patent submission, and presentations were made at the Siemens Geometry and Meshing Lecture Series and the 16th and 17th U.S. Congress on Computational Mechanics. This project also won the Best Technical Presentation award at the 2022 Society for Industrial and Applied Mathematics International Meshing Roundtable (IMR), and a published, peer-reviewed paper will be presented at the 2023 IMR in Amsterdam, Netherlands. 

ext: A CAD model
CAD model (left) with multiple fasteners (right), rapidly reduced to simulation-ready state using new ML methods.

Sandia researchers linked to work 

  • Steven J. Owen 
  • Timothy Shead

Sponsored by

Image of LDRD_Icon-01

Associated Publications

Jonathan Berry, Anand Ganti, Kenneth Goss, Carolyn Mayer, Uzoma Onunkwo, Cynthia Phillips, Jared Saia, Timothy Shead, (2021). Adapting Secure MultiParty Computation to Support Machine Learning in Radio Frequency Sensor Networks https://doi.org/10.2172/1842271 Publication ID: 76498

Steven Owen, (2021). Working with CUBIT’s Machine Learning Tools https://doi.org/10.2172/1892152 Publication ID: 76244

Timothy Shead, Zoe Gastelum, Ahmad Rushdi, (2021). Synthetic Images for Machine Learning https://www.osti.gov/servlets/purl/1881667 Publication ID: 79700

Zoe Gastelum, Timothy Shead, Ahmad Rushdi, (2021). A Safeguards-Informed Image Dataset for Computer Vision R&D https://doi.org/10.2172/1888462 Publication ID: 79779

Steven Owen, (2021). Machine Learning Applications for Defeaturing and Model Preparation https://doi.org/10.2172/1888397 Publication ID: 79501

Zoe Gastelum, Timothy Shead, Ahmad Rushdi, (2021). A Large Safeguards-Informed Hybrid Imagery Dataset for Computer Vision Research and Development https://www.osti.gov/servlets/purl/1889061 Publication ID: 79550

Joshua Rutkowski, Zoe Gastelum, Timothy Shead, Ahmad Rushdi, Jason Bolles, Arielle Mattes, (2021). Safeguards-Informed Hybrid Imagery Dataset [Poster] https://doi.org/10.2172/1884463 Publication ID: 78148

Zoe Gastelum, Timothy Shead, Michael Higgins, (2020). Synthetic Training Images for Real-World Object Detection https://www.osti.gov/servlets/purl/1807426 Publication ID: 73778

Zoe Gastelum, Timothy Shead, (2020). Synthetic Training Images for Real-World Object Detection https://www.osti.gov/servlets/purl/1804625 Publication ID: 73880

Zoe Gastelum, Timothy Shead, Michael Higgins, (2020). The Use of Synthetic 3D Images to Drastically Reduce Real-World Training Data for Object Detection Models https://www.osti.gov/servlets/purl/1766905 Publication ID: 72614

Warren Davis IV, Timothy Shead, Hemanth Kolla, Kevin Reed, William Kegelmeyer, Gabriel Popoola, (2020). In-Situ Machine Learning for Intelligent Data Capture on Exascale Platforms https://www.osti.gov/servlets/purl/1762271 Publication ID: 70797

Gabriel Popoola, Warren Davis, Timothy Shead, Corey Graves, (2020). Using Unsupervised Anomaly Detection for Data Reduction in Temporal and Spatial Data https://www.osti.gov/servlets/purl/1763159 Publication ID: 70854

Jeremy Wendt, William Kegelmeyer, Ali Pinar, Timothy Shead, Gary Saavedra, Cosmin Safta, Joseph Bertino, (2019). Data Analytics are Powerful — Handle with Care https://www.osti.gov/servlets/purl/1642746 Publication ID: 65481

Timothy Shead, Hemanth Kolla, Aditya Konduri, Gabriel Papoola, Warren Davis, Daniel Dunlavy, Kevin Reed, (2019). A Framework for In-Situ Anomaly Detection in HPC Environments https://www.osti.gov/servlets/purl/1642180 Publication ID: 65194

Warren Davis, Timothy Shead, Hemanth Kolla, William Kegelmeyer, Gabriel Popoola, Kevin Reed, (2019). In-Situ Machine Learning for Intelligent Data Capture on Exascale Platforms https://www.osti.gov/servlets/purl/1645860 Publication ID: 64607

Steven Owen, Corey Ernst, (2019). Advancements in Overlay-Grid-Based Hex Meshing from Noisy 3D Image Data https://www.osti.gov/servlets/purl/1641488 Publication ID: 70269

Steven Owen, (2019). CAD Defeaturing with Machine Learning (Powerpoint Presentation) https://www.osti.gov/servlets/purl/1640976 Publication ID: 69437

Zoe Gastelum, Bethany Goldblum, Timothy Shead, Christopher Stewart, Kirk Miller, Aaron Luttman, (2019). Integrating Physical and Informational Sensing to Support Nonproliferation Assessments of Nuclear-Related Facilities https://www.osti.gov/servlets/purl/1641009 Publication ID: 69494

Timothy Shead, Daniel Dunlavy, Hemanth Kolla, Aditya Konduri, Gabriel Popoola, Warren Davis, William Kegelmeyer, Kevin Reed, Julia Ling, (2019). A Framework for In-Situ Anomaly Detection in HPC Environments https://www.osti.gov/servlets/purl/1640853 Publication ID: 69270

Steven Owen, Timothy Shead, S. Martin, (2019). CAD Defeaturing using Machine Learning https://www.osti.gov/servlets/purl/1640901 Publication ID: 69320

Jonathan Berry, Cynthia Phillips, Steven Plimpton, Alexandra Porter, Timothy Shead, (2019). Maintaining Connected Components for Infinite Graph Streams https://doi.org/10.1145/2501221.2501234 Publication ID: 67646

Zoe Gastelum, Aaron Luttman, Bethany Goldblum, Timothy Shead, Christopher Stewart, (2019). Interdependent Networks: Multimodal indirect sensing and analysis for nuclear nonproliferation detection https://www.osti.gov/servlets/purl/1639592 Publication ID: 67798

Steven Owen, Christopher Siefert, Craig Vineyard, Ron Oldfield, (2019). SNL Data and Visualization: ML Projects at Sandia https://www.osti.gov/servlets/purl/1591994 Publication ID: 64241

Steven Owen, Timothy Shead, S. Martin, (2019). Machine Learning-based CAD Defeaturing for Tetrahedral Mesh Generation https://www.osti.gov/servlets/purl/1596411 Publication ID: 64504

Zoe Gastelum, Maikael Thomas, Timothy Shead, (2018). Semantic Graphs for Safeguards Data Integration, Pattern Matching, and Event Classification https://www.osti.gov/servlets/purl/1884099 Publication ID: 59476

Steven Owen, Timothy Shead, S. Martin, (2018). Defeaturing using Machine Learning https://www.osti.gov/servlets/purl/1577044 Publication ID: 63583

Maikael Thomas, Zoe Gastelum, Timothy Shead, (2018). Semantic Graphis for Safeguards Data Integration Pattern Matching and Event Classification https://www.osti.gov/servlets/purl/1582535 Publication ID: 63929

Zoe Gastelum, Timothy Shead, (2018). Using Deep Learning to Classify Open Source Imagery https://www.osti.gov/servlets/purl/1575157 Publication ID: 63522

Steven Owen, Timothy Shead, S. Martin, (2018). Automated Simulation Model Preparation with Machine Learning https://www.osti.gov/servlets/purl/1806719 Publication ID: 63304

Hojun Lim, Fadi Abdeljawad, Steven Owen, Corbett Battaile, James Foulk, (2018). Interface-conformal Hex Meshing Techniques and Mesh Sensitivities in Crystal Plasticity Finite Element Simulations https://www.osti.gov/servlets/purl/1571557 Publication ID: 63183

Timothy Shead, (2018). Teaching a Machine to Learn https://www.osti.gov/servlets/purl/1529846 Publication ID: 62757

Warren Davis, Daniel Dunlavy, William Kegelmeyer, Hemanth Kolla, Aditya Konduri, Timothy Shead, Kevin Reed, (2018). In-Situ Machine Learning for Intelligent Data Capture in HPC Simulations https://www.osti.gov/servlets/purl/1524824 Publication ID: 62334

Aditya Konduri, Hemanth Kolla, Julia Ling, William Kegelmeyer, Daniel Dunlavy, Timothy Shead, Warren Davis, (2018). EVENT DETECTION IN MULTI-VARIATE SCIENTIFIC SIMULATIONS USING FEATURE ANOMALY METRICS https://www.osti.gov/servlets/purl/1499084 Publication ID: 60969

Corbett Battaile, N. Moore, Steven Owen, (2017). Predicting Micro-Scale Deformations During High-Rate Loading of Additively Manufactured Materials https://www.osti.gov/servlets/purl/1487000 Publication ID: 54631

Steven Owen, James Foulk, Benjamin Reedlunn, Corey Ernst, Coleman Alleman, Hojun Lim, (2017). Geometry and Mesh Generation for Representative Volume Elements in Computational Materials Modeling https://www.osti.gov/servlets/purl/1509954 Publication ID: 53408

Steven Owen, Steven Owen, Judith Brown, Kevin Long, Hojun Lim, Corey Ernst, (2017). Hex Mesh Generation for Computational Materials Modeling https://www.osti.gov/servlets/purl/1509955 Publication ID: 53409

Timothy Shead, (2017). Using Feature Importance Metrics to Detect Events of Interest in Scientific Computing Applications https://www.osti.gov/servlets/purl/1509655 Publication ID: 53330

Timothy Shead, Aditya Konduri, Hemanth Kolla, Daniel Dunlavy, William Kegelmeyer, (2017). Embedding Python for In-Situ Analysis https://www.osti.gov/servlets/purl/1467787 Publication ID: 58175

Corbett Battaile, N. Moore, Steven Owen, (2017). Direct Numerical Simulations of Microstructure Effects during High-Rate Loading of Thermally Sprayed Ta https://www.osti.gov/servlets/purl/1462529 Publication ID: 57410

Timothy Shead, Zoe Gastelum, Timothy Shead, (2017). Preliminary Application of Neural Networks to Support Assessment of Ground-Based Imagery for International Safeguards Analysis https://www.osti.gov/servlets/purl/1462506 Publication ID: 57418

Hojun Lim, Fadi Abdeljawad, Steven Owen, James Foulk, Garritt Tucker, Jacob Gruber, (2017). Developing Physically-based Three Dimensional Polycrystalline Microstructures https://www.osti.gov/servlets/purl/1506923 Publication ID: 57314

Steven Owen, Judith Brown, Corey Ernst, Hojun Lim, Kevin Long, (2017). Hexahedral Mesh Generation for 3D Computational Materials Modeling https://www.osti.gov/servlets/purl/1574184 Publication ID: 56623

Steven Owen, (2017). NNSA/CEA Mesh Generation Collaboration https://www.osti.gov/servlets/purl/1457921 Publication ID: 56191

Zoe Gastelum, Timothy Shead, Timothy Shead, (2017). Preliminary Application of Neural Networks to Support Assessment of Ground-Based Imagery for International Safeguards Analysis https://www.osti.gov/servlets/purl/1457930 Publication ID: 56216

Steven Owen, Ryan Shih, Corey Ernst, (2017). A template-based approach for parallel hexahedral two-refinement CAD Computer Aided Design https://doi.org/10.1016/j.cad.2016.09.005 Publication ID: 48668

Steven Owen, (2017). Advances in Grid-Based All-Hex Mesh Generation for High Performance Computing https://www.osti.gov/servlets/purl/1456532 Publication ID: 55802

Julia Ling, William Kegelmeyer, Aditya Konduri, Hemanth Kolla, Kevin Reed, Timothy Shead, Warren Davis, (2017). Using Feature Importance Metrics to Detect Events of Interest in Scientific Computing Applications https://doi.org/10.1109/LDAV.2017.8231851 Publication ID: 54840

Nicolas Le Goff, Franck Ledoux, Steven Owen, (2017). Volume preservation improvement for interface reconstruction hexahedral methods Procedia Engineering https://www.osti.gov/servlets/purl/1648675 Publication ID: 57223

Steven Owen, Bradley Parks, (2016). Parallel Hexahedral Mesh Generation for White House Geometry with SCULPT https://www.osti.gov/servlets/purl/1395811 Publication ID: 52510

Steven Owen, (2016). Adaptive Grid-based Hex Meshing for High Performance Computing https://www.osti.gov/servlets/purl/1394103 Publication ID: 52304

Steven Owen, (2016). Advances in Mesh Generation for Crystal Plasticity Modeling https://www.osti.gov/servlets/purl/1394104 Publication ID: 52305

Steven Owen, (2016). Generating Topologically Optimized Cellular Structures for Additive Manufacturing https://www.osti.gov/servlets/purl/1394105 Publication ID: 52306

Steven Owen, (2016). An Introduction to Automatic Mesh Generation Algorithms – Part I https://www.osti.gov/servlets/purl/1394106 Publication ID: 52307

Steven Owen, (2016). An Introduction to Automatic Mesh Generation Algorithms – Part II https://www.osti.gov/servlets/purl/1394107 Publication ID: 52308

Zoe Gastelum, Maikael Thomas, Timothy Shead, (2016). Semantic Graphs for Pattern Detection in Sensor Data from Monitoring Regimes https://www.osti.gov/servlets/purl/1373214 Publication ID: 51352

Steven Owen, (2016). Sculpt: Parallel Grid-Based Hex Meshing from Volume Fractions https://www.osti.gov/servlets/purl/1372193 Publication ID: 51114

Zoe Gastelum, Maikael Thomas, Timothy Shead, (2016). SEMANTIC GRAPHS FOR PATTERN DETECTION IN SENSOR DATA FROM MONITORING REGIMES https://www.osti.gov/servlets/purl/1366865 Publication ID: 50711

Teddy Blacker, Steven Owen, Matthew Staten, William Quadros, Byron Hanks, Brett Clark, Ray Meyers, Corey Ernst, Karl Merkley, Randy Morris, Corey McBride, Clinton Stimpson, Michael Plooster, Sam Showman, (2016). CUBIT Geometry and Mesh Generation Toolkit 15.2 User Documentation https://doi.org/10.2172/1457612 Publication ID: 51146

Hojun Lim, Fadi Abdeljawad, Steven Owen, Byron Hanks, James Foulk, Corbett Battaile, (2016). Incorporating physically-based microstructures in materials modeling: Bridging phase field and crystal plasticity frameworks Modelling and Simulation in Materials Science and Engineering https://doi.org/10.1088/0965-0393/24/4/045016 Publication ID: 46316

Teddy Blacker, Steven Owen, Matthew Staten, William Quadros, Byron Hanks, Brett Clark, Ray Meyers, Corey Ernst, Karl Merkley, Randy Morris, Corey McBride, Clinton Stimpson, Michael Plooster, Sam Showman, (2016). CUBIT geometry and mesh generation toolkit 15.1 user documentation https://doi.org/10.2172/1430472 Publication ID: 48564

Hojun Lim, Fadi Abdeljawad, Corbett Battaile, Steven Owen, (2016). Developing Physically-based Three Dimensional Microstructures: Bridging Phase Field and Crystal Plasticity Models https://www.osti.gov/servlets/purl/1344827 Publication ID: 48355

Frances Chance, James Aimone, Kristofor Carlson, Warren Davis, Timothy Shead, Craig Vineyard, (2016). Sandia MICrONS Phase 1 kickoff slides https://www.osti.gov/servlets/purl/1514321 Publication ID: 46753

Joshua Robbins, Steven Owen, Brett Clark, Thomas Voth, (2015). Topology Optimization of Cellular Structure https://www.osti.gov/servlets/purl/1427198 Publication ID: 42125

Teddy Blacker, Joshua Robbins, Steven Owen, Miguel Aguilo Valentin, Brett Clark, Thomas Voth, (2015). PLATO Platinum Topology Optimization https://www.osti.gov/servlets/purl/1332862 Publication ID: 41610

Steven Owen, Ryan Shih, (2015). A Template-Based Approach for Parallel Hexahedral Two-Refinement https://www.osti.gov/servlets/purl/1336294 Publication ID: 46015

Hojun Lim, Corbett Battaile, Jay Carroll, J. Brown, Thomas Buchheit, Fadi Abdeljawad, Steven Owen, Brad Boyce, Christopher Weinberger, (2015). Developing a physically-based tantalum strength model: Integrating fundamental concepts with macro scale models https://www.osti.gov/servlets/purl/1334068 Publication ID: 46065

Hojun Lim, Fadi Abdeljawad, J. Gruber, James Foulk, Corbett Battaile, Steven Owen, Byron Hanks, (2015). 3D microstructure modeling using phase field grain growth model https://www.osti.gov/servlets/purl/1324238 Publication ID: 45325

Mark Rintoul, Andrew Wilson, Christopher Valicka, William Kegelmeyer, Timothy Shead, Kristina Czuchlewski, Benjamin Newton, (2015). PANTHER. Trajectory Analysis https://doi.org/10.2172/1221864 Publication ID: 45650

Hojun Lim, Steven Owen, Fadi Abdeljawad, Byron Hanks, Corbett Battaile, (2015). Creating physically-based three-dimensional microstructures: Bridging phase-field and crystal plasticity models https://doi.org/10.2172/1215797 Publication ID: 45536

Matthew Staten, Steven Owen, (2015). Introduction to Quadrilateral and Hexahedral Mesh Generation https://www.osti.gov/servlets/purl/1325899 Publication ID: 45549

Steven Owen, Hojun Lim, (2015). Hex Meshing for Microstructures https://www.osti.gov/servlets/purl/1328179 Publication ID: 45814

Steven Owen, (2015). A Template-Based Approach to Parallel Two-Refinement https://doi.org/10.1016/j.proeng.2015.10.120 Publication ID: 45815

Steven Owen, (2015). Mesh Optimization for Grid-Based Hex Meshes https://www.osti.gov/servlets/purl/1328181 Publication ID: 45816

Steven Owen, (2015). Parallel Mesh Optimization for Grid-Based Hex Meshes https://www.osti.gov/servlets/purl/1280757 Publication ID: 44752

Patricia Crossno, Timothy Shead, Warren Hunt, Milosz Sielicki, David Lochridge, Gabriel Arrillaga, (2015). Slycat Ensemble Visualization and Analysis https://www.osti.gov/servlets/purl/1247106 Publication ID: 42886

William Kegelmeyer, Timothy Shead, Mark Rintoul, Andrew Wilson, (2015). Characterizing and Detecting Aircraft Identity and Diversion https://www.osti.gov/servlets/purl/1251131 Publication ID: 43239

Corbett Battaile, Fadi Abdeljawad, Joseph Bishop, Brad Boyce, Luke Brewer, Jay Carroll, Blythe Clark, John Emery, Richard Field, James Foulk, Hojun Lim, J. Madison, Steven Owen, (2015). Statistical Descriptions of Defect-Mediated Structure-Properties Relationships in Metals https://www.osti.gov/servlets/purl/1244476 Publication ID: 42689

Steven Owen, Ryan Shih, (2015). A template-based approach for parallel hexahedral two-refinement Procedia Engineering https://doi.org/10.1016/j.proeng.2015.10.120 Publication ID: 45803

Steven Owen, Clifton Dudley, (2014). Degenerate Hex Elements https://www.osti.gov/servlets/purl/1315026 Publication ID: 39125

Steven Owen, Clifton Dudley, (2014). Degenerate Hex Elements https://www.osti.gov/servlets/purl/1146503 Publication ID: 41150

Steven Owen, (2014). Grid-Based Hex Meshes for Solid Mechanics Engineering With Computers https://www.osti.gov/biblio/1140895 Publication ID: 40108

Steven Owen, (2014). Parallel Algorithms for Overlay Grid https://www.osti.gov/servlets/purl/1684906 Publication ID: 37220

Jonathan Berry, Cynthia Phillips, Steven Plimpton, Timothy Shead, (2014). Maintaining Connected Components for Infinite Graph Streams https://doi.org/10.1145/2501221.2501234 Publication ID: 37009

Steven Owen, (2013). Cubit Fast-start Tutorial 21. Sculpt https://www.osti.gov/servlets/purl/1681161 Publication ID: 32006

Patricia Crossno, Timothy Shead, Warren Hunt, Mingyu Hsieh, (2013). Ensemble Analysis of Electrical Circuit Simulations https://doi.org/10.1007/978-3-662-44900-4_16 Publication ID: 31897

Steven Owen, (2013). Validation of Grid-Based Hex Meshes With Computational Solid Mechanics https://doi.org/10.1007/978-3-319-02335-9_3 Publication ID: 36146

Timothy Shead, Daniel Dunlavy, (2013). Network and Ensemble Enabled Entity Extraction in Informal Text (NEEEEIT) final report https://doi.org/10.2172/1115263 Publication ID: 36446

Steven Owen, (2013). Validation of Grid-Based Hex Meshes With Computational Solid Mechanics https://doi.org/10.1007/978-3-319-02335-9_3 Publication ID: 34910

Steven Owen, (2013). Towards Exascale All-Hex Mesh Generation from CAD https://www.osti.gov/servlets/purl/1115509 Publication ID: 33915

Steven Owen, (2013). Sculpt: A new tool for automatic parallel hex meshing https://www.osti.gov/servlets/purl/1660822 Publication ID: 33064

Steven Owen, (2013). Automatic All-Hex Mesh Generation Accomplishments and New Challenges https://www.osti.gov/biblio/1063475 Publication ID: 32179

Steven Owen, (2012). Parallel Smoothing for Grid-Based Methods https://www.osti.gov/biblio/1064081 Publication ID: 29363

Roger Pawlowski, Eric Phipps, Steven Owen, Christopher Siefert, Matthew Staten, (2011). Applying template-based generic programming to the simulation and analysis of partial differential equations Scientific Programming https://www.osti.gov/biblio/1106473 Publication ID: 24586

Steven Owen, Todd Coffey, Andrew Salinger, (2011). A Comparison of 3D Mesh Morphing Methods for CAD Based Shape Optimization https://www.osti.gov/servlets/purl/1120238 Publication ID: 23691

Steven Owen, Matthew Staten, (2011). Parallel Hex Meshing from Volume Fractions https://www.osti.gov/servlets/purl/1140294 Publication ID: 23472

Steven Owen, Todd Coffey, (2011). Comparison of Mesh Warping Methods for Shape Optimization https://www.osti.gov/servlets/purl/1666317 Publication ID: 23077

Steven Owen, Matthew Staten, (2011). Parallel Hex Meshing of Volume Fraction Data https://www.osti.gov/servlets/purl/1666318 Publication ID: 23078

Steven Owen, Andrew Salinger, Todd Coffey, (2011). A Comparison of Mesh Morphing Methods for 3D Shape Optimization https://www.osti.gov/servlets/purl/1140373 Publication ID: 23410

Andrew Salinger, Steven Owen, Roger Pawlowski, Eric Phipps, Christopher Siefert, Matthew Staten, (2011). Building a PDE with Componenets including shape optimization and embedded UQ https://www.osti.gov/servlets/purl/1109209 Publication ID: 21746

William Quadros, Steven Owen, (2010). Defeaturing CAD models using a geometry-based size field and facet-based reduction operators https://www.osti.gov/biblio/1022196 Publication ID: 19409

Steven Owen, Matthew Staten, (2010). Parallel octree-based hexahedral mesh generation for eulerian to lagrangian conversion https://doi.org/10.2172/1008123 Publication ID: 19896

Steven Owen, (2010). An adaptive grid-based all hexahedral meshing algorithm based on 2-refinement https://www.osti.gov/biblio/1022219 Publication ID: 19398

Steven Owen, Matthew Staten, (2010). A comparison of mesh morphing methods for shape optimization https://www.osti.gov/biblio/1022203 Publication ID: 19408

Steven Owen, (2010). Hex and quad meshing technology : it’s history and development at Sandia National Laboratories https://www.osti.gov/biblio/988565 Publication ID: 17433

Steven Owen, (2010). Parallel hex meshing using dual contouring in the primal : progress report https://www.osti.gov/biblio/988980 Publication ID: 17438

Steven Owen, (2010). Unstructured Mesh Generation and Modification vis Direction Sheet Manipulation https://www.osti.gov/servlets/purl/1124330 Publication ID: 17348

Robert Kerr, Steven Owen, Teddy Blacker, (2010). Unconstrained plastering : all-hexahedral mesh generation via advancing front geometry decomposition (2004-2008) https://www.osti.gov/biblio/989981 Publication ID: 17349

Steven Owen, (2009). Feature Capture for Overlay Hexahedral Mesh Generation https://www.osti.gov/servlets/purl/1142127 Publication ID: 16571

William Quadros, Steven Owen, (2009). Meshing CAD Models Tolerantly Via Reduction Operations https://www.osti.gov/servlets/purl/1695659 Publication ID: 16497

Steven Owen, (2009). Automated All Quadrilateral Mesh Adaption through Re?nement and Coarsening https://www.osti.gov/servlets/purl/1142331 Publication ID: 16355

Steven Owen, Jason Shepherd, (2009). Embedding Features in a Cartesian Grid https://www.osti.gov/servlets/purl/1142656 Publication ID: 16356

Steven Owen, (2009). Mesh Generation for Reactor Modelling and Simulation: Practices Procedures and Uncertainties https://www.osti.gov/servlets/purl/1141901 Publication ID: 16189

Philippe Pébay, Michael Stephenson, Leslie Fortier, Steven Owen, Darryl Melander, (2008). pCAMAL: An embarrassingly parallel hexahedral mesh generator Proceedings of the 16th International Meshing Roundtable, IMR 2007 https://www.osti.gov/servlets/purl/1148203 Publication ID: 10260

Robert Kerr, Steven Owen, Teddy Blacker, (2008). Unconstrained Plastering – Hexahedral Mesh Generation via Advancing-Front Geometry Decomposition International Journal For Numerical Methods in Engineering https://www.osti.gov/biblio/1142929 Publication ID: 14446

Steven Owen, (2008). Meshing and Geometry Research and Development https://www.osti.gov/servlets/purl/1712866 Publication ID: 13484

Steven Owen, (2008). Immersive Topology Environment for Meshing (ITEM) 2008 R&D 100 Award Entry Form https://www.osti.gov/servlets/purl/1713123 Publication ID: 12963

Teddy Blacker, Steven Owen, (2008). Small set of unlimited release meshing examples https://www.osti.gov/servlets/purl/1712646 Publication ID: 12981

Steven Owen, Matthew Staten, Jason Shepherd, (2008). NEW STRATEGIES FOR UNSTRUCTURED ALL-HEXAHEDRAL MESH GENERATION https://www.osti.gov/servlets/purl/1145575 Publication ID: 13002

Steven Owen, (2007). Mesh Generation Technology for Nuclear Reactor Simulation; Barriers and Opportunities Elsevier Nuclear Engineering and Design https://www.osti.gov/biblio/1146386 Publication ID: 12118

Steven Owen, Brett Clark, Darryl Melander, Jason Shepherd, Michael Brewer, (2007). Immersive Topology Environment for Meshing https://www.osti.gov/servlets/purl/1146840 Publication ID: 11982

Steven Owen, (2007). Cubit External Review https://www.osti.gov/servlets/purl/1146524 Publication ID: 11882

Matthew Staten, Jason Shepherd, Steven Owen, (2007). New Strategies for Unstructured All-Hexahedral Mesh Generation https://www.osti.gov/servlets/purl/1142140 Publication ID: 11507

Michael Brewer, Steven Owen, (2007). A Framework for Sizing Function Generation in Assembly Meshing https://www.osti.gov/servlets/purl/1142125 Publication ID: 10938

Steven Owen, Brett Clark, Darryl Melander, Michael Brewer, Jason Shepherd, (2007). An Immersive Topology Environment for Meshing https://www.osti.gov/servlets/purl/1148066 Publication ID: 10307

Steven Owen, Teddy Blacker, (2007). ITEM Status: ASC Level 2 Milestone https://www.osti.gov/servlets/purl/1722788 Publication ID: 10318

Steven Owen, (2007). Preface to Engineering With Computers Special Edition on Trends in Unstructured Mesh Generation Engineering With Computers https://www.osti.gov/biblio/1147960 Publication ID: 9825

David White, Sunil Saigal, Steven Owen, (2005). Meshing complexity: Predicting meshing difficulty for single part CAD models Engineering with Computers https://www.osti.gov/biblio/1002033 Publication ID: 2412

Steven Owen, (2005). CUBIT : geometry and mesh generation toolkit for the nuclear weapons complex https://www.osti.gov/biblio/948325 Publication ID: 4715

Matthew Staten, Steven Owen, Teddy Blacker, (2005). Unconstrained paving & plastering: A new idea for all hexahedral mesh generation Proceedings of the 14th International Meshing Roundtable, IMR 2005 https://www.osti.gov/biblio/948255 Publication ID: 4765

Steven Owen, (2005). Geometry and mesh generation to support the Nation’s Stockpile Stewardship Program https://www.osti.gov/biblio/943896 Publication ID: 4305

Steven Owen, Jason Shepherd, (2004). Geometry and mesh generation to support the nations stockpile stewardship program https://www.osti.gov/biblio/959075 Publication ID: 3379

Steven Owen, (2004). Conformal refinement of all-hexahedral element meshes based on multiple twist plane insertion https://www.osti.gov/biblio/957273 Publication ID: 2984

Steven Owen, (2004). Improved many-to-one sweeping https://www.osti.gov/biblio/957271 Publication ID: 2985

Steven Owen, (2003). CCSWEEP : automatic decomposition of multi-sweep volumes Proposed for presentation at the US National Congress on Computation Mechanics / Inter. Jour. of Num. Math. in Eng. held July 28-30, 2003 in Albuquerque, NM. https://www.osti.gov/biblio/923855 Publication ID: 2108

Steven Owen, Sunil Saigal, (2001). Formation of pyramid elements for hexahedra to tetrahedra transitions Computer Methods in Applied Mechanics and Engineering https://www.osti.gov/servlets/purl/751546 Publication ID: 259

V. Zhulin, Steven Owen, D. Ostergaard, (2000). Finite element based electrostatic-structural coupled analysis with automated mesh morphing 2000 International Conference on Modeling and Simulation of Microsystems – MSM 2000 https://www.osti.gov/servlets/purl/752164 Publication ID: 273

Steven Owen, Sunil Saigal, (2000). H-Morph: An indirect approach to advancing front hex meshing International Journal for Numerical Methods in Engineering

Showing Results. Show More Publications

Keywords:


April 10, 2023