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

  • Berry, J.W., Ganti, A., Goss, K., Mayer, C., Onunkwo, U., Phillips, C., Saia, J., Shead, T., & Shead, T. (2021). Adapting Secure MultiParty Computation to Support Machine Learning in Radio Frequency Sensor Networks. https://doi.org/10.2172/1842271 Publication ID: 76498
  • Owen, S. (2021). Working with CUBIT’s Machine Learning Tools [Conference Presenation]. https://doi.org/10.2172/1892152 Publication ID: 76244
  • Shead, T., Gastelum, Z., Rushdi, A.A., & Rushdi, A.A. (2021). Synthetic Images for Machine Learning [Presentation]. https://www.osti.gov/biblio/1881667 Publication ID: 79700
  • Gastelum, Z., Shead, T., Rushdi, A.A., & Rushdi, A.A. (2021). A Safeguards-Informed Image Dataset for Computer Vision R&D [Conference Presenation]. https://doi.org/10.2172/1888462 Publication ID: 79779
  • Owen, S. (2021). Machine Learning Applications for Defeaturing and Model Preparation [Conference Presenation]. https://doi.org/10.2172/1888397 Publication ID: 79501
  • Gastelum, Z., Shead, T., Rushdi, A.A., & Rushdi, A.A. (2021). A Large Safeguards-Informed Hybrid Imagery Dataset for Computer Vision Research and Development [Conference Paper]. https://www.osti.gov/biblio/1889061 Publication ID: 79550
  • Rutkowski, J., Gastelum, Z., Shead, T., Rushdi, A.A., Bolles, J., Mattes, A., & Mattes, A. (2021). Safeguards-Informed Hybrid Imagery Dataset [Poster] [Conference Poster]. https://doi.org/10.2172/1884463 Publication ID: 78148
  • Gastelum, Z., Shead, T., Higgins, M., & Higgins, M. (2020). Synthetic Training Images for Real-World Object Detection [Conference Poster]. https://www.osti.gov/biblio/1807426 Publication ID: 73778
  • Gastelum, Z., Shead, T., & Shead, T. (2020). Synthetic Training Images for Real-World Object Detection [Conference Poster]. https://www.osti.gov/biblio/1804625 Publication ID: 73880
  • Gastelum, Z., Shead, T., Higgins, M., & Higgins, M. (2020). The Use of Synthetic 3D Images to Drastically Reduce Real-World Training Data for Object Detection Models [Conference Poster]. https://www.osti.gov/biblio/1766905 Publication ID: 72614
  • Davis IV, W., Shead, T., Kolla, H., Reed, K., Kegelmeyer, W., Popoola, G., & Popoola, G. (2020). In-Situ Machine Learning for Intelligent Data Capture on Exascale Platforms [Presentation]. https://www.osti.gov/biblio/1762271 Publication ID: 70797
  • Popoola, G., Davis, W., Shead, T., Graves, C., & Graves, C. (2020). Using Unsupervised Anomaly Detection for Data Reduction in Temporal and Spatial Data [Conference Poster]. https://www.osti.gov/biblio/1763159 Publication ID: 70854
  • Wendt, J.D., Kegelmeyer, W., Pinar, A., Shead, T., Saavedra, G., Safta, C., Bertino, J., & Bertino, J. (2019). Data Analytics are Powerful — Handle with Care [Conference Poster]. https://www.osti.gov/biblio/1642746 Publication ID: 65481
  • Shead, T., Kolla, H., Konduri, A., Papoola, G., Davis, W., Dunlavy, D., Reed, K., & Reed, K. (2019). A Framework for In-Situ Anomaly Detection in HPC Environments [Conference Poster]. https://www.osti.gov/biblio/1642180 Publication ID: 65194
  • Davis, W., Shead, T., Kolla, H., Kegelmeyer, W., Popoola, G., Reed, K., & Reed, K. (2019). In-Situ Machine Learning for Intelligent Data Capture on Exascale Platforms [Presentation]. https://www.osti.gov/biblio/1645860 Publication ID: 64607
  • Owen, S., Ernst, C., & Ernst, C. (2019). Advancements in Overlay-Grid-Based Hex Meshing from Noisy 3D Image Data [Conference Poster]. https://www.osti.gov/biblio/1641488 Publication ID: 70269
  • Owen, S. (2019). CAD Defeaturing with Machine Learning (Powerpoint Presentation) [Conference Poster]. https://www.osti.gov/biblio/1640976 Publication ID: 69437
  • Gastelum, Z., Goldblum, B., Shead, T., Stewart, C., Miller, K., Luttman, A., & Luttman, A. (2019). Integrating Physical and Informational Sensing to Support Nonproliferation Assessments of Nuclear-Related Facilities [Conference Poster]. https://www.osti.gov/biblio/1641009 Publication ID: 69494
  • Shead, T., Dunlavy, D., Kolla, H., Konduri, A., Popoola, G., Davis, W., Kegelmeyer, W., Reed, K., Ling, J., & Ling, J. (2019). A Framework for In-Situ Anomaly Detection in HPC Environments [Conference Poster]. https://www.osti.gov/biblio/1640853 Publication ID: 69270
  • Owen, S., Shead, T., Martin, S., & Martin, S. (2019). CAD Defeaturing using Machine Learning [Conference Poster]. https://www.osti.gov/biblio/1640901 Publication ID: 69320
  • Berry, J.W., Phillips, C., Plimpton, S.J., Porter, A., Shead, T., & Shead, T. (2019). Maintaining Connected Components for Infinite Graph Streams [Conference Poster]. https://doi.org/10.1145/2501221.2501234 Publication ID: 67646
  • Gastelum, Z., Luttman, A., Goldblum, B., Shead, T., Stewart, C., & Stewart, C. (2019). Interdependent Networks: Multimodal indirect sensing and analysis for nuclear nonproliferation detection [Conference Poster]. https://www.osti.gov/biblio/1639592 Publication ID: 67798
  • Owen, S., Siefert, C., Vineyard, C., Oldfield, R., & Oldfield, R. (2019). SNL Data and Visualization: ML Projects at Sandia [Conference Poster]. https://www.osti.gov/biblio/1591994 Publication ID: 64241
  • Owen, S., Shead, T., Martin, S., & Martin, S. (2019). Machine Learning-based CAD Defeaturing for Tetrahedral Mesh Generation [Conference Poster]. https://www.osti.gov/biblio/1596411 Publication ID: 64504
  • Gastelum, Z., Thomas, M., Shead, T., & Shead, T. (2018). Semantic Graphs for Safeguards Data Integration, Pattern Matching, and Event Classification [Conference Poster]. https://www.osti.gov/biblio/1884099 Publication ID: 59476
  • Owen, S., Shead, T., Martin, S., & Martin, S. (2018). Defeaturing using Machine Learning [Conference Poster]. https://www.osti.gov/biblio/1577044 Publication ID: 63583
  • Thomas, M., Gastelum, Z., Shead, T., & Shead, T. (2018). Semantic Graphis for Safeguards Data Integration Pattern Matching and Event Classification [Conference Poster]. https://www.osti.gov/biblio/1582535 Publication ID: 63929
  • Gastelum, Z., Shead, T., & Shead, T. (2018). Using Deep Learning to Classify Open Source Imagery [Presentation]. https://www.osti.gov/biblio/1575157 Publication ID: 63522
  • Owen, S., Shead, T., Martin, S., & Martin, S. (2018). Automated Simulation Model Preparation with Machine Learning [Conference Poster]. https://www.osti.gov/biblio/1806719 Publication ID: 63304
  • Lim, H., Abdeljawad, F., Owen, S., Battaile, C., Foulk, J.W., & Foulk, J.W. (2018). Interface-conformal Hex Meshing Techniques and Mesh Sensitivities in Crystal Plasticity Finite Element Simulations [Conference Poster]. https://www.osti.gov/biblio/1571557 Publication ID: 63183
  • Shead, T. (2018). Teaching a Machine to Learn [Conference Poster]. https://www.osti.gov/biblio/1529846 Publication ID: 62757
  • Davis, W., Dunlavy, D., Kegelmeyer, W., Kolla, H., Konduri, A., Shead, T., Reed, K., & Reed, K. (2018). In-Situ Machine Learning for Intelligent Data Capture in HPC Simulations [Conference Poster]. https://www.osti.gov/biblio/1524824 Publication ID: 62334
  • Konduri, A., Kolla, H., Ling, J., Kegelmeyer, W., Dunlavy, D., Shead, T., Davis, W., & Davis, W. (2018). EVENT DETECTION IN MULTI-VARIATE SCIENTIFIC SIMULATIONS USING FEATURE ANOMALY METRICS [Conference Poster]. https://www.osti.gov/biblio/1499084 Publication ID: 60969
  • Battaile, C., Moore, N.W., Owen, S., & Owen, S. (2017). Predicting Micro-Scale Deformations During High-Rate Loading of Additively Manufactured Materials [Presentation]. https://www.osti.gov/biblio/1487000 Publication ID: 54631
  • Owen, S., Foulk, J.W., Reedlunn, B., Ernst, C., Alleman, C., Lim, H., & Lim, H. (2017). Geometry and Mesh Generation for Representative Volume Elements in Computational Materials Modeling [Conference Poster]. https://www.osti.gov/biblio/1509954 Publication ID: 53408
  • Owen, S., Owen, S., Brown, J., Long, K., Lim, H., Ernst, C., & Ernst, C. (2017). Hex Mesh Generation for Computational Materials Modeling [Conference Poster]. https://www.osti.gov/biblio/1509955 Publication ID: 53409
  • Shead, T. (2017). Using Feature Importance Metrics to Detect Events of Interest in Scientific Computing Applications [Conference Poster]. https://www.osti.gov/biblio/1509655 Publication ID: 53330
  • Shead, T., Konduri, A., Kolla, H., Dunlavy, D., Kegelmeyer, W., & Kegelmeyer, W. (2017). Embedding Python for In-Situ Analysis [Conference Poster]. https://www.osti.gov/biblio/1467787 Publication ID: 58175
  • Battaile, C., Moore, N.W., Owen, S., & Owen, S. (2017). Direct Numerical Simulations of Microstructure Effects during High-Rate Loading of Thermally Sprayed Ta [Conference Poster]. https://www.osti.gov/biblio/1462529 Publication ID: 57410
  • Shead, T., Gastelum, Z., Shead, T., & Shead, T. (2017). Preliminary Application of Neural Networks to Support Assessment of Ground-Based Imagery for International Safeguards Analysis [Conference Poster]. https://www.osti.gov/biblio/1462506 Publication ID: 57418
  • Lim, H., Abdeljawad, F., Owen, S., Foulk, J.W., Tucker, G., Gruber, J., & Gruber, J. (2017). Developing Physically-based Three Dimensional Polycrystalline Microstructures [Conference Poster]. https://www.osti.gov/biblio/1506923 Publication ID: 57314
  • Owen, S., Brown, J., Ernst, C., Lim, H., Long, K., & Long, K. (2017). Hexahedral Mesh Generation for 3D Computational Materials Modeling [Conference Poster]. https://www.osti.gov/biblio/1574184 Publication ID: 56623
  • Owen, S. (2017). NNSA/CEA Mesh Generation Collaboration [Conference Poster]. https://www.osti.gov/biblio/1457921 Publication ID: 56191
  • Gastelum, Z., Shead, T., Shead, T., & Shead, T. (2017). Preliminary Application of Neural Networks to Support Assessment of Ground-Based Imagery for International Safeguards Analysis [Conference Poster]. https://www.osti.gov/biblio/1457930 Publication ID: 56216
  • Owen, S., Shih, R.M., Ernst, C., & Ernst, C. (2017). A template-based approach for parallel hexahedral two-refinement. CAD Computer Aided Design, 85, pp. 34-52. https://doi.org/10.1016/j.cad.2016.09.005 Publication ID: 48668
  • Owen, S. (2017). Advances in Grid-Based All-Hex Mesh Generation for High Performance Computing [Conference Poster]. https://www.osti.gov/biblio/1456532 Publication ID: 55802
  • Ling, J., Kegelmeyer, W., Konduri, A., Kolla, H., Reed, K., Shead, T., Davis, W., & Davis, W. (2017). Using Feature Importance Metrics to Detect Events of Interest in Scientific Computing Applications [Conference Poster]. https://doi.org/10.1109/LDAV.2017.8231851 Publication ID: 54840
  • Le Goff, N., Ledoux, F., Owen, S., & Owen, S. (2017). Volume preservation improvement for interface reconstruction hexahedral methods [Conference Poster]. Procedia Engineering. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040007144&origin=inward Publication ID: 57223
  • Owen, S., Parks, B., & Parks, B. (2016). Parallel Hexahedral Mesh Generation for White House Geometry with SCULPT [Conference Poster]. https://www.osti.gov/biblio/1395811 Publication ID: 52510
  • Owen, S. (2016). Adaptive Grid-based Hex Meshing for High Performance Computing [Conference Poster]. https://www.osti.gov/biblio/1394103 Publication ID: 52304
  • Owen, S. (2016). Advances in Mesh Generation for Crystal Plasticity Modeling [Conference Poster]. https://www.osti.gov/biblio/1394104 Publication ID: 52305
  • Owen, S. (2016). Generating Topologically Optimized Cellular Structures for Additive Manufacturing [Conference Poster]. https://www.osti.gov/biblio/1394105 Publication ID: 52306
  • Owen, S. (2016). An Introduction to Automatic Mesh Generation Algorithms – Part I [Conference Poster]. https://www.osti.gov/biblio/1394106 Publication ID: 52307
  • Owen, S. (2016). An Introduction to Automatic Mesh Generation Algorithms – Part II [Conference Poster]. https://www.osti.gov/biblio/1394107 Publication ID: 52308
  • Gastelum, Z., Thomas, M., Shead, T., & Shead, T. (2016). Semantic Graphs for Pattern Detection in Sensor Data from Monitoring Regimes [Conference Poster]. https://www.osti.gov/biblio/1373214 Publication ID: 51352
  • Owen, S. (2016). Sculpt: Parallel Grid-Based Hex Meshing from Volume Fractions [Conference Poster]. https://www.osti.gov/biblio/1372193 Publication ID: 51114
  • Gastelum, Z., Thomas, M., Shead, T., & Shead, T. (2016). SEMANTIC GRAPHS FOR PATTERN DETECTION IN SENSOR DATA FROM MONITORING REGIMES [Conference Poster]. https://www.osti.gov/biblio/1366865 Publication ID: 50711
  • Blacker, T., Owen, S., Staten, M., Quadros, W., Hanks, B., Clark, B., Meyers, R., Ernst, C., Merkley, K., Morris, R., McBride, C., Stimpson, C., Plooster, M., Showman, S., & Showman, S. (2016). CUBIT Geometry and Mesh Generation Toolkit 15.2 User Documentation. https://doi.org/10.2172/1457612 Publication ID: 51146
  • Lim, H., Abdeljawad, F., Owen, S., Hanks, B., Foulk, J.W., Battaile, C., & Battaile, C. (2016). Incorporating physically-based microstructures in materials modeling: Bridging phase field and crystal plasticity frameworks. Modelling and Simulation in Materials Science and Engineering, 24(4). https://doi.org/10.1088/0965-0393/24/4/045016 Publication ID: 46316
  • Blacker, T., Owen, S., Staten, M., Quadros, W., Hanks, B., Clark, B., Meyers, R., Ernst, C., Merkley, K., Morris, R., McBride, C., Stimpson, C., Plooster, M., Showman, S., & Showman, S. (2016). CUBIT geometry and mesh generation toolkit 15.1 user documentation. https://doi.org/10.2172/1430472 Publication ID: 48564
  • Lim, H., Abdeljawad, F., Battaile, C., Owen, S., & Owen, S. (2016). Developing Physically-based Three Dimensional Microstructures: Bridging Phase Field and Crystal Plasticity Models [Conference Poster]. https://www.osti.gov/biblio/1344827 Publication ID: 48355
  • Chance, F., Aimone, J.B., Carlson, K.D., Davis, W., Shead, T., Vineyard, C., & Vineyard, C. (2016). Sandia MICrONS Phase 1 kickoff slides [Presentation]. https://www.osti.gov/biblio/1514321 Publication ID: 46753
  • Robbins, J., Owen, S., Clark, B., Voth, T., & Voth, T. (2015). Topology Optimization of Cellular Structure. https://www.osti.gov/biblio/1427198 Publication ID: 42125
  • Blacker, T., Robbins, J., Owen, S., Aguilo Valentin, M., Clark, B., Voth, T., & Voth, T. (2015). PLATO Platinum Topology Optimization [Presentation]. https://www.osti.gov/biblio/1332862 Publication ID: 41610
  • Owen, S., Shih, R., & Shih, R. (2015). A Template-Based Approach for Parallel Hexahedral Two-Refinement [Conference Poster]. https://www.osti.gov/biblio/1336294 Publication ID: 46015
  • Lim, H., Battaile, C., Carroll, J.D., Brown, J.L., Buchheit, T., Abdeljawad, F., Owen, S., Boyce, B., Weinberger, C., & Weinberger, C. (2015). Developing a physically-based tantalum strength model: Integrating fundamental concepts with macro scale models [Conference Poster]. https://www.osti.gov/biblio/1334068 Publication ID: 46065
  • Lim, H., Abdeljawad, F., Gruber, J., Foulk, J.W., Battaile, C., Owen, S., Hanks, B., & Hanks, B. (2015). 3D microstructure modeling using phase field grain growth model [Presentation]. https://www.osti.gov/biblio/1324238 Publication ID: 45325
  • Rintoul, M., Wilson, A., Valicka, C., Kegelmeyer, W., Shead, T., Czuchlewski, K., Newton, B., & Newton, B. (2015). PANTHER. Trajectory Analysis. https://doi.org/10.2172/1221864 Publication ID: 45650
  • Lim, H., Owen, S., Abdeljawad, F., Hanks, B., Battaile, C., & Battaile, C. (2015). Creating physically-based three-dimensional microstructures: Bridging phase-field and crystal plasticity models. https://doi.org/10.2172/1215797 Publication ID: 45536
  • Staten, M., Owen, S., & Owen, S. (2015). Introduction to Quadrilateral and Hexahedral Mesh Generation [Conference Poster]. https://www.osti.gov/biblio/1325899 Publication ID: 45549
  • Owen, S., Lim, H., & Lim, H. (2015). Hex Meshing for Microstructures [Conference Poster]. https://www.osti.gov/biblio/1328179 Publication ID: 45814
  • Owen, S. (2015). A Template-Based Approach to Parallel Two-Refinement [Conference Poster]. https://doi.org/10.1016/j.proeng.2015.10.120 Publication ID: 45815
  • Owen, S. (2015). Mesh Optimization for Grid-Based Hex Meshes [Conference Poster]. https://www.osti.gov/biblio/1328181 Publication ID: 45816
  • Owen, S. (2015). Parallel Mesh Optimization for Grid-Based Hex Meshes [Conference Poster]. https://www.osti.gov/biblio/1280757 Publication ID: 44752
  • Crossno, P., Shead, T., Hunt, W., Sielicki, M., Lochridge, D., Arrillaga, G., & Arrillaga, G. (2015). Slycat Ensemble Visualization and Analysis [Presentation]. https://www.osti.gov/biblio/1247106 Publication ID: 42886
  • Kegelmeyer, W., Shead, T., Rintoul, M., Wilson, A., & Wilson, A. (2015). Characterizing and Detecting Aircraft Identity and Diversion [Conference Poster]. https://www.osti.gov/biblio/1251131 Publication ID: 43239
  • Battaile, C., Abdeljawad, F., Bishop, J., Boyce, B., Brewer, L., Carroll, J.D., Clark, B.G., Emery, J., Field, R., Foulk, J.W., Lim, H., Madison, J.D., Owen, S., & Owen, S. (2015). Statistical Descriptions of Defect-Mediated Structure-Properties Relationships in Metals [Conference Poster]. https://www.osti.gov/biblio/1244476 Publication ID: 42689
  • Owen, S., Shih, R.M., & Shih, R.M. (2015). A template-based approach for parallel hexahedral two-refinement [Conference Poster]. Procedia Engineering. https://doi.org/10.1016/j.proeng.2015.10.120 Publication ID: 45803
  • Owen, S., Dudley, C., & Dudley, C. (2014). Degenerate Hex Elements [Conference Poster]. https://www.osti.gov/biblio/1315026 Publication ID: 39125
  • Owen, S., Dudley, C., & Dudley, C. (2014). Degenerate Hex Elements [Conference]. https://www.osti.gov/biblio/1146503 Publication ID: 41150
  • Owen, S. (2014). Grid-Based Hex Meshes for Solid Mechanics. Engineering With Computers. https://www.osti.gov/biblio/1140895 Publication ID: 40108
  • Owen, S. (2014). Parallel Algorithms for Overlay Grid [Presentation]. https://www.osti.gov/biblio/1684906 Publication ID: 37220
  • Berry, J.W., Phillips, C., Plimpton, S.J., Shead, T., & Shead, T. (2014). Maintaining Connected Components for Infinite Graph Streams [Presentation]. https://doi.org/10.1145/2501221.2501234 Publication ID: 37009
  • Owen, S. (2013). Cubit Fast-start Tutorial 21. Sculpt [Presentation]. https://www.osti.gov/biblio/1681161 Publication ID: 32006
  • Crossno, P., Shead, T., Hunt, W., Hsieh, M., & Hsieh, M. (2013). Ensemble Analysis of Electrical Circuit Simulations [Presentation]. https://doi.org/10.1007/978-3-662-44900-4_16 Publication ID: 31897
  • Owen, S. (2013). Validation of Grid-Based Hex Meshes With Computational Solid Mechanics [Presentation]. https://doi.org/10.1007/978-3-319-02335-9_3 Publication ID: 36146
  • Shead, T., Dunlavy, D., & Dunlavy, D. (2013). Network and Ensemble Enabled Entity Extraction in Informal Text (NEEEEIT) final report. https://doi.org/10.2172/1115263 Publication ID: 36446
  • Owen, S. (2013). Validation of Grid-Based Hex Meshes With Computational Solid Mechanics [Conference]. https://doi.org/10.1007/978-3-319-02335-9_3 Publication ID: 34910
  • Owen, S. (2013). Towards Exascale All-Hex Mesh Generation from CAD [Conference]. https://www.osti.gov/biblio/1115509 Publication ID: 33915
  • Owen, S. (2013). Sculpt: A new tool for automatic parallel hex meshing [Presentation]. https://www.osti.gov/biblio/1660822 Publication ID: 33064
  • Owen, S. (2013). Automatic All-Hex Mesh Generation Accomplishments and New Challenges [Conference]. https://www.osti.gov/biblio/1063475 Publication ID: 32179
  • Owen, S. (2012). Parallel Smoothing for Grid-Based Methods [Conference]. https://www.osti.gov/biblio/1064081 Publication ID: 29363
  • Pawlowski, R., Phipps, E., Owen, S., Siefert, C., Staten, M., & Staten, M. (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
  • Owen, S., Coffey, T., Salinger, A., & Salinger, A. (2011). A Comparison of 3D Mesh Morphing Methods for CAD Based Shape Optimization [Conference]. https://www.osti.gov/biblio/1120238 Publication ID: 23691
  • Owen, S., Staten, M., & Staten, M. (2011). Parallel Hex Meshing from Volume Fractions [Conference]. https://www.osti.gov/biblio/1140294 Publication ID: 23472
  • Owen, S., Coffey, T., & Coffey, T. (2011). Comparison of Mesh Warping Methods for Shape Optimization [Presentation]. https://www.osti.gov/biblio/1666317 Publication ID: 23077
  • Owen, S., Staten, M., & Staten, M. (2011). Parallel Hex Meshing of Volume Fraction Data [Presentation]. https://www.osti.gov/biblio/1666318 Publication ID: 23078
  • Owen, S., Salinger, A., Coffey, T., & Coffey, T. (2011). A Comparison of Mesh Morphing Methods for 3D Shape Optimization [Conference]. https://www.osti.gov/biblio/1140373 Publication ID: 23410
  • Salinger, A., Owen, S., Pawlowski, R., Phipps, E., Siefert, C., Staten, M., & Staten, M. (2011). Building a PDE with Componenets including shape optimization and embedded UQ [Conference]. https://www.osti.gov/biblio/1109209 Publication ID: 21746
  • Quadros, W., Owen, S., & Owen, S. (2010). Defeaturing CAD models using a geometry-based size field and facet-based reduction operators [Conference]. https://www.osti.gov/biblio/1022196 Publication ID: 19409
  • Owen, S., Staten, M., & Staten, M. (2010). Parallel octree-based hexahedral mesh generation for eulerian to lagrangian conversion. https://doi.org/10.2172/1008123 Publication ID: 19896
  • Owen, S. (2010). An adaptive grid-based all hexahedral meshing algorithm based on 2-refinement [Conference]. https://www.osti.gov/biblio/1022219 Publication ID: 19398
  • Owen, S., Staten, M., & Staten, M. (2010). A comparison of mesh morphing methods for shape optimization [Conference]. https://www.osti.gov/biblio/1022203 Publication ID: 19408
  • Owen, S. (2010). Hex and quad meshing technology : it’s history and development at Sandia National Laboratories [Conference]. https://www.osti.gov/biblio/988565 Publication ID: 17433
  • Owen, S. (2010). Parallel hex meshing using dual contouring in the primal : progress report [Conference]. https://www.osti.gov/biblio/988980 Publication ID: 17438
  • Owen, S. (2010). Unstructured Mesh Generation and Modification vis Direction Sheet Manipulation [Conference]. https://www.osti.gov/biblio/1124330 Publication ID: 17348
  • Kerr, R., Owen, S., Blacker, T., & Blacker, T. (2010). Unconstrained plastering : all-hexahedral mesh generation via advancing front geometry decomposition (2004-2008) [Conference]. https://www.osti.gov/biblio/989981 Publication ID: 17349
  • Owen, S. (2009). Feature Capture for Overlay Hexahedral Mesh Generation [Conference]. https://www.osti.gov/biblio/1142127 Publication ID: 16571
  • Quadros, W., Owen, S., & Owen, S. (2009). Meshing CAD Models Tolerantly Via Reduction Operations [Presentation]. https://www.osti.gov/biblio/1695659 Publication ID: 16497
  • Owen, S. (2009). Automated All Quadrilateral Mesh Adaption through Re?nement and Coarsening [Conference]. https://www.osti.gov/biblio/1142331 Publication ID: 16355
  • Owen, S., Shepherd, J., & Shepherd, J. (2009). Embedding Features in a Cartesian Grid [Conference]. https://www.osti.gov/biblio/1142656 Publication ID: 16356
  • Owen, S. (2009). Mesh Generation for Reactor Modelling and Simulation: Practices Procedures and Uncertainties [Conference]. https://www.osti.gov/biblio/1141901 Publication ID: 16189
  • Pébay, P.P., Stephenson, M.B., Fortier, L.A., Owen, S., Melander, D., & Melander, D. (2008). pCAMAL: An embarrassingly parallel hexahedral mesh generator [Conference]. Proceedings of the 16th International Meshing Roundtable, IMR 2007. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878186158&origin=inward Publication ID: 10260
  • Kerr, R., Owen, S., Blacker, T., & Blacker, T. (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
  • Owen, S. (2008). Meshing and Geometry Research and Development [Presentation]. https://www.osti.gov/biblio/1712866 Publication ID: 13484
  • Owen, S. (2008). Immersive Topology Environment for Meshing (ITEM) 2008 R&D 100 Award Entry Form [Presentation]. https://www.osti.gov/biblio/1713123 Publication ID: 12963
  • Blacker, T., Owen, S., & Owen, S. (2008). Small set of unlimited release meshing examples [Presentation]. https://www.osti.gov/biblio/1712646 Publication ID: 12981
  • Owen, S., Staten, M., Shepherd, J., & Shepherd, J. (2008). NEW STRATEGIES FOR UNSTRUCTURED ALL-HEXAHEDRAL MESH GENERATION [Conference]. https://www.osti.gov/biblio/1145575 Publication ID: 13002
  • Owen, S. (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
  • Owen, S., Clark, B., Melander, D., Shepherd, J., Brewer, M., & Brewer, M. (2007). Immersive Topology Environment for Meshing [Conference]. https://www.osti.gov/biblio/1146840 Publication ID: 11982
  • Owen, S. (2007). Cubit External Review [Conference]. https://www.osti.gov/biblio/1146524 Publication ID: 11882
  • Staten, M., Shepherd, J., Owen, S., & Owen, S. (2007). New Strategies for Unstructured All-Hexahedral Mesh Generation [Conference]. https://www.osti.gov/biblio/1142140 Publication ID: 11507
  • Brewer, M., Owen, S., & Owen, S. (2007). A Framework for Sizing Function Generation in Assembly Meshing [Conference]. https://www.osti.gov/biblio/1142125 Publication ID: 10938
  • Owen, S., Clark, B., Melander, D., Brewer, M., Shepherd, J., & Shepherd, J. (2007). An Immersive Topology Environment for Meshing [Conference]. https://www.osti.gov/biblio/1148066 Publication ID: 10307
  • Owen, S., Blacker, T., & Blacker, T. (2007). ITEM Status: ASC Level 2 Milestone [Presentation]. https://www.osti.gov/biblio/1722788 Publication ID: 10318
  • Owen, S. (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
  • White, D.R., Saigal, S., Owen, S., & Owen, S. (2005). Meshing complexity: Predicting meshing difficulty for single part CAD models. Engineering with Computers, 21(1), pp. 76-90. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=29944432147&origin=inward Publication ID: 2412
  • Owen, S. (2005). CUBIT : geometry and mesh generation toolkit for the nuclear weapons complex [Conference]. https://www.osti.gov/biblio/948325 Publication ID: 4715
  • Staten, M., Owen, S., Blacker, T., & Blacker, T. (2005). Unconstrained paving & plastering: A new idea for all hexahedral mesh generation [Conference]. Proceedings of the 14th International Meshing Roundtable, IMR 2005. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84878940633&origin=inward Publication ID: 4765
  • Owen, S. (2005). Geometry and mesh generation to support the Nation’s Stockpile Stewardship Program [Conference]. https://www.osti.gov/biblio/943896 Publication ID: 4305
  • Owen, S., Shepherd, J., & Shepherd, J. (2004). Geometry and mesh generation to support the nations stockpile stewardship program [Conference]. https://www.osti.gov/biblio/959075 Publication ID: 3379
  • Owen, S. (2004). Conformal refinement of all-hexahedral element meshes based on multiple twist plane insertion [Conference]. https://www.osti.gov/biblio/957273 Publication ID: 2984
  • Owen, S. (2004). Improved many-to-one sweeping [Conference]. https://www.osti.gov/biblio/957271 Publication ID: 2985
  • Owen, S. (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
  • Owen, S., Saigal, S., & Saigal, S. (2001). Formation of pyramid elements for hexahedra to tetrahedra transitions. Computer Methods in Applied Mechanics and Engineering, 190(34), pp. 4505-4518. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0035946918&origin=inward Publication ID: 259
  • Zhulin, V.I., Owen, S., Ostergaard, D.F., & Ostergaard, D.F. (2000). Finite element based electrostatic-structural coupled analysis with automated mesh morphing [Conference]. 2000 International Conference on Modeling and Simulation of Microsystems – MSM 2000. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=6344277225&origin=inward Publication ID: 273
  • Owen, S., Saigal, S., & Saigal, S. (2000). H-Morph: An indirect approach to advancing front hex meshing. International Journal for Numerical Methods in Engineering, 49(1-2), pp. 289-312. Publication ID: 551
Showing 10 of 138 publications.

April 10, 2023