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Publications

In Preparation

Published

  1. Bergan, A. C. “New Developments in the CompDam Fiber Kinking Model for the Interaction of Kinking and Splitting Cracks with Application to Open Hole Compression Specimens” SciTech 2021, Nashville, TN, (virtual) 2021.

  2. Long, Y., Rique, O., Fernandez, J. M., Bergan, A. C., and Yu, W. “Multiscale Simulation of Deployable Composite Structures” SciTech 2021, Nashville, TN, (virtual) 2021.

  3. Rique, O., Tian, S., Fernandez, J. M., Bergan, A. C., and Yu, W. “Thermoviscoelastic Modelling of Thin-Ply High Strain Composites by Means of Multiscale Beam Models” SciTech 2021, Nashville, TN, (virtual) 2021.

  4. Zhang, L., Fernandez, J. M., Bergan, A. C., and Yu, W. “Variational Asymptotic Homogenization of Finitely Deformed Viscoelastic-Viscoplastic Composites” SciTech 2021, Nashville, TN, (virtual) 2021.

  5. Rivera, A. X., Venkataraman, S., Kim, H., Pineda, E., and Bergan, A. C. “Characterization and Modeling of Cell Wall Imperfections in Aluminum Honeycomb Cores Using X-Ray CT Imaging” SciTech 2021, Nashville, TN, (virtual) 2021.

  6. Bergan, A. C., Murphy, S. J., and Miles, L. F. “Analysis of Open Hole Compression Specimens Using the CompDam Continuum Damage Mechanics Model” NASA/TM-2020-5009618, Hampton, VA, 2020.

  7. Bergan, A. C. “An Automated Meshing Framework for Progressive Damage Analysis of Fabrics Using CompDam” presented at the 35th American Society for Composites Technical Conference, Jersey City, NJ, (virtual) 2020.

  8. Larson, R., Bergan, A. C., Leone Jr., F. A., and Kravchenko, O. G. “Understanding Variability in Mechanical Behavior of Adhesively Bonded Sandwich Joints due to Stochastic Material Damage” presented at the 35th American Society for Composites Technical Conference, Jersey City, NJ, (virtual) 2020.

  9. Bergan, A. C., Herráez, M., Lopes, C. S., and González, C. “A constitutive model for fiber kinking: Formulation, finite element implementation, and verification,” Composites Part A: Applied Science and Manufacturing, vol. 129, 2020. link.

  10. Herráez, M., Bergan, A. C., Lopes, C. S., and González, C. “Computational micromechanics model for the analysis of fiber kinking in unidirectional fiber-reinforced polymers,” Mechanics of Materials, vol. 142, 2020. link.

  11. Bergan, A. C., Leone Jr., F. A., Boyd, S., Hyder, I., and Schaefer, J. “Computational Considerations in Scaling the Application of Progressive Damage Analysis Methods from Coupons to Sub-Components” presented at the 34th American Society for Composites Technical Conference, Atlanta, GA, 2019. link.

  12. Stapleton, S. E., Stier, B., Jones, S., Bergan, A. C., Kaleel, I., Petrolo, M., Carrera, E., and Bednarcyk, B. A. “A critical assessment of design tools for stress analysis of adhesively bonded double lap joints,” Mechanics of Advanced Materials and Structures, 2019, pp. 1-21. link.

  13. Simon, M. A., Carpenter, L., Hrinda, G., Bergan, A. C., Samareh, J., and Mitrou, A. “Application of Composite Materials to Reduce Mass of Internal and External Exploration Habitat Structures” presented at the 49th International Conference on Environmental Systems, Boston, MA, 2019.

  14. Stapleton, S. E., Stier, B., Jones, S., Bergan, A. C., Sleight, D. W., Bednarcyk, B. A., Zahn, A., Farrokh, B., and Segal, K. N. “Comparison of Design Tools for Stress Analysis of Adhesively Bonded Joints” , NASA/TM-2019-220210, Cleveland, OH, 2019. link.

  15. Bergan, A. C. “Computational Performance of Progressive Damage Analysis of Composite Laminates using Abaqus/Explicit with 16 to 512 CPU Cores” NASA/TM-2019-220251, Hampton, VA, 2019. link.

  16. Bergan, A. C. “A Three-Dimensional Mesoscale Model for In-Plane and Out-of-Plane Fiber Kinking” presented at the 60th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference (SciTech), San Diego, CA, 2019. link.

  17. Stapleton, S. E., Stier, B., Jones, S., Bergan, A. C., Sleight, D. W., Bednarcyk, B. A., Zahn, A., Farrokh, B., and Segal, K. N. “Comparison of Design Tools for Stress Analysis of Adhesively Bonded Joints” presented at the 60th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference (SciTech), San Diego, CA, 2019. link.

  18. Herráez, M., Bergan, A. C., Lopes, C. S., and González, C. “Modeling Fiber Kinking at the Microscale and Mesoscale” NASA/TP–2018–220105, Hampton, VA, 2018. link.

  19. Bergan, A. C. and Jackson, W. C. “Validation of a Mesoscale Fiber Kinking Model through Test and Analysis of Double Edge Notch Compression Specimens” presented at the 33rd American Society for Composites Technical Conference, Seattle, WA, 2018.

  20. Hyder, I., Leone, F. A., Justusson, B. P., Schaefer, J. D., Bergan, A. C., and Wanthal, S. “Implementation of a Matrix Crack Spacing Parameter in a Continuum Damage Mechanics Finite Element Model” presented at the 33rd American Society for Composites Technical Conference, Seattle, WA, 2018.

  21. Bergan, A. C., Herráez, M., González, C., and Lopes, C. S., “Development of a Mesoscale Finite Element Constitutive Model for Fiber Kinking,” presented at the 59th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Kissimmee, FL, 2018.

  22. Bergan, A. C. and Garcea, S. C. “In Situ Observations of Longitudinal Compression Damage in Carbon-Epoxy Cross Ply Laminates Using Synchrotron Radiation Computed Tomography,” presented at the 32nd American Society for Composites Technical Conference, West Lafayette, IN, 2017.

  23. Herráez, M., Bergan, A. C., Lopes, C. S., and González, C. "Multiscale Fiber Kinking: Computational Micromechanics and a Mesoscale CDM Model," presented at the ECCOMAS 2017 conference, Eindhoven, Netherlands, 2017.

  24. Bergan, A. C. "Developing Predictive Progressive Damage Analysis Tools for Composite Structures" invited talk, IFAR ECN Structures and Materials Group, 2017.

  25. Bergan, A. C., “A Numerical Study on the Edgewise Compression Strength of Sandwich Structures with Facesheet-Core Disbonds,” presented at the 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Grapevine, TX, 2017.

  26. Bergan, A. C., Dávila, C. G., Leone, F. A., Awerbuch, J., and Tan, T.-M. “A Mode I Cohesive Law Characterization Procedure For Through-Thickness Crack Propagation In Composite Laminates,” Composites Part B, vol. 94, 2016, pp. 338-349.

  27. Fikes, J. C., Jackson, J. R., Richardson, S. W., Thomas, A. D., Mann, T. O., and Miller, S. G. “Composites for Exploration Upper Stage (CEUS)” NASA/TM-2016-219433, Huntsville, AL, 2016.

  28. Bergan, A. C. and Leone, F. A., Jr. “A Continuum Damage Mechanics Model to Predict Kink-Band Propagation Using Deformation Gradient Tensor Decomposition,” presented at the 31st American Society for Composites Technical Conference, Williamsburg, VA, 2016.

  29. Bergan, A. C., “A Numerical Study on the Edgewise Compression Strength of Sandwich Structures with Facesheet-Core Disbonds,” presented at the Structures Loads and Mechanisms Young Professionals Forum, Glenn Research Center, Cleveland, OH, 2016.

  30. Bergan, A. C. and Bakuckas, J. G. Jr."Full-Scale Testing of an Advanced Stitched Efficient Unitized Structural Concept Panel" DOT/FAA/TC-14/25, 2015.

  31. Bergan, A. C., Bakuckas, J. G. Jr., and Korkosz, G. J. "FASTER Fixture Modification: PRSEUS Test," DOT/FAA/TN14/17, 2015.

  32. Bergan, A. C., and Dávila, C. G. “Cohesive Laws for Analyzing Through-Crack Propagation in Cross Ply Laminates,” presented at the 20th International Conference on Composite Materials, Copenhagen, Denmark, 2015.

  33. Bergan, A. C., Dávila, C. G., Leone, F. A., Awerbuch, J., and Tan, T.-M. “An Analysis Methodology to Predict Damage Propagation in Notched Composite Fuselage Structures” presented at the SAMPE Baltimore 2015 Conference, Baltimore, MD, 2015.

  34. “Mode I Cohesive Law Characterization of Through-Crack Propagation in a Multidirectional Laminate” presented at the ASC 29th Technical Conference, San Diego, CA, 2014.

  35. Bergan, A. C., Dávila, C. G., Leone, F. A., Awerbuch, J., Tan, T.-M. “An Efficient Model for Assessment of Damage Containment in a Notched PRSEUS Fuselage Panel Subject to Combined Loads,” presented at the Airworthiness and Sustainment Conference, Baltimore, MD, 2014.

  36. Gould, K., Lovejoy, A.E., Jegley, D., Neal, A.L., Linton, K.A., Bergan, A. C., and Bakuckas, J.G. Jr. “Nonlinear Analysis and Post Test Correlation for a Curved PRSEUS Panel,” presented at the 54th AIAA/ASME/ASCE/AHS/ASC, Structures, Structural Dynamics, and Materials Conference, Boston, MA, 2013.

  37. Bakuckas, J. G. Jr., Bergan, A. C. “Demonstration of PRSEUS concept for fuselage panel applications – An overview,” presented at the 2013 International conference on aeronautical fatigue and structural integrity, Jerusalem, Israel, June 5-7, 2013.

  38. Bergan, A. C., Bakuckas, J. G. Jr., Lovejoy, A. E., Jegley, D. C., Awerbuch, J. and Tan, T.-M. “Assessment of Damage-Containment Features of a Full-Scale PRSEUS Fuselage Panel through Test and Teardown,” presented at the American Society for Composites 27th Annual Technical Conference, Arlington, TX, 2012.

  39. Khanolkar, A., Bergan, A. C., Ozevin, D., Awerbuch J. and Tan, T.-M. “Monitoring Acoustic Emission in a PRSEUS Fuselage Panel under Combined Loading,” presented at the American Society for Composites 27th Annual Technical Conference, Arlington, TX, 2012.

  40. Bergan, A. C., Bakuckas, J. G. Jr., Lovejoy, A. E., Jegley, D. C., Linton, K. A., Neal, A., Korkosz, G. J., Awerbuch, J. and Tan, T.-M. “Full-Scale Test and Analysis Results of a PRSEUS Fuselage Panel to Assess Damage-Containment Features,” presented at the Airworthiness and Sustainment Conference, Baltimore, MD, 2012.

  41. Khanolkar, A., Bergan, A. C., Awerbuch J. and Tan, T.-M. “Detecting and Locating Damage Initiation and Progression During Combined Loading of a Notched Full-Scale PRSEUS Fuselage Panel Through Acoustic Emission,” presented at the Airworthiness and Sustainment Conference, Baltimore, MD, 2012.

  42. Bergan, A. C., Bakuckas, J. G. Jr., Lovejoy, A. E., Jegley, D. C., Linton, K. A., Korkosz, G. J., Awerbuch, J. and Tan, T. M. 2011. “Full-Scale Test and Anaylsis of a PRSEUS Fuselage Panel to Assess Damage-Containment Features,” presented at the 2011 Airworthiness and Sustainment Conference, San Diego, CA, 2011.