Publications¶
Yicong Fu and Graeme J. Kennedy. Quasi-newton corrections for compliance and natural frequency topology optimization problems. Structural and Multidisciplinary Optimization, 66(8):176, Jul 2023. URL: https://doi.org/10.1007/s00158-023-03630-9, doi:10.1007/s00158-023-03630-9.
Adam T. Sidor, Graeme J. Kennedy, and Robert D. Braun. Constitutive model of fiber substrate ablators for conceptual design. Journal of Spacecraft and Rockets, 57(2):300–308, 2020. doi:10.2514/1.A34371.
Adam T. Sidor, Graeme J. Kennedy, and Robert D. Braun. Numerical methodology for the conceptual design of conformal ablative heat shields. Journal of Spacecraft and Rockets, 57(4):753–766, 2020. doi:10.2514/1.A34442.
Timothy R. Brooks, Joaquim R. R. A. Martins, and Graeme J. Kennedy. Aerostructural tradeoffs for tow-steered composite wings. Journal of Aircraft, 57(5):787–799, 2020. doi:10.2514/1.C035699.
Ting Wei Chin, Mark L Leader, and Graeme J Kennedy. A scalable framework for large-scale 3d multimaterial topology optimization with octree-based mesh adaptation. Advances in Engineering Software, 2019. doi:https://doi.org/10.1016/j.advengsoft.2019.05.004.
Timothy R. Brooks, Joaquim R. R. A. Martins, and Graeme J. Kennedy. High-fidelity aerostructural optimization of tow-steered composite wings. Journal of Fluids and Structures, 88:122–147, 2019. doi:10.1016/j.jfluidstructs.2019.04.005.
Jan Kiviaho and Graeme J. Kennedy. Efficient and robust load and displacement transfer scheme using weighted least-squares. AIAA Journal, 2019. doi:10.2514/1.J057318.
Kevin E. Jacobson, Jan F. Kiviaho, Graeme J. Kennedy, and Marilyn J. Smith. Evaluation of time-domain damping identification methods for flutter-constrained optimization. Journal of Fluids and Structures, 87:174–188, 2019. doi:10.1016/j.jfluidstructs.2019.03.011.
Jan F. Kiviaho, Kevin E. Jacobson, and Graeme J. Kennedy. Flutter boundary identification from time-domain simulations using the matrix pencil method. AIAA Journal, 2019. doi:https://arc.aiaa.org/doi/full/10.2514/1.J058072.
Mark K. Leader, Ting Wei Chin, and Graeme J. Kennedy. High-resolution topology optimization with stress and natural frequency constraints. AIAA Journal, 2019. doi:10.2514/1.J057777.
Komahan Boopathy and Graeme J Kennedy. Parallel finite element framework for rotorcraft multibody dynamics and discrete adjoint sensitivities. AIAA Journal, 2019. doi:10.2514/1.J056585.
Graeme J Kennedy and Ting Wei Chi. A sequential convex optimization method for multimaterial compliance design problems. Computers & Structures, 212:110 – 124, 2019. doi:10.1016/j.compstruc.2018.10.007.
Andrew B Lambe, Graeme J Kennedy, and Joaquim R R A Martins. An evaluation of constraint aggregation strategies for wing box mass minimization. Structural and Multidisciplinary Optimization, 55(1):257–277, 2017. doi:10.1007/s00158-016-1495-1.
Graeme J. Kennedy. A full-space barrier method for stress-constrained discrete material design optimization. Structural and Multidisciplinary Optimization, 2016. Accepted. doi:10.1007/s00158-016-1428-z.
Graeme J. Kennedy. Discrete thickness optimization via piecewise constraint penalization. Structural and Multidisciplinary Optimization, 51(6):1247–1265, 2015. doi:10.1007/s00158-014-1210-z.
Graeme J. Kennedy and Jason E. Hicken. Improved constraint-aggregation methods. Computer Methods in Applied Mechanics and Engineering, 289:332–354, 2015. doi:10.1016/j.cma.2015.02.017.
Graeme J. Kennedy. Strategies for adaptive optimization with aggregation constraints using interior-point methods. Computers & Structures, 153:217–229, 2015. doi:10.1016/j.compstruc.2015.02.024.
Kai A. James, Graeme J. Kennedy, and Joaquim R.R.A. Martins. Concurrent aerostructural topology optimization of a wing box. Computers & Structures, 134:1 – 17, 2014. doi:10.1016/j.compstruc.2013.12.007.
Gaetan K. W. Kenway, Graeme J. Kennedy, and Joaquim R. R. A. Martins. Scalable parallel approach for high-fidelity steady-state aeroelastic analysis and adjoint derivative computations. AIAA Journal, 52:935–951, 2014. doi:10.2514/1.J052255.
Graeme J. Kennedy and Joaquim R. R. A. Martins. A parallel aerostructural optimization framework for aircraft design studies. Structural and Multidisciplinary Optimization, pages 1–23, 2014. doi:10.1007/s00158-014-1108-9.
Graeme J. Kennedy and Joaquim R. R. A. Martins. A parallel finite-element framework for large-scale gradient-based design optimization of high-performance structures. Finite Elements in Analysis and Design, 87(0):56 – 73, 2014. doi:10.1016/j.finel.2014.04.011.
Graeme J. Kennedy and Joaquim R. R. A. Martins. A laminate parametrization technique for discrete ply-angle problems with manufacturing constraints. Structural and Multidisciplinary Optimization, pages 1–15, 2013. doi:10.1007/s00158-013-0906-9.
Graeme J. Kennedy and Joaquim R. R. A. Martins. A homogenization-based theory for anisotropic beams with accurate through-section stress and strain prediction. International Journal of Solids and Structures, 49(1):54 – 72, 2012. doi:10.1016/j.ijsolstr.2011.09.012.
Graeme J. Kennedy, Jorn S. Hansen, and Joaquim R. R. A. Martins. A timoshenko beam theory with pressure corrections for layered orthotropic beams. International Journal of Solids and Structures, 48(16-17):2373 – 2382, 2011. doi:10.1016/j.ijsolstr.2011.04.009.
Graeme J. Kennedy and Jorn S. Hansen. The hybrid-adjoint method: a semi-analytic gradient evaluation technique applied to composite cure cycle optimization. Optimization and Engineering, 11:23–43, 2010.
Sean P. Engelstad, Brian J. Burke, Rohan N. Patel, Sejal Sahu, and Graeme J. Kennedy. High-fidelity aerothermoelastic optimization with differentiable cad geometry. In AIAA SciTech 2023 Forum. National Harbor, MD, January 2023. AIAA 2023-0329. doi:10.2514/6.2023-0329.
Ghanendra K. Das, James T. Gloyd, Yicong Fu, Graeme Kennedy, and Kai James. Topology optimization of crash-tolerant aircraft structures. In AIAA AVIATION 2023 Forum. June 2023. AIAA 2023-4379. URL: https://arc.aiaa.org/doi/abs/10.2514/6.2023-4379, doi:10.2514/6.2023-4379.
Yicong Fu, Bao Li, and Graeme J. Kennedy. Multiphysics simulation and optimization using high-order finite elements with structured differentiation. In AIAA SCITECH 2023 Forum. Jan 2023. AIAA 2023-0530. URL: https://doi.org/10.2514/6.2023-0530, doi:10.2514/6.2023-0530.
Graeme Kennedy and Yicong Fu. Topology optimization with natural frequency constraints using a quadratic approximation of a spectral aggregate. In AIAA SCITECH 2022 Forum. Jan 2022. AIAA 2022-2244. URL: https://arc.aiaa.org/doi/abs/10.2514/6.2022-2244, doi:10.2514/6.2022-2244.
Liam J. Smith, Lenard J. Halim, Graeme Kennedy, and Marilyn J. Smith. A high-fidelity coupling framework for aerothermoelastic analysis and adjoint-based gradient evaluation. In AIAA Scitech 2021 Forum. 2021. doi:10.2514/6.2021-0407.
Graeme Kennedy and Yicong Fu. Topology optimization benchmark problems for assessing the performance of optimization algorithms. In AIAA Scitech 2021 Forum. 2021. doi:10.2514/6.2021-1357.
Mark K. Leader and Graeme Kennedy. Thermoelastic topology optimization using steady-state and transient analysis for stress and thermal performance. In AIAA Scitech 2021 Forum. 2021. doi:10.2514/6.2021-1895.
Komahan Boopathy and Graeme Kennedy. Semi-intrusive uncertainty propagation and adjoint sensitivity analysis using the stochastic galerkin method. In AIAA Scitech 2020 Forum. 2020. doi:10.2514/6.2020-1146.
Mark Leader, Ting Wei Chin, and Graeme Kennedy. Thermomechanical design of electric vehicle components with mission performance requirements using topology optimization. In AIAA Aviation 2019 Forum. 06 2019. doi:10.2514/6.2019-3557.
Eirikur Jonsson, Charles A. Mader, Graeme Kennedy, and Joaquim R. R. A. Martins. Computational modeling of flutter constraint for high-fidelity aerostructural optimization. In AIAA Scitech 2019 Forum. 2019. doi:10.2514/6.2019-2354.
Joaquim Martins and Graeme Kennedy. Enabling large-scale multidisciplinary design optimization through adjoint sensitivity analysis. In AIAA Scitech 2019 Forum. 01 2019. doi:10.2514/6.2019-1702.
Jan F Kiviaho, Kevin Jacobson, Marilyn J Smith, and Graeme Kennedy. Application of a time-accurate aeroelastic coupling framework to flutter-constrained design optimization. In 19th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, AIAA Aviation Forum. 2018. AIAA AIAA 2018-2932. doi:10.2514/6.2018-2932.
Kevin Jacobson, Jan F Kiviaho, Marilyn J Smith, and Graeme Kennedy. An aeroelastic coupling framework for time-accurate analysis and optimization. In 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciŦech Forum. 2018. AIAA 2018-0100. doi:10.2514/6.2018-0100.
Mark Leader, Ting Wei Chin, and Graeme J Kennedy. High resolution topology optimization of aerospace structures with stress and frequency constraints. In AIAA Aviation 2018. 2018. AIAA 2018-4056. doi:10.2514/6.2018-4056.
Ting Wei Chin and Graeme J Kennedy. Multimaterial thermoelastic stress-constrained topology optimization of structures with adaptive mesh refinement. In 2018 Multidisciplinary Analysis and Optimization Conference, AIAA Aviation 2018. 2018. AIAA 2018-4054. doi:10.2514/6.2018-4054.
Robert D. Braun Adam T. Sidor and Graeme Kennedy. Methodology for optimal design of a conformal ablative heatshield. In 2018 Joint Thermophysics and Heat Transfer Conference, AIAA AVIATION Forum. 2018. AIAA 2018-4178. doi:10.2514/6.2018-4178.
Jan F Kiviaho, Kevin Jacobson, Marilyn J Smith, and Graeme Kennedy. A robust and flexible coupling framework for aeroelastic analysis and optimization. In 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, AIAA Aviation Forum. 2017. AIAA 2017-4144. doi:10.2514/6.2017-4144.
Komahan Boopathy and Graeme Kennedy. Adjoint-based derivative evaluation methods for flexible multibody systems with rotorcraft applications. In 55th AIAA Aerospace Sciences Meeting. Grapevine, TX, 2017. doi:10.2514/6.2017-1671.
Alp Dener, Pengfei Meng, Jason E. Hicken, Graeme J. Kennedy, John Hwang, and Justin S. Gray. Kona: a parallel optimization library for engineering-design problems. In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech. 2016. doi:10.2514/6.2016-1422.
Timothy R. Brooks, Graeme J. Kennedy, and Joaquim R. R. A. Martins. High-fidelity aerostructural optimization of a high aspect ratio tow-steered wing. In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech. 2016. doi:10.2514/6.2016-1179.
Ting Wei Chin and Graeme J. Kennedy. Large-scale compliance-minimization and buckling topology optimization of the undeformed common research model wing. In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech. 2016. doi:10.2514/6.2016-0939.
Graeme J. Kennedy and Komahan Boopathy. A scalable adjoint method for coupled flexible multibody dynamics. In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech. 2016. doi:10.2514/6.2016-1907.
Ting Wei Chin and Graeme J Kennedy. Efficient large-scale thermoelastic topology optimization of cad geometry with automated adaptive mesh generation. In 59th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech. 2016. doi:https://doi.org/10.2514/6.2018-1381.
Graeme J Kennedy. Adjoint-based mesh adaptation techniques for aggregation functionals in structural design optimization. In 17th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, AIAA Aviation. 2016. AIAA 2016-4127. doi:10.2514/6.2016-4127.
Graeme J. Kennedy. A full-space method with matrix aggregates for stress-constrained structural optimization. In 16th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Dallas, TX, 2015.
Graeme J. Kennedy. Large-scale multimaterial topology optimization for additive manufacturing. In 56th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Kissimmee, FL, 2015.
Graeme J. Kennedy, Gaetan K. W. Kenway, and Joaquim R. R. A. Martins. High aspect ratio wing design: optimal aerostructural tradeoffs for the next generation of materials. In 52nd Aerospace Sciences Meeting. National Harbor, Maryland, 2014. AIAA 2014-0596.
Gaetan K. W. Kenway, Graeme J. Kennedy, and Joaquim R. R. A. Martins. Aerostructural optimization of the common research model configuration. In Aviation 2014. Atlanta, Georgia, 2014.
Graeme J. Kennedy, Gaetan K. W. Kenway, and Joaquim R. R. A. Martins. Towards gradient-based design optimization of flexible transport aircraft with flutter constraints. In Aviation 2014. Atlanta, Georgia, 2014.
Andrew B. Lambe, Graeme J. Kennedy, and Joaquim R. R. A. Martins. Multidisciplinary design optimization of an aircraft wing via a matrix-free approach. In 15th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Atlanta, GA, 2014.
Graeme J. Kennedy and Joaquim R. R. A. Martins. Hybrid-parallel methods for large-scale gradient-based structural design optimization. In 10th World Congress on Structural and Multidisciplinary Optimization. Orlando, FA, 2013.
Graeme J. Kennedy and Joaquim R. R. A. Martins. An adjoint-based derivative evaluation method for time-dependent aeroelastic optimization of flexible aircraft. In Proceedings of the 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Boston, MA, 2013.
Gaetan K. W. Kenway, Graeme J. Kennedy, and Joaquim R. R. A. Martins. A scalable parallel approach for high-fidelity aerostructural analysis and optimization. In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Honolulu, HI, 2012. AIAA-2012-1922.
Graeme J. Kennedy and Joaquim R. R. A. Martins. A comparison of metallic and composite aircraft wings using aerostructural design optimization. In 14th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Indianapolis, IN, 2012.
Graeme J. Kennedy and Joaquim R. R. A. Martins. A regularized discrete laminate parametrization technique with applications to wing-box design optimization. In 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Honolulu, HI, 2012. AIAA-2012-1519.
Graeme J. Kennedy and Joaquim R. R. A. Martins. Aerostructural design optimization of composite aircraft with stress and local buckling constraints using an implicit structural parametrization. In Proceedings of CASI AERO 2011. Montreal, Quebec, 2011.
Kai A. James, Graeme J. Kennedy, and Joaquim R. R. A. Martins. Aerostructural topology optimization of an aircraft wingbox. In Proceedings of CASI AERO 2011. Montreal, Quebec, 2011.
Gaetan K. W. Kenway, Graeme J. Kennedy, and Joaquim R. R. A. Martins. A cad-free approach to high-fidelity aerostructural optimization. In 13th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Forth Worth, TX. AIAA-2010-9231, 2010.
Graeme J. Kennedy and Joaquim R. R. A. Martins. Parallel solution methods for aerostructural analysis and design optimization. In Proceedings of the 13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference. Fort Worth, TX, 2010. AIAA 2010-9308.
Graeme J. Kennedy, Joaquim R. R. A. Martins, and Jorn S. Hansen. Aerostructural optimization of aircraft structures using asymmetric subspace optimization. In 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Victoria, BC. AIAA, 2008. AIAA-2008-5847.
Christopher Andre Beltempo, Jorn S. Hansen, and Graeme J. Kennedy. Cost-based integrated design optimization of a stiffened plate. In 12th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Victoria, BC. AIAA, 2008.
Graeme J. Kennedy and Jorn S. Hansen. The hybrid-adjoint gradient evaluation technique for gradient-based optimal cure cycle design. In 21st Canadian Congress of Applied Mechanics. Ryerson University, Toronto, Ontario, 2007.
Graeme J. Kennedy and Jorn S. Hansen. Manufacturing process optimization for improved failure performance of thick composites. In Canadian Aeronautics and Space Institute AERO 2007. Toronto, Ontario, 2007.
Graeme J. Kennedy and Jorn S. Hansen. Composite processing optimization for residual stress reduction. In 11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference. Portsmouth, Virginia, 2006.
Jorn S. Hansen, Graeme J. Kennedy, Clayton McLean, and Donatus Oguamanam. A hierarchical beam theory for non-symmetric and piezo-electric laminates. In 18th International Congress of Mechanical Engineering, COBEM2005. Ouro Preto, MG, Brazil, 2005.
Jorn S. Hansen, Graeme J. Kennedy, and S'ergio F. M. de Almeida. A homogenization-based theory for laminated and sandwich beams. In 7th International Conference on Sandwich Structures, 221–230. Aalborg University, Aalborg, Denmark, 2005.
Joaquim R R A Martins, Gaetan K W Kenway, David Burdette, Eirikur Jonsson, and Graeme J Kennedy. High-fidelity multidisciplinary design optimization of aircraft configurations. Technical Report 2017–219647, NASA, Washington DC, 2017.