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David L. Littlefield
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Proceedings Papers

Validation of an Improved Contact Method for Multi-Material Eulerian Hydrocodes in Three-Dimensions

Kenneth C. Walls, David L. Littlefield
Proc. ASME. HVIS2019, 2019 15th Hypervelocity Impact Symposium, V001T02A004, April 14–19, 2019
Paper No: HVIS2019-060
DOI: https://doi.org/10.1115/HVIS2019-060
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Topics: Deformation, Dimensions, Dynamics (Mechanics), Finite element analysis, Finite element methods, Modeling
Proceedings Papers

A Probabilistic Approach to Aircraft Turbine Rotor Material Design

Gerald R. Leverant, David L. Littlefield, R. Craig McClung, Harry R. Millwater, Justin Y. Wu
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T14A010, June 2–5, 1997
Paper No: 97-GT-022
DOI: https://doi.org/10.1115/97-GT-022
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Topics: Aircraft, Design, Rotors, Turbines, Disks, Titanium alloys, Alloys, Computer software, Fatigue cracks, Fracture (Materials)
Proceedings Papers

Development of a Biofidelic Material Model for Brain Tissue

Sandeep Kulathu, David L. Littlefield
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 77-78, June 22–25, 2011
Paper No: SBC2011-53136
DOI: https://doi.org/10.1115/SBC2011-53136
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Topics: Biological tissues, Brain, Simulation, Anisotropy, Composite materials, Constitutive equations, Fibers, Stress, Traumatic brain injury, Viscoelastic materials
Proceedings Papers

On Determining Conditions for Optimal Performance of Cased Munitions

Kenneth C. Walls, David L. Littlefield, David E. Lambert
Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 461-465, July 17–21, 2011
Paper No: PVP2011-57981
DOI: https://doi.org/10.1115/PVP2011-57981
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Topics: Computer software, Design, Explosions, Explosives, Kinetic energy, Munitions, Optimization, Warheads
Proceedings Papers

Validation of the Kerley Soil Model in CTH

David L. Littlefield, Kenneth C. Walls, Kent T. Danielson, Joseph Jordan
Proc. ASME. PVP2011, Volume 4: Fluid-Structure Interaction, 467-470, July 17–21, 2011
Paper No: PVP2011-57992
DOI: https://doi.org/10.1115/PVP2011-57992
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Topics: Soil, Modeling, Shock (Mechanics)
Proceedings Papers

Maximizing the Performance of Cased Munitions Under Realistic Constraints

Kenneth C. Walls, David L. Littlefield, David E. Lambert
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 4, 279-284, July 18–22, 2010
Paper No: PVP2010-25946
DOI: https://doi.org/10.1115/PVP2010-25946
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Topics: Computer software, Design, Explosions, Explosives, Kinetic energy, Munitions, Optimization, Polymers, Titanium alloys, Warheads
Proceedings Papers

Coupling EPIC to LS-DYNA for Simulation of Blast-Structure-Fragmentation Interaction

David L. Littlefield, Kenneth C. Walls, Kent T. Danielson
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 4, 285-289, July 18–22, 2010
Paper No: PVP2010-26175
DOI: https://doi.org/10.1115/PVP2010-26175
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Topics: Simulation, Algorithms, Deformation, Finite element analysis, Modeling, Weapons
Proceedings Papers

Coupling a Detonation Shock Dynamics Code to an Eulerian Hydrocode

David L. Littlefield, Young-Ho Kim, David E. Lambert
Proc. ASME. PVP2009, Volume 4: Fluid-Structure Interaction, 673-678, July 26–30, 2009
Paper No: PVP2009-78100
DOI: https://doi.org/10.1115/PVP2009-78100
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Topics: Dynamics (Mechanics), Explosions, Shock (Mechanics), Geometry
Proceedings Papers

Development of Reactive Flow Models for Energetic Materials

David L. Littlefield, Kenneth C. Walls, David E. Lambert
Proc. ASME. PVP2009, Volume 4: Fluid-Structure Interaction, 709-714, July 26–30, 2009
Paper No: PVP2009-78098
DOI: https://doi.org/10.1115/PVP2009-78098
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Topics: Calibration, Chemically reactive flow, Computer software, Cylinder tests (Concrete), Equations of state, Model development, Optimization, Wedges