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Dimitris Lagoudas
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Proceedings Papers

Designing a Morphable Parabolic Reflector Antenna Using Origami-Inspired Discretization and Efficient Global Optimization

Gregory Wilson, Dimitris Lagoudas, Darren Hartl
Proc. ASME. SMASIS2020, ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A017, September 15, 2020
Paper No: SMASIS2020-2431
DOI: https://doi.org/10.1115/SMASIS2020-2431
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Topics: Design, Modeling, Optimization, Origami-inspired design, Optimization algorithms, Actuators, Radiation (Physics), Shape memory alloys, Shapes, Signals
Proceedings Papers

A Three-Dimensional Constitutive Model for Polycrystalline Shape Memory Alloys Under Large Strains Combined With Large Rotations

Lei Xu, Theocharis Baxevanis, Dimitris Lagoudas
Proc. ASME. SMASIS2018, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies, V002T02A007, September 10–12, 2018
Paper No: SMASIS2018-8050
DOI: https://doi.org/10.1115/SMASIS2018-8050
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Topics: Constitutive equations, Shape memory alloys, Deformation, Actuators, Torque, Active materials, Alloys, Creep, Density, Intermetallic compounds
Proceedings Papers

Engineering Design Tools for Shape Memory Alloy Actuators: CASMART Collaborative Best Practices and Case Studies

Robert W. Wheeler, Othmane Benafan, Xiujie Gao, Frederick T. Calkins, Zahra Ghanbari, Garrison Hommer, Dimitris Lagoudas, Andrew Petersen, Jennifer M. Pless, Aaron P. Stebner, Travis L. Turner
Proc. ASME. SMASIS2016, Volume 1: Multifunctional Materials; Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Structural Health Monitoring, V001T04A010, September 28–30, 2016
Paper No: SMASIS2016-9183
DOI: https://doi.org/10.1115/SMASIS2016-9183
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Topics: Actuators, Engineering design, Shape memory alloys, Design, Modeling, Stress, Solar cell arrays, Deformation, Engineering models, Engineering prototypes
Proceedings Papers

Design of a Reconfigurable SMA-Based Solar Array Deployment Mechanism

Robert Wheeler, Robert Saunders, Kelli Pickett, Cullen Eckert, Hannah Stroud, Tyler Fink, Kanika Gakhar, James Boyd, Dimitris Lagoudas
Proc. ASME. SMASIS2015, Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems, V001T02A010, September 21–23, 2015
Paper No: SMASIS2015-9040
DOI: https://doi.org/10.1115/SMASIS2015-9040
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Topics: Design, Solar cell arrays, Actuators, Weight (Mass), Deformation, Metals, Phase transitions, Shape memory alloys, Solar energy, Stress
Proceedings Papers

Design and Analysis of a Self-Folding SMA-SMP Composite Laminate

Robert Saunders, Darren Hartl, Richard Malak, Dimitris Lagoudas
Proc. ASME. IDETC-CIE2014, Volume 5B: 38th Mechanisms and Robotics Conference, V05BT08A048, August 17–20, 2014
Paper No: DETC2014-35151
DOI: https://doi.org/10.1115/DETC2014-35151
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Topics: Composite materials, Design, Laminates, Shapes, Wire, Deflection, Deformation, Glass transition, Materials properties, Particle filtering (numerical methods)
Proceedings Papers

Effect of Processing and Loading on Equiatomic NiTi Fatigue Life and Localized Failure Mechanisms

Robert Wheeler, Judy Santa-Cruz, Darren Hartl, Dimitris Lagoudas
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T02A010, September 16–18, 2013
Paper No: SMASIS2013-3163
DOI: https://doi.org/10.1115/SMASIS2013-3163
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Topics: Failure mechanisms, Fatigue life, Nickel titanium alloys, Fatigue, Heat, Stress, Aerospace industry, Actuators, Computer software, Cooling
Proceedings Papers

Numerical Evaluation of the Effect of Ni 4 Ti 3 Precipitates on the Overall Thermo-Mechanical Response of NiTi Shape Memory Alloys

Austin Cox, Theocharis Baxevanis, Dimitris Lagoudas
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T02A012, September 16–18, 2013
Paper No: SMASIS2013-3183
DOI: https://doi.org/10.1115/SMASIS2013-3183
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Topics: Nickel titanium alloys, Thermomechanics
Proceedings Papers

On the Energy Release Rate During Global Thermo-Mechanically-Induced Phase Transformation in Shape Memory Alloys

Antonino Parrinello, Theocharis Baxevanis, Dimitris Lagoudas
Proc. ASME. SMASIS2013, Volume 2: Mechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting, V002T02A014, September 16–18, 2013
Paper No: SMASIS2013-3187
DOI: https://doi.org/10.1115/SMASIS2013-3187
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Topics: Fracture (Materials), Phase transitions, Shape memory alloys
Proceedings Papers

Modeling of Shape Memory Alloy Wire Meshes Using Effective Lamina Properties for Improved Analysis Efficiency

Edwin Peraza-Hernandez, Darren Hartl, Dimitris Lagoudas
Proc. ASME. SMASIS2013, Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation, V001T01A009, September 16–18, 2013
Paper No: SMASIS2013-3094
DOI: https://doi.org/10.1115/SMASIS2013-3094
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Topics: Modeling, Shape memory alloys, Wire, Finite element analysis, Laminates, Wire mesh, Calibration, Constitutive equations, Dimensions, Engineering simulation
Proceedings Papers

A Finite Element Study of Stable Crack-Growth in Superelastic Shape Memory Alloys

Antonino Parrinello, Theocharis Baxevanis, Dimitris Lagoudas, Austin Cox
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 1-7, September 19–21, 2012
Paper No: SMASIS2012-7912
DOI: https://doi.org/10.1115/SMASIS2012-7912
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Topics: Finite element analysis, Fracture (Materials), Phase transitions, Shape memory alloys
Proceedings Papers

Analytical Solution for Pseudoelastic Response of a Shape Memory Alloy Thick-Walled Cylinder Under Internal Pressure

Majid Tabesh, Bingfei Liu, James Boyd, Dimitris Lagoudas
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 223-236, September 19–21, 2012
Paper No: SMASIS2012-8187
DOI: https://doi.org/10.1115/SMASIS2012-8187
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Topics: Cylinders, Pressure, Shape memory alloys, Displacement, Hardening, Stress
Proceedings Papers

Influence of the Latent Heat of Transformation and Thermomechanical Coupling on the Performance of Shape Memory Alloy Actuators

Majid Tabesh, Brian Lester, Darren Hartl, Dimitris Lagoudas
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 237-248, September 19–21, 2012
Paper No: SMASIS2012-8188
DOI: https://doi.org/10.1115/SMASIS2012-8188
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Topics: Actuators, Design, Latent heat, Shape memory alloys, Thermomechanics
Proceedings Papers

Mode I Steady Crack-Growth in Superelastic Shape Memory Alloys

Theocharis Baxevanis, Dimitris Lagoudas, Chad Landis
Proc. ASME. SMASIS2012, Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bio-Inspired Materials and Systems; Energy Harvesting, 33-38, September 19–21, 2012
Paper No: SMASIS2012-7934
DOI: https://doi.org/10.1115/SMASIS2012-7934
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Topics: Fracture (Materials), Shape memory alloys, Finite element analysis, Numerical analysis, Plane strain, Steady state, Stress, Thermomechanics, Wakes
Proceedings Papers

Design Optimization of a Shape Memory Alloy Actuated Morphing Aerostructure

Stephen Oehler, Darren Hartl, Dimitris Lagoudas, Richard Malak
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 421-429, September 18–21, 2011
Paper No: SMASIS2011-5068
DOI: https://doi.org/10.1115/SMASIS2011-5068
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Topics: Design, Optimization, Shape memory alloys, Finite element analysis, Constitutive equations, Deflection, Modeling, Actuators, Aerospace industry, Alloys
Proceedings Papers

On the Path-Dependency of the J -Integral in a Pseudoelastic Shape Memory Alloy

Theocharis Baxevanis, Yves Chemisky, Dimitris Lagoudas
Proc. ASME. SMASIS2011, ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 347-353, September 18–21, 2011
Paper No: SMASIS2011-5004
DOI: https://doi.org/10.1115/SMASIS2011-5004
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Topics: Shape memory alloys, Fracture (Materials), Approximation, Boundary layers, Boundary-value problems, Finite element analysis, Flow (Dynamics), Kinematics, Stress
Proceedings Papers

Numerical Prediction of Effective Transformation Properties of Hybrid SMA-Ceramic Composites

Brian Lester, Yves Chemisky, Dimitris Lagoudas
Proc. ASME. SMASIS2010, ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2, 97-104, September 28–October 1, 2010
Paper No: SMASIS2010-3748
DOI: https://doi.org/10.1115/SMASIS2010-3748
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Topics: Ceramics, Composite materials, Metals, Cermets, Design, Mechanical properties, Phase diagrams, Phase transitions, Shape memory alloys, Stress
Proceedings Papers

Three-Dimensional Modeling of Rate-Dependent Deformation in Shape Memory Alloys at High Temperatures

Darren Hartl, George Chatzigeorgiou, Dimitris Lagoudas
Proc. ASME. SMASIS2009, Volume 1: Active Materials, Mechanics and Behavior; Modeling, Simulation and Control, 309-316, September 21–23, 2009
Paper No: SMASIS2009-1468
DOI: https://doi.org/10.1115/SMASIS2009-1468
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Topics: Deformation, High temperature, Shape memory alloys, Three-dimensional modeling, Temperature, Shapes, Adaptive structures, Constitutive equations, Creep, Finite element analysis
Proceedings Papers

Active Length Control of Shape Memory Alloy Wires Via Reinforcement Learning

Kenton Kirkpatrick, John Valasek, Dimitris Lagoudas
Proc. ASME. SMASIS2009, Volume 1: Active Materials, Mechanics and Behavior; Modeling, Simulation and Control, 267-276, September 21–23, 2009
Paper No: SMASIS2009-1430
DOI: https://doi.org/10.1115/SMASIS2009-1430
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Topics: Shape memory alloys, Wire, Temperature, Actuators, Algorithms, Computer simulation, Shapes, Aerospace industry, Hardware
Proceedings Papers

Numerically Implemented Constitutive Model for SMA Applications Experiencing General Loads Resulting in Plastic Deformation and Large Rotations

Darren Hartl, Jesse Mooney, Dimitris Lagoudas
Proc. ASME. SMASIS2008, Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 421-429, October 28–30, 2008
Paper No: SMASIS2008-489
DOI: https://doi.org/10.1115/SMASIS2008-489
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Topics: Constitutive equations, Deformation, Stress, Adaptive structures, Algorithms, Computer simulation, Design, Plasticity, Shape memory alloys, Structural elements (Construction)