Education:
PhD, Aerospace Engineering, Texas A&M University
BS, Aerospace Engineering, Texas A&M University

Research Areas:
Design and Analysis of SMA-Based Aerospace Applications
Characterization and Modeling of Shape Memory Alloys
Viscoelastic Response of SMAs at Elevated Temperatures
Analysis of Medical Devices Incorporating SMAs

Publications in Books:
Thermomechanical Characterization of Shape Memory Alloys, In D. Lagoudas (Ed.),
Shape Memory Alloys: Modeling and Engineering Applications, Springer, 2008, pp. 55-124.

Numerical Implementaion of an SMA Thermomechanical Constitutive Model 
Using Return Mapping Algorithms, In D. Lagoudas (Ed.), Shape Memory Alloys: 
Modeling and Engineering Applications, Springer, 2008, pp. 193-236.

Publications in Journals:
Aerospace Applications of Shape Memory Alloys(2007)
Constitutive Modeling and Structural Analysis Considering Simultaneous Phase 
Transformation and Plastic Yield in Shape Memory Alloys(2009)
Use of Ni60Ti Shape Memory Alloy for Active Jet Engine Chevron Application, Part I(2010)
Use of Ni60Ti Shape Memory Alloy for Active Jet Engine Chevron Application, Part II (2010)
Three-Dimensional Modeling and Numerical Analysis, Smart Materials and Structures(2010)

Papers in Conference Proceedings:
Thermomechanical Characterization and Modeling of Ni60Ti40 SMA for Actuated Chevrons(2006)
Characterization and 3-D Modeling of Ni60Ti SMA for Actuation of a Variable Geometry 
Jet Engine Chevron(2007)
Simultaneous Transformation and Plastic Deformation in Shape Memory Alloys(2008)
Experimentally Validated Numerical Analysis of Aerostructures Incorporating 
Shape Memory Alloys(2008)
Analysis of Simultaneous Transformation and Plastic Deformation in Shape Memory Alloys(2008)
Numerically Implemented Constitutive Model for SMA Applications Experiencing General Loads 
Resulting in Plastic Deformation and Large Rotations(2008)
Experimental Investigation and 3-D Modeling of Rate-Dependent Irrecoverable Deformation in 
Shape Memory Alloys(2009)
Modeling of Stress Concentrations in SMA Components Considering Plastic and 
Viscoplastic Yielding(2009)
Three-Dimensional Modeling of Rate-Dependent Deformation in Shape Memory Alloys 
at High Temperatures(2009)
Coexistence of Creep and Transformation in High Temperature Shape Memory Alloys(2009)
3-D Finite Element Analysis of Indentation Recovery due to the Shape Memory Effect(2010)
Characterization of Varied Geometry Shape Memory Alloy Beams(2010)

Presentations:
USRG 2003: Preliminary Design of SMA Rotary Actuators and an Alternative Method of 
Thermomechanical Characterization.
ASME IMECE 2006: Thermomechanical Characterization and Modeling of Ni60Ti40 SMA for 
Actuated Chevrons
SPIE 2007: Characterization and 3-D Modeling of Ni60Ti SMA for Actuation of a Variable Geometry 
Jet Engine Chevron
ASME McMat 2007: 3-D FEA Modeling of Ni60Ti40 SMA Beams as Incorporated 
in Active Chevrons 
SES 2007: Experimental Investigation and Modeling of Plastic Deformation in Shape Memory Alloys.
SES 2007: Experimentally Validated Numerical Analysis of Aerostructures Incorporating 
Shape Memory Alloys.
SPIE 2008: Simultaneous Transformation and Plastic Deformation in 
Shape Memory Alloys.
SPIE 2008: Experimentally Validated Numerical Analysis of Aerostructures Incorporating 
Shape Memory Alloys.
SES 2008: Analysis of Plastically Deformed Shape Memory Alloys Exhibiting 
Tension-Compression Asymmetry.
ASME 2008: Numerically Implemented Constitutive Model for SMA: Plastic Deformation 
and Large Rotations.
SPIE 2009: Three-Dimensional Modeling of Rate-Independent and Rate-Dependent Irrecoverable 
Deformation in Shape Memory Alloys.
ESOMAT 2009: ESF EUROCORES S3T Modeling Data Set: TAMU Results.
ESOMAT 2009: Creep Behavior in TiPdNi High Temperature Shape Memory Alloy.
SMASIS 2009: Three-Dimensional Modeling of Rate-Dependent Deformation in Shape Memory Alloys 
at High Temperatures.
SPIE 2010: 3-D Finite Element Analysis of Indentation Recovery due to the Shape Memory Effect.
SPIE 2010: Characterization of Varied Geometry Shape Memory Alloy Beams.



 

Contact Information:
Room 223J Wisenbaker Engineering Research Center
979-862-7087
darren.hartl@tamu.edu