Dr. Montoya is an Associate Professor and holds a dual appointment in the Departments of Civil Engineering and Mechanical Engineering at UTSA.  Dr. Montoya joined UTSA  in 2012 after completing his PhD at Columbia University.

Download Dr. Montoya’s CV here.





  • Dr. Montoya’s research interests are in the areas of :

Computational Modeling in Civil Engineering Applications

Advances in Computational Methods for Solid Mechanics

Deterioration of Materials under Corrosive Environments


Click here to watch Dr. Montoya’s research video.

Computational Modeling

-Computational Fracture Techniques for Structures in Extreme Environments.

-Modeling Damage Induced During the Galvanization of High Mass Illumination Poles.

-Modeling the Response of Reinforced Concrete Barriers during Vehicle Impact.

-Modeling Mechanical Techniques for Improving Fatigue life of drilled holes in steel bridges. ​

Advances in Computational Methods for Solid Mechanics

-Development of a Novel Computational Technique for Sensitivity Analysis, Fracture Mechanics and Variance Approximation for Nonlinear Structural Problem.

-Computational Fracture Techniques for Structures in Extreme Environments


Deterioration of Materials under Corrosive Environments

-Modeling the potential risk of hydrogen embrittlement of Zn-Ni Coated high strength steel.

Thanks to Elsyca for the donation of their software.


-Corrosion Deterioration in Bridge Structural Members.

-Understanding the Interaction between Chemical Contaminants and Structural Materials

Sponsored Research Projects

  • Dessouky, S. , R. Guo, A. Montoya, H. Sharif, A. Bhalla, A.T. Papagiannakis, S. Binzaid, “A Hybrid Integrated Sensing and Energy Conversion (HiSEC) System for Harvesting Mechanical and Thermal Energy from Roadways” Sponsored by San Antonio City Public Service, $298,882 (September 1, 2017 – August 31, 2018).


  • Montoya, A. , B. Rincon-Troconis , H. Millwater, and H. Shipley, “Faculty Development Program at the University of Texas at San Antonio: Probabilistic Risk Assessment of Stress Corrosion Cracking in Nuclear Facilities” Sponsored by The Nuclear Regulatory Commission, $450,000 (June 30, 2017 – June 29, 2020).


  • Shipley, H., A. Montoya. , “Graduate Fellowship Program in Nuclear Safety: Critical Thinking, Research Skills and Professional Development” Sponsored by The Nuclear Regulatory Commission, $399,351 (June 30, 2017 – June 29, 2021).


  • Shipley, H., A. Montoya. and K. Nash, “Understanding Interactions of Chemical Contaminants to DOE Facility Material using Spectroscopic Techniques” Sponsored by Department of Energy/ Savannah River Nuclear Solutions, $273,134 (April 1, 2017 – March 31, 2018).


  • Dessouky, S., A. Montoya. , A.T. Papagiannakis , R. Guo, “Development of Highway Sensing and Energy Conversion (HISEC) Modules for Generating Power,” Sponsored by Texas Department of Transportation, $1,320,583 (January 1, 2015 – August 31, 2016).


  • Montoya, A., “A Novel Fracture Characterization Approach for Materials Exhibiting Inelastic Behavior Based on the MultiComplex Finite Element Method”, Sponsored by VPR-Proposal Enhancement Program, UTSA, $20,000 (February 1, 2016 – July 31, 2016).


  • Montoya, A., H. Shipley, S. Dessouky, andJ. Joseph, “CEE Course Re-Design Using Active Learning,” UTSA, College of Engineering through NSF TRESTLE, Program, $10,000 (January, 2016 – May, 2017).


  • Millwater, H, A. Montoya Wilkerson, A, “Three Dimensional Fracture Mechanics Capability for Structures Operating in High Temperature Thermal Environments,” Sponsored by US Department of Defense, Federal, $397,843 (August 15, 2015-August 14, 2018).


  • Montoya A., “Efficient Structural Health Management and Prognosis through a Novel Fracture Mechanics”, Sponsored by The University of Texas at San Antonio, $20,000 (September 1, 2015- August 2016).


  • Montoya, A.  and G. Waldemar, “Potential Risk of Hydrogen Embrittlement of ZnNi Coated High Strength Steel”, Sponsored by Southwest Research Institute, $66,028.00 (September 1, 2015-May 30, 2016).


  • Montoya, A., “Development of a Probabilistic Environmental Model to Predict the Deterioration Behavior of Steel Bridge Elements,” Sponsored by The University of Texas at San Antonio, UTSA, $27,500.00. (September 1, 2013 – August 31, 2014).


  • Diaz, M. A. , Chowdhury, A. H. , and Montoya, A., “Course Development for a Certificate in Risk and Safety Analysis of Structural Components in Nuclear Facilities”, Sponsored by the Nuclear Regulatory Commission, $199,981. (September 1, 2012 – June 30, 2015).



Published Journal Articles-Peer Reviewed

Montoya, A., D. Ramirez, H. Millwater, and M. Kirby.  A Complex-Variable Virtual Crack Extension Finite Element Method for Elastic-Plastic Fracture Mechanics. Engineering Fracture Mechanics, 202:242-258, 2018. https://doi.org/10.1016/j.engfracmech.2018.09.023


Ramirez Tamayo, D., A. Montoya, and H. Millwater.  Application of the Complex-variable Finite Element Method to Mixed Mode Fracture and Interface Cracks. AIAA Journal, 56(11):4632-4637, 2018. https://doi.org/10.2514/1.J057231

Nguyen, K., R. Nasouri, C. Bennett, A. Matamoros, J. Li and A. Montoya. Thermomechanical Modeling of Welding and Galvanizing a Steel Beam Connection Detail to Examine Susceptibility to Cracking. Materials Performance and Characterization, ISSN 2739-1365, 2018. https://doi.org/10.1520/MPC20170115.


Ramirez, D., A. Montoya and H. Millwater.  A Virtual Crack Extension Method for thermoelastic fracture using a complex-variable finite element method. Engineering Fracture Mechanics. 192:328-342, 2018.https://doi.org/10.1016/j.engfracmech.2017.12.013


Fielder, R., A. Montoya, H. Millwater and P. Golden.  Residual Stress Sensitivity Analysis Using a Complex Variable Finite Element Method. International Journal of Mechanical Sciences, 133, 2017.http://doi.org/10.1016/j.ijmecsci.2017.08.035.


Roshani, H., P. Jagtap, S. Dessouky, A. Montoya and A.T. Papagiannakis.  Theoretical and Experimental Evaluation of Two Roadway Piezoelectric-Base Harvesting Prototypes. ASCE Journal of Materials in Civil Engineering. 2017.           http://dx.doi.org/10.1061/(ASCE)MT.1943-5533.0002112.


Papagiannakis, A.T., A. Montoya, S. Dessouky, J. Helffrich. Development and Evaluation of Piezoelectric Prototypes for Roadway Energy Harvesting. ASCE Journal of Energy Engineering, 143(5), 2017. http://dx.doi.org/10.1061/(ASCE)EY.1943-7897.0000467.


Roshani, H., S. Dessouky, A. T. Papagiannakis, and A. Montoya. Experimental and Finite Element Assessment of Three Energy Harvesting Prototypes for Roadways. Journal of Innovative Infrastructure Solutions, 2(1):7, 2017. http://dx.doi.org/10.1007/s41062-017-0055-x


Montoya, A. and H. Millwater. Sensitivity Analysis in Thermoelastic Problems Using the Complex Finite Element Method. Journal of Thermal Stresses.  40(3): 302-321, 2017. http://dx.doi.org/10.1080/01495739.2016.1264871.


Papagiannakis, A.T, S. Dessouky, A. Montoya and H. Roshani. Energy Harvesting for Roadways. Procedia Computer Science, 83:758-765, 2016. http://dx.doi.org/10.1016/j.procs.2016.04.164.


Roshani, H., S. Dessouky, A. Montoya and A.T. Papagiannakis. Energy Harvesting from Asphalt Pavement Roadways Vehicle-Induced Stresses: A Feasibility Study. Applied Energy, 182:210-218, 2016. http://dx.doi.org/10.1016/j.apenergy.2016.08.116.


Millwater, H., D. Wagner, A. Baines and A. Montoya. A Virtual Crack Extension Method to Compute Energy Release Rates Using a Complex Variable Finite Element Method. Engineering Fracture Mechanics, 162:95-111, 2016. http://dx.doi.org/10.1016/j.engfracmech.2016.04.002.


Gomez-Farias, A., A. Montoya and H. Millwater. Complex Finite Element Sensitivity Method for Creep Analysis. International Journal of Pressure Vessels and Piping, 132-133:27-42, 2015. http://dx.doi.org/10.1016/j.ijpvp.2015.05.006.


Montoya, A., R. Fielder, A. Gomez-Farias and H. Millwater. Finite-Element Sensitivity for Plasticity Using Complex Variable Methods. ASCE Journal of Engineering Mechanics, 141(2):04014118, 2014. http://dx.doi.org/10.1061/(ASCE)EM.1943-7889.0000837.


Montoya, A., G. Deodatis, R. Betti and H. Waisman. Physics-Based Stochastic Model to Determine the Failure Load of Suspension Bridge Cables. Journal of Computing in Civil Engineering, 29(4): B4014002, 2014. http://dx.doi.org/10.1061/(ASCE)CP.19435487.0000393.


Montoya, A., H. Waisman and R. Betti. A Simplified Contact-Friction Methodology for Modeling Wire Breaks in Parallel Wire Strands. Computers & Structures, 100-101:39-53, 2012. http://dx.doi.org/10.1016/j.compstruc.2012.03.003.


Waisman, H, A. Montoya, R. Betti and I.C. Noyan. Load Transfer and Recovery Length in Parallel Wires of Suspension Bridge Cables. ASCE Journal of Engineering Mechanics, 137(4):227-237, 2011. http://dx.doi.org/10.1061/(ASCE)EM.1943-7889.0000220.



Published Conference Proceedings-Peer Reviewed

Ramirez, D., A. Montoya and H. Millwater.  A New Complex-valued Thermal Fracture Approach for Evaluating the Structural Integrity of Aircraft Structures. AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech Forum, (AIAA 2018-0649), 2018. https://doi.org/10.2514/6.2018-0649 


Nasouri, R, K. Nguyen, A. Montoya, A. Matamoros, C. Bennett., and J. Effect of Geometric Configuration on High-Mast Illumination Pole Demands During Galvanizing Process. Intergalva Conference Proceedings- Berlin, Germany, 2018. In Press.


Nguyen, K., R. Nasouri, C. Bennett, A. Matamoros, J. Li and A. Montoya. Sensitivity of Predicted Temperature in a Fillet Weld T-Joint to Parameters Used in Welding Simulation with Prescribed Temperature Approach. SIMULIA Conference Science in the Age of Experience 2017. https://www.3ds.com/fileadmin/PRODUCTS/SIMULIA/PDF/scc-papers/2017/temperature-fillet-weld-t-joint-univkansas-nguyen.pdf


Roshani, H., S. Dessouky, A.T. Papagiannakis, A. Montoya, Feasibility Study on Harvesting Energy from Roadway Infrastructure. ASCE Geo-Chicago 2016, 588-597, 2016. http://dx.doi.org/10.1061/9780784480137.056


Montoya, A. and H. Ling. “Experimental Tests on Geocell Reinforced Nevada Sand.” Design and Practice of Geosynthetic Reinforced Soil Structures 369-376, 2013.



Montoya, A., Betti, R., Deodatis, G. and Waisman, H. “A Stochastic Finite Element Approach to Determine the Safety of Suspension Bridge Main Cables.”  ASCE-International Workshop on Computing in Civil Engineering Proceedings, pp 1-8, 2013.






Reza Nasouri (co-Advisor: Adolfo Matamoros)

Research Topic: Galvanizing of High Mast Illumination Poles

Daniel Ramirez (co-Advisor: Harry Millwater)

Research Topic: Complex Finite Element Method, Progressive Fracture

Mehdi Najarian

Research Topic: Bridge Fatigue Assesment

Arsalan Majlesi

Research Topic: Hydrodynamic Response of Coastal Bridges due to Extreme Weather Events

Echizeni Ikpah

Research Topic: Residual Stresses in Steel Structures


Sarah Legette

Research Topic: Energy Harvesting from Roadways

Matthew Balcer

Research Topic: Variance Approximation


Daniela Gomez


  • Dr. Montoya earns tenure and promotion
  • Nuclear Regulatory Commission awards UTSA $849,351 to support faculty and student development