Thomas E. Lacy, Jr., Ph.D., P.E.

Thomas E. Lacy Jr. received his Ph.D. in Mechanical Engineering from the Georgia Institute of Technology. He joined the Aerospace Engineering faculty in 2003. Dr. Lacy is a Fellow of ASME and an Associate Fellow of AIAA. He is the President of the American Society for Composites.

Dr. Lacy’s interests include computational solid mechanics, multiscale materials modeling, micromechanics, fracture mechanics, fatigue, durability and damage tolerance, composite materials, continuum damage mechanics, and structural dynamics.

• Aircraft Structures
• Solid Mechanics
• Composite Materials
• Continuum Mechanics
• Finite Element Analysis
• Fracture Mechanics

• EM 2413 Engineering Mechanics I
• ASE 3213 Mech of Def Structures

• EM 4123/6123 Intro Finite Element
• EM 4133/6133 Composite Materials

• EM 8113 Theory of Continuous Media

• Damage Tolerance of Metallic and Composite Materials
• Multifunctional Composite Materials
• Multiscale Materials Modeling and Micromechanics
• ICME-based Digital Twin Modelling
• Fracture Mechanics
• Continuum Damage Mechanics
• Mechanics of Golf

• NASA
• Department of Energy
• National Science Foundation
• Federal Aviation Administration
• The Boeing Company

• AbuOmar, O., Nouranian, S., King, R., Bouvard, J.L., Toghiani, H., Lacy, T.E., and Pittman, Jr., C.U., 2013, “Data Mining and Knowledge Discovery Techniques in Materials Science and Engineering: A Polymer Nanocomposites Case Study,” Advanced Engineering Informatics, 27, 615-624.
• Jang, C., Lacy, T.E., Gwaltney, S.R., Toghiani, H., and Pittman Jr., C.U., 2013, “Interfacial Shear Strength of Cured Vinyl Ester Resin-Graphene Sheets from Molecular Dynamics Simulations,” Polymer, 54, 3282-3289.
• Lee, J., Nouranian, S., Torres, G., Lacy, T.E., Toghiani, H., Pittman, C.U, and DuBien, J.L., 2013, “Flexural Properties of Vapor-Grown Carbon Nanofiber/Vinyl Ester Nanocomposites,” Journal of Applied Polymer Science, 130(3), 2087-2099.
• Yu, J., Lacy, T.E., Toghiani, H., and Pittman Jr., C.U., 2013, “Micromechanically-Based Effective Thermal Conductivity Estimates for Polymer Nanocomposites,” Composites Part B,53, 267-273.
• Nouranian, S., Lacy, T.E., Toghiani, H., and Pittman, Jr. C.U., 2013, “Response Surface Predictions of the Viscoelastic Properties of Vapor-Grown Carbon Nanofiber/Vinyl Ester Nanocomposites,” Journal of Applied Polymer Science, 130(1), 234-247.
• Nouranian, S., Lee, J., Torres, G.W., Lacy, T.E., Toghiani, H., and Pittman Jr., C.U., 2013, “Effects of Molding and Curing Atmosphere on the Flexural Properties of Vinyl Ester,” Polymers and Polymer Composites, 21(2), 61-64.
• Yu, J., Lacy, T.E., Toghiani, H., and Pittman Jr., C.U., 2013, “Effective Property Estimates for Composites Containing Multiple Nanoheterogeneities: Part II Nanofibers & Voids,” Journal of Composite Materials, 47(10) 1273-1282.
• Yu, J., Lacy, T.E., Toghiani, H., and Pittman Jr., C.U., 2013,“Effective Property Estimates For Composites Containing Multiple Nanoheterogeneities: Part I Nanospheres, Nanoplatelets, & Voids,” Journal of Composite Materials, 47(5) 549–558.
• Torres, G., Nouranian, S., Lacy, T.E., Toghiani, H., Pittman, Jr. C.U., and DuBien, J.L., 2013, “Statistical Characterization of the Impact Strengths of Vapor-Grown Carbon Nanofiber/Vinyl Ester Nanocomposites Using a Central Composite Design,” Journal of Applied Polymer Science, 128(2), 1070-1080.
• Jang, C., Lacy, T.E., Gwaltney, S.R., Toghiani, H., and Pittman Jr., C.U., 2012, “A Relative Reactivity Volume Criterion for Crosslinking: Application to Vinyl Ester Resin Molecular Dynamics Simulations,” Macromolecules, 45(11), 4876−4885.
• Yohannes, A., Lacy, T.E., and Hwang, Y., 2012, “Hybrid Boundary Element Method for Two Dimensional Linear Elastic Fracture Analysis,” Mechanics of Advanced Materials and Structures, 19(1-3), 129-143.
• Jang, C., Nouranian, S., Lacy, T.E., Gwaltney, S.R., Toghiani, H., and Pittman Jr., C.U., 2012, “Molecular Dynamics Simulations of Oxidized Vapor-Grown Carbon Nanofiber Surface Interactions with Vinyl Ester Resin Monomers,” Carbon, 50(3), 748–760.
• Yu, J., Lacy, T., Toghiani, H., Pittman Jr., C.U., and Schneider, J., 2012, “Determination of Carbon Nanofiber Morphology in Vinyl Ester Nanocomposites,” Journal of Composite Materials, 48(16), 1943-1953.
• Lacy, T.E., Gwaltney, S., Pittman, C.U., Toghiani, H., Jang, C., Nouranian, S., and Yu, J., "Some Key Issues in Multi-Scale Modeling of Thermoset Nanocomposites/Composites," in Tools, Models, Databases, and Simulation Tools Developed and Needed to Realize the Vision of Integrated Computational Materials Engineering, S.M. Arnold and T. Wong (Eds.), ASM International, Materials Park, OH, 2011.
• Yu, J., Lacy, T.E., Toghiani, H., and Pittman, C.U., 2011, “Classical Micromechanics Modeling of Nanocomposites with Carbon Nanofibers and Interphase,” Journal of Composite Materials, 45(23), 2401-2414.
• Du, Y., Zhang, J., Yu, J., Lacy, T.E., Xue, Y., Toghiani, H., Horstemeyer, M.F., and Pittman, C.U., 2011, “Kenaf Bast Fiber Bundle-Reinforced Unsaturated Polyester Composites IV: Effects of Fiber Loadings and Aspect Ratios on Tensile Properties of Kenaf Bast Fiber Bundle-Reinforced Unsaturated Polyester Composites,” Forest Products Journal, 60(7/8), 582–591.
• Nouranian, S., Jang, C., Lacy, T.E., Gwaltney, S.R., Toghiani, H., and Pittman Jr., C.U., 2011, “Molecular Dynamics Simulations of Vinyl Ester Resin Monomer Interactions with a Pristine Vapor-Grown Carbon Nanofiber and Their Implications for Composite Interphase Formation,” Carbon, 49(10), 3219-3232.
• Du, Y., Zhang, J., Xue, Y., Lacy, T.E., Toghiani, H., Horstemeyer, M.F., and Pittman, C.U., 2011, “Kenaf Bast Fiber Bundle-Reinforced Unsaturated Polyester Composites III: Statistical Strength Characteristics and Cost-Performance Analyses,” Forest Products Journal, 60(6), 514-521.
• Nouranian, S., Toghiani, H., Lacy, T.E., Pittman, C.U, 2011, “Dynamic Mechanical Study and Optimization of Vapor-grown Carbon Nanofiber/Vinyl Ester Nanocomposites Using Design of Experiments,” Journal of Composite Materials, 45(16), 1647-1657.
• Du, Y., Zhang, J., Wang, C., Lacy, T.E., Xue, Y., Toghiani, H., Horstemeyer, M.F., and Pittman, C.U., 2010, “Kenaf Bast Fiber Bundle-Reinforced Unsaturated Polyester Composites II: Water Resistance and Composite Mechanical Properties Improvement,” Forest Products Journal, 60(4), 366-372.
• Du, Y., Zhang, J., Toghiani, H., Lacy, T.E., Xue, Y., Horstemeyer, M.F., and Pittman, C.U., 2010, “Kenaf Bast Fiber Bundle-Reinforced Unsaturated Polyester Composites I: Processing Techniques for High Kenaf Fiber Loading,” Forest Products Journal, 60(3), 289-295.
• Sullivan, R., Hwang, Y., Rais-Rohani, M., and Lacy, T., 2009, “Structural Analysis and Testing of an Ultralight UAV Carbon Composite Wing,” AIAA Journal of Aircraft, 46(3), 814-820.
• Yamada, Y., Lacy, T.E., and Luzar, J., 2009, “A Residual Strength Assessment of Modified Transport Aircraft Fuselages,” AIAA Journal of Aircraft, 46(1), 85-94.
• Ingram, J., Zhou, Y, Jeelani, S., Lacy, T., and Horstemeyer, M.F., 2008, “Effect of Strain Rate on Tensile Behavior of Polypropylene and Carbon Nanofiber Filled Polypropylene,” Materials Science & Engineering A, 489 (1), 99-106.
• Zhou, Y., Akanda, S.R., Jeelani, S., and Lacy, T.E., 2007, "Nonlinear Constitutive Equation for Vapor-Grown Carbon Nanofiber-Reinforced SC-15 Epoxy at Different Strain Rate," Materials Science & Engineering A, 465 (1), 238-246.
• Yamada, Y., Lacy, T., Newman, J., Smith, B., and Kumar, B., 2007, “Effects of Crack Closure on Fatigue Crack Growth Predictions for 2024-T351 Aluminium Alloy Panels Under Spectrum Loading,” International Journal of Fatigue, 29(8), 1503-1509.
• Hwang, Y., and Lacy, T.E., 2007, "Numerical Estimates of the Compressive Strength of Impact-Damaged Sandwich Composites," Journal of Composite Materials, 41(2), 367-388.
• Samarah, I.K., Weheba, G.S., and Lacy, T.E., 2006, “Response Surface Characterization of the Mechanical Behavior of Impact-Damaged Sandwich Composites,” Journal of Applied Statistics, 33(4), 429-439.
• Samarah, I.K., Weheba, G.S., and Lacy, T.E., "Characterization of the Effect of Material Configuration and Impact Parameters on Damage Tolerance of Sandwich Composites," 2006 SAE Transactions, Journal of Aerospace, 767-775.
• Cope, D.A. and Lacy, T.E., 2004, "Modeling Mechanical Fasteners in Single-Shear Lap Joints," AIAA Journal of Aircraft, 41(6), 1491-1497.
• Hijazi, A., Lacy, T.E., and Smith, B.L., 2004, "Comparison of Residual Strength Estimates for Bolted Lap-Joint Panels," AIAA Journal of Aircraft, 41(3), 657-664.
• Hijazi, A., Smith, B.L., and Lacy, T.E., 2004, "Linkup Strength of 2024-T3 Bolted Lap Joint Panels with Multiple-Site Damage," AIAA Journal of Aircraft, 41(2), 359-364.
• Lacy, T.E. and Hwang, Y., 2003, "Numerical Modeling of Impact Damaged Sandwich Composites Subjected to Compression After Impact Loading," Composite Structures, 61(1), 115-128.
• Lacy, T.E., Samarah, I.K., and Tomblin, J.S., 2002, "Damage Resistance Characterization of Sandwich Composites Using Response Surfaces," SAE Transactions, Journal of Aerospace, 126-146.
• Lacy, T.E., McDowell, D.L., and Talreja, R., 1999, “Gradient Concepts for Evolution of Damage,” Mechanics of Materials, 31(12), 831-861.
• Lacy, T.E., McDowell, D.L., Willice, P.A., and Talreja, R., 1997, “On Representation of Damage Evolution in Continuum Damage Mechanics,” International Journal of Damage Mechanics, 6(1), 62-95.
• Lacy, T.E., McDowell, D.L., and Talreja, R., 1997, “Effects of Damage Distribution on Evolution,” in Applications of Continuum Damage Mechanics to Fatigue and Fracture, ASTM STP 1315, D.L. McDowell, Ed., American Society for Testing and Materials, 131-149.

• Simsiriwong, J., Sullivan, R., Lacy, T., and Hilton, H., “Viscoelastic Creep Compliance of a Vinyl Ester Polymer with Statistical Distribution Functions,” in the Proceedings of the American Society for Composites 28th Annual Technical Conference, University Park, Pennsylvania, September 9-11, 2013.
• Drake, D., Sullivan, R., Lacy, T., Toghiani, H., Pittman Jr., C.U., DuBien, J., and Nouranian, S., “Viscoelastic Characterization of Vinyl Ester Nanocomposites Using Response Surface Modeling,” to appear in the Proceedings of the American Society for Composites 28th Annual Technical Conference, University Park, Pennsylvania, September 9-11, 2013.
• McWilliams, K., Lacy, T.E., Roy, S., and Jha, R., “Development of an ICME-Based Airframe Digital Twin Model of an All-Composite Air Vehicle,” in the Proceedings of the American Society for Composites 28th Annual Technical Conference, University Park, Pennsylvania, September 9-11, 2013.
• Warren, J., Cole, M., Offenberger, S., Lacy, T.E., Toghiani, H., Burchell, M., Kundu, S., and Pittman Jr., C.U., “Hypervelocity Impact of Honeycomb Core Sandwich Panels Filled with Shear Thickening Fluid,” in the Proceedings of the American Society for Composites 28th Annual Technical Conference, University Park, Pennsylvania, September 9-11, 2013.
• Ricks, T.M., Yu, J., Lacy, T.E., and Sullivan, R.W., “Coupled Multi-Inclusion and Multi-Coating Micromechanics Modeling of Viscoelastic Composite Materials,” in the Proceedings of the American Society for Composites 28th Annual Technical Conference, University Park, Pennsylvania, September 9-11, 2013.
• Ricks, T.M., Lacy, T.E., Bednarcyk, B.A., and Arnold, S.M., “The Effect of Fiber Strength Stochastics and Local Fiber Volume Fraction on Multiscale Progressive Failure of Composites,” in the Proceedings of the American Society for Composites 28th Annual Technical Conference, University Park, Pennsylvania, September 9-11, 2013.
• Ricks, T.M., Lacy, T.E., Pineda, E.J., Bednarcyk, B.A., and Arnold, S.M., “The Effect of Scale Dependent Discretization on the Progressive Failure of Composite Materials Using Multiscale Analyses,” in the Proceedings of the 54th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Boston, Massachusetts, April 8-11, 2013.
• Drake, D.A., Simsiriwong, J., Sullivan, R.W., Toghiani, H., Lacy, T.E., Pittman Jr., C.U., “Creep Characterization of Vinyl Ester Nano-Composites using the Digital Image Correlation Technique,” in the Proceedings of the American Society for Composites 27th Annual Technical Conference, Arlington, Texas, October1-3, 2012.
• Warren, J., Offenberger, S., Lacy, T., Toghiani, H., and Pittman Jr., C.U., “Characterization of Debris Cloud Distribution and Damage Caused by Hypervelocity Impacts on Vapor Grown Carbon Nanofiber Reinforced Laminate Shielding,” in the Proceedings of the American Society for Composites 27th Annual Technical Conference, Arlington, Texas, October1-3, 2012.
• Jang, C., Lacy, T.E., Gwaltney, S.R., Toghiani, H., and Pittman Jr., C.U., “Interfacial Shear Strength of a Cured Vinyl Ester Resin At Graphene Sheets From Molecular Dynamics Simulations,” in the Proceedings of the American Society for Composites 27th Annual Technical Conference, Arlington, Texas, October1-3, 2012.
• Ricks, T.M., Lacy, T.E., Bednarcyk, B.A., and Arnold, S.M., “On the Development of a Damage Tolerance Plan for Multifunctional Composites,” in the Proceedings of the American Society for Composites 27th Annual Technical Conference, Arlington, Texas, October1-3, 2012.
• Lacy, T.E., Yu, J., Axe, J, and Luczak, T., “The Effect of Driver Mass and Shaft Length on Initial Golf Ball Launch Conditions: A Designed Experimental Study,” in the Proceedings of the 9th Conference of the International Sports Engineering Association, Lowell, Massachusetts, July 9-13, 2012. (Peer Reviewed)
• Yu, J., Lacy, T., Toghiani, H., and Pittman Jr., C.U., “Micromechanically Based Effective Thermal Conductivity Estimates for Polymer Nanocomposites,” in the Proceedings of the 53rd AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, April 23-26, 2012.
• Ricks, T.M., Lacy, T., Bednarcyk, B.A., and Arnold, S.M., “A Multiscale Modeling Methodology for Metal Matrix Composites Including Fiber Strength Stochastics,” in the Proceedings of the 53rd AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, April 23-26, 2012.
• Jang, C., Lacy, T., Gwaltney, S.R., Toghiani, H., and Pittman Jr., C.U., "Molecular Dynamics Simulation of Vinyl Ester Resin Crosslinking,” in the Proceedings of the 53rd AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, Hawaii, April 23-26, 2012.
• Yu, J., Lacy, T.E., Toghiani, H., and Pittman Jr., C.U., “Effective Property Estimates for Composites Containing Multiple Nanoheterogeneities,” in the Proceedings of the American Society for Composites 26th Annual Technical Conference, Montreal, Canada, September 26-28, 2011.
• Yu, J., Lacy, T.E., Toghiani, H., and Pittman Jr., C.U., “Micromechanical Modeling of Nanoreinforced Composites with Carbon Nanofibers and Interphase,” in the Proceedings of the American Society for Composites 25th Annual Technical Conference, Dayton, Ohio, September 20-22, 2010.
• Rouhi, M., Rais-Rohani, M., Lacy, T., Garg, M., and Abdi, F., “Mechanical Characterization of Nanofiber Enhanced Polymer with Application to Composite Crush Tubes,” in the Proceedings of the 51st AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Orlando, Florida, May 12-15, 2010.
• Hutchins, J.W., Liu, K.C., Lacy, T., and Chattopadhyay, A., “A Comparison of Triaxially Braided Composites Using the Generalized Method of Cells,” in the Proceedings of the 51st AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Orlando, Florida, May 12-15, 2010.
• Nouranian, S., Toghiani, H., Lacy, T.E., and Pittman Jr., C.U. “Response Surface Study of Vapor-grown Carbon Nanofiber/Vinyl Ester Nanocomposites Fabricated Using High-Shear Mixing Technique,” in the Proceedings of the 24th Annual Technical Conference of the American Society for Composites, Newark, Delaware, September 15-17, 2009.
• Zhou, Y., Jeelani, S., and Lacy, T., “Fabrication and Characterization of Vapor Grown Carbon Nanofiber Reinforced Polyester,” in the Proceedings of the 24th Annual Technical Conference of the American Society for Composites, Newark, Delaware, September 15-17, 2009.
• Nouranian, S., Toghiani, H., Lacy, T.E., and Pittman Jr., C.U. “Viscoelastic Properties of Vapor-grown Carbon Nanofiber/Vinyl Ester Nanocomposites,” in the Proceedings of the International SAMPE Symposium and Exhibition, SAMPE’09, Baltimore, Maryland, May 18-21, 2009.
• Hutchins, J., Sisti, J., Lacy, T., Nouranian, S., Toghiani, H., and Pittman, C.U., “High Strain Rate Behavior of Carbon Nanofiber Reinforced Vinyl Ester,” in the Proceedings of the 50th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Palm Springs, California, May 4-9, 2009.
• Zhou, Y., Shaik, M., Jeelani, S., Lacy, T., and Horstemeyer, M., “Experimental Study on Thermal and Mechanical Properties of Clay Modified Carbon Fiber Reinforced Epoxy,” in the Proceedings of the ASC 23rd Annual Technical Conference, Memphis, Tennessee, September 9-11, 2008.
• Zhou, Y, Jeelani, S., and Lacy, T., “Strain Rate Dependent Behavior of Carbon Nanofiber Filled Polypropylene,” in the Proceedings of the 49th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Schaumburg, Illinois, April 7-10, 2008.
• Sullivan, R.W., Hwang, Y., Rais-Rohani, M., Lacy, T.E., and Wiwattananon, P., “Static Response of a Composite Wing Under a Whiffletree Loading,” in the Proceedings of the ASC 22nd Annual Technical Conference, Seattle, Washington, September 17-19, 2007.
• Yohannes, A., Lacy, T., and Hwang, Y., “Hybrid Boundary Element Method for Two Dimensional Linear Elastic Fracture Analysis,” AIAA Paper AIAA-2007-2378, in the Proceedings of the 48th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Waikiki, Hawaii, April 23-27, 2007.
• Hwang, Y., and Lacy, T.E., “Compression-After-Impact Strength Estimates for Finite Width Sandwich Panels,” in the Proceedings of the ASC/ASTM-D30 Joint 21st Annual Technical Conference, Dearborn, Michigan, September 17-20, 2006.
• Samarah, I.K., Weheba, G.S., and Lacy, T.E., 2006, "Characterization of the Effect of Material Configuration and Impact Parameters on Damage Tolerance of Sandwich Composites," SAE paper 06GATC91 in the Proceedings of the 2006 SAE General Aviation Technology Conference, Wichita, Kansas, August 29-31, 2006. (Peer Reviewed)
• Yamada, Y., Lacy, T., Newman, J., Smith, B., and Kumar, B., “Effects of Crack Closure on Fatigue Crack Growth Predictions for 2024-T351 Aluminium Alloy Panels Under Spectrum Loading,” in the Proceedings of the 2006 International Fatigue Conference, Atlanta, Georgia, May 14-19, 2006.
• Sullivan, R. Rais-Rohani, M., Lacy, T., and Alday, N, “Structural Testing of an Ultralight Composite UAV,” in the Proceedings of the 47th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, Newport, Rhode Island, May 1-4, 2006.
• Yamada, Y., Newman, J., Lacy, T., and Luzar, J., “Prediction of Fatigue Crack Growth for 7075-T7351 Aluminium Alloy Under Various Flight Load Spectra,” in the Proceedings of the 2005 USAF Aircraft Structural Integrity Program Conference, Memphis, Tennessee, November 29–December 1, 2005.
• Hwang, Y., and Lacy, T.E., "Numerical Estimates of the Compressive Strength of Impact-Damaged Sandwich Composites," in the Proceedings of the ASC/ASTM-D30 Joint 19th Annual Technical Conference, Atlanta, Georgia, October 17-20, 2004.
• Hwang, Y., and Lacy, T.E., "Numerical Modeling of Impact Damaged Sandwich Composites Subjected to Compression After Impact Loading," presented at the 14th U.S. National Congress of Theoretical and Applied Mechanics, Blacksburg, Virginia, June 23-28, 2002.
• Boudraa, T., Lacy, T.E., and Hijazi, A., "Critical Crack Tip Opening Angle (CTOA) Determination for Thin Sheet Aluminum Alloy," presented at the SAE General Aviation Technology Conference and Exposition, Wichita, Kansas, 16-18 April 2002.
• Cope, D.A, Lacy, T.E., and Luzar, J., 2002, "Application of Advanced Fracture Mechanics Methods for KC-135 Fuselage Structural Integrity Evaluation," in the Proceedings of the 6th Joint DoD/FAA/NASA Conference on Aging Aircraft, September 16-19, 2002, San Francisco, California.
• Lacy, T.E., Samarah, I.K., and Tomblin, J.S., 2002, "Damage Resistance Characterization of Sandwich Composites Using Response Surfaces," SAE paper 2002-01-1538 in the Proceedings of the 2002 SAE General Aviation Technology Conference, Wichita, Kansas, April 16-18, 2002. (Peer Reviewed)
• Cope, D.A., Lacy, T.E., Clapp, B., and Haroldson, B., "Boundary Effects on Residual Strength Analysis of KC-135 Fuselage Panels," in the Proceedings of the 2001 USAF Aircraft Structural Integrity Program Conference, December 11-13, 2001, Williamsburg, Virginia.
• Cope, D.A., Lacy T.E., Luzar, J., and Horn, W.J., "Residual Strength Assessment of KC-135 Fuselage Panels," in the Proceedings of the 5th Joint DoD/FAA/NASA Conference on Aging Aircraft, September 10-13, 2001, Kissimmee, Florida.
• Cope, D.A, and Lacy T.E., “Modeling Mechanical Fasteners in Lap Joints for Stress Intensity Determination,” in the Proceedings of the 4th Joint DoD/FAA/NASA Conference on Aging Aircraft, St. Louis, Missouri, May 15-18, 2000.
• Lacy, T.E., McDowell, D.L., and Talreja, R., "Non-Local Concepts for Evolution of Damage," presented at the Symposium on Scale Effects in Heterogeneous Materials, ASME International Mechanical Engineering Congress and Exposition, Anaheim, California, November 15-20, 1998.
• Cope, D.A., and Lacy, T.E., "Stress Intensity Determination in Lap Joints with Mechanical Fasteners," in the Proceedings of the 41st AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference, April 3-6, 2000, Atlanta, Georgia.

• Fellow, American Society of Mechanical Engineers (ASME)
• Associate Fellow, American Institute of Aeronautics and Astronautics (AIAA)
• Recipient, 2009 SAE Ralph R. Teetor Educational Award
• President, American Society for Composites, 2015-present
• Vice President, American Society for Composites, 2014-2015
• Recording Secretary, American Society for Composites, 2012-2013
• Chair, Emerging Technologies Division, American Society for Composites, 2009-2011
• Founding university partner/ collaborator, NASA Glenn Multiscale Analysis Center of Excellence
• Named Scientific Advisor, Golf Digest magazine, 2009-present
• Elected to the Bagley College of Engineering’s Academy of Distinguished Teachers, Mississippi State University (MSU), 2008
• Acknowledged in the feature article, “The Hot List,” Golf Digest, February 2012
• Credited in the feature article, “You Don’t Have to be an Athlete to Smash It,” Golf Digest, September 2011
• Acknowledged in the feature article, “The Hot List,” Golf Digest, February 2011
• Acknowledged in the feature article, “The Hot List,” Golf Digest, January 2010
• Acknowledged in the featured review article by V.P. McConnell, “Vinyl Esters Get Radical in Composite Markets,” Reinforced Plastics, November-December 2010
• Inducted into the MSU Link of the Order of the Engineer, 2010
• Elected, Professor of the Year, Department of Aerospace Engineering, MSU, 2007
• Selected to Who's Who in Engineering Education, 2005
• Selected to Who's Who Among America's Teachers, 2002
• Licensed Professional Engineer (Georgia, Mississippi)
• NASA GSRP Fellowship Recipient
• Recipient, National Institute for Aviation Research faculty fellowship, Wichita State University, 1998-2003
• Recipient, 2001 Duane and Velma Wallace Outstanding Educator Award for Excellence in Teaching, Wichita State University