Dr. Thomas Wilt


 

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Research Associate/Part-Time Faculty, Department of Civil Engineering

  • Ph.D.Civil Engineering (Computational Mechanics Major), May 1992, The University of Akron.
    Dissertation: Linear and Nonlinear Finite Element Analysis of Laminated Composite Structures At High Temperatures.
  • M.S. Civil Engineering, The University of Akron, Akron, Ohio.
    Masters thesis: Computational Simulation of Composite Structures With and Without Damage.
  • B.S. Civil Engineering, The University of Akron, Akron, Ohio.

Phone: (330) 972-8628
E-mail – smtew@dune.ascn3.uakron.edu


Experience

  • 1994 – Present, Part-Time Faculty, Department of Civil Engineering, and University of Akron Research Associate, NASA Glenn Cooperative Grant.
  • 1991 – 1992, University of Toledo Onsite Resident Research Associate at NASA Glenn Research Center.
  • 1986 – 1991, Research Assistant, NASA Glenn Research Center/The University of Akron Fellowship Program

Courses:

  • Introduction to Mechanics of Solids
  • Theory of Structures

Research Projects:

  • Micromechanics Analysis Code, MAC, for the analysis of composites on a micromechanics level. MAC is currently in use by such companies as Allison, Battelle, Goodyear.
  • Implementation of plastic and viscoplastic continuum-based and micro-mechanics-based constitutive models for anisotropic materials into commercial finite element codes, MARC and ABAQUS:
    • Creep models.
    • Implicit integration of viscoplastic models with consistent tangent stiffness.
    • Micromechanics constitutive models.
  • Development of software used to optimize the selection of the material constants in viscoplastic constitutive models, COMPARE
  • Computationally coupled fatigue-damage model into the finite element code MARC.

Awards

  • NASA Software of the Year Award, Runner-up, for: The Generalized Method of Cells/Micromechanics Analysis Code, GMC/MAC.

Publications

  • A.F. Saleeb, S.M. Arnold, M.G. Castelli, T.E. Wilt, and W. Graf, “A General Hereditary Multimechanism-Based Deformation Model With Application to The Viscoelastoplastic Response of Titanium Alloys”, International Journal of Plasticity, to appear.
  • A.F. Saleeb, T.E. Wilt, and W. Li, “Robust Integration Schemes for Generalized Viscoplasticity with Internal-State Variables”, Computers and Structures, Vol. 74, 2000, pp. 601-628.
  • A.F. Saleeb, T.E. Wilt, and W. Li, “An Implicit Integration Scheme For Generalized Viscoplasticity with Dynamic Recovery”, Computational Mechanics, Vol. 21, n. 6, 1999, pp. 429-440.
  • T. E. Wilt, S. M. Arnold and A. F. Saleeb, “A Coupled/Uncoupled Computational Scheme For Deformation and Fatigue Damage Analysis of Unidirectional MMC’S”, ASTM Conference: Applications of Continuum Damage Mechanics To Fatigue and Fracture, STP1315, Orlando Florida, May 1996.
  • T. E. Wilt and S. M. Arnold, “Micromechanics Analysis Code (MAC): User Guide 2.0”, NASA TM 107290, 1996.
  • S. M. Arnold, M. J. Pindera, and T. E. Wilt, “Influence of Fiber Architecture on the Inelastic Response of Metal Matrix Composites”, Int. J. Plasticity, Vol. 12, No. 4, pp.507-545, 1996.
  • S. M. Arnold, A. F. Saleeb, and T. E. Wilt, “A Modeling Investigation of Thermal and Strain Induced Recovery and Nonlinear Hardening in Potential Based Viscoplasticity”, J. Engng. Mater. Tech., Vol. 117, April 1995, pp. 157-167.
  • T. E. Wilt, “On The Finite Element Implementation of The Generalized Method of Cells Micromechanics Constitutive Model”, NASA CR 195451, 1995.
  • T. E. Wilt and S. M. Arnold, “Micromechanics Analysis Code (MAC): User Guide 1.0”, NASA TM 106706, 1994.
  • S. M. Arnold, T. E. Wilt, M. J. Pindera, “Influence of Fiber Architecture on The Elastic and Inelastic Response of Metal Matrix Composites”, NASA TM 106705, 1994.
  • S. M. Arnold, T. E. Wilt, M. J. Pindera, “Impact of Fiber Architecture on The Inelastic Response of Metal Matrix Composites Via The Generalized Method of Cells (GMC)”, Proceedings of the 7th Annual HITEMP Review, October 1994.
  • T. E. Wilt and S. M. Arnold, “A Coupled/Uncoupled Deformation and Fatigue Damage Algorithm Utilizing the Finite Element Method”, NASA TM 106526, March 1994.
  • T. E. Wilt and S. M. Arnold, “A Computationally-Coupled Deformation and Damage Finite Element Methodology”, Proceedings of the 6th Annual HITEMP Review 1993, Vol. II, NASA CP 19117, pp.35:1-15.
  • S. M. Arnold, T. E. Wilt, A. F. Saleeb, and M. G. Castelli, “An Investigation of Macro and Micromechanical Approaches For A Model MMC System”, Proceedings of the 6th Annual HITEMP Review 1993, Vol. II, NASA CP 19117, pp.52:1-12.
  • S. M. Arnold, A. F. Saleeb, and T. E. Wilt, “A Modeling Investigation of Thermal And Strain Induced Recovery and Nonlinear Hardening in Potential Based Viscoplasticity”, NASA TM 106122, March 1993.
  • S. M. Arnold, and T. E. Wilt, “A Deformation And Life Prediction Of A Circumferentially Reinforced SiC/Ti 15-3 Ring”, DE-Vol. 55, Reliability, Stress Analysis and Failure Prevention, Ed. R. J. Schaller, 1993, pp. 231-238.
  • A. F. Saleeb, and T. E. Wilt, “Analysis of The Anisotropic Viscoplastic-Damage Response of Composite Laminates-Continuum Basis and Computational Algorithms”, Int. J. Numer. Meth. in Engng., Vol. 36, pp. 1629-1660, 1993.
  • S. M. Arnold, T. E. Wilt, “Influence of Engineered Interfaces On Residual Stresses and Mechanical Response In Metal Matrix Composites”, NASA TM 105438, March 1992.
  • T. E. Wilt, A. F. Saleeb, and T. Y. Chang, “A Mixed Element For Laminated Plates and Shells”, J. of Comput. & Struct., Vol. 37, pp. 597-613, 1990.
  • A. F. Saleeb, T. Y. P. Chang, T. Wilt, I. Iskovitz, “On Finite Element Implementation and Computational Modeling of High Temperature Composites”, NASA CR 185120, 1989.
  • T. E. Wilt, P. L. N. Murthy, and C. C. Chamis, “Fracture Toughness Computational Simulation of General Delaminations in Fiber Composites”, Journal of Reinforced Plastics and Composites, Vol. 8, January 1989.

 

For information concerning this page please send an e-mail to Dan Trowbridge at trowbridge@uakron.edu
This page was modified by Dan Trowbridge,//