Finite element thermo-viscoplastic analysis of structures undergoing thermally induced large deflections Conference Paper uri icon


  • This paper uses the finite element method to model the rate-dependent thermoviscoplastic response of structural members subjected to intense thermal loading. A total Lagrangian formulation for small strains and large deflections of thin plates is employed along with the Bodner-Partom directional hardening viscoplastic constitutive relations for nonlinear material behavior. The analysis accounts for inertial effects of transient thermal loading and resulting viscoplastic damping of thermally induced vibrations. Example problems are presented showing the effects of thermally induced vibrations and resulting viscoplastic damping. The present analysis is focused on initially straight beams and flat plates, but is intended for later application to three dimensional assemblies of plate elements to model curved structures such as the leading edges of the National Aerospace Plane (NASP) where high transient temperature gradients are expected.

published proceedings

  • American Society of Mechanical Engineers, Applied Mechanics Division, AMD

author list (cited authors)

  • Byrom, T. G., & Allen, D. H.

complete list of authors

  • Byrom, TG||Allen, DH

publication date

  • December 1991