Fully coupled nonlinear thermomechanical analysis including general contact in PALM2D [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 7 pages : digital, PDF file
- Additional Creators
- Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Fully coupled thermomechanical analysis solves the thermal problem on the deforming geometry and incorporates thermal loads into the mechanical problem. In contrast, traditional thermal stress analysis is based on an uncoupled approach in which the thermal problem is solved on a fixed geometry, and the resulting temperatures are then used to load a mechanical problem. Thermal contact, in which heat flow paths depend on the mechanical deformations of adjacent surfaces, is a major component of many fully coupled thermomechanical analyses. This paper presents the development of a thermomechanical finite element formulation, including contact. The proposed approach accommodates arbitrarily large relative motions of contact surfaces, fully unstructured meshes, pressure-dependent contact resistance, conduction across small gaps, and approximate models for convection and radiation. The theory described herein has been implemented in the Lawrence Livermore National Laboratory public code PALM2D and has been used to solve a diverse set of thermomechanical problems. Examples illustrating the performance of this code on large deformation thermomechanical problems are presented and discussed.
- Report Numbers
- E 1.99:ucrl-jc--115418
E 1.99: conf-931121--27
conf-931121--27
ucrl-jc--115418 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
10/07/1993.
"ucrl-jc--115418"
" conf-931121--27"
"DE94001661"
Annual winter meeting of the American Society of Mechanical Engineers,New Orleans, LA (United States),28 Nov - 3 Dec 1993.
Whirley, R.G.; Engelmann, B.E. - Funding Information
- W-7405-ENG-48
View MARC record | catkey: 13826734