FEATS computer code uses finite element analysis to calculate steady state temperature and thermal stress fields for either axisymmetric or plane two-dimensional bodies with boundary conditions, including specified displacements, loads, and thermal boundary conditions

Swanson, J. A.

English

NASA Technical Reports Server

February 1971	 Brief 71-10038 
•	
ICY cD.
AEC-NASA TECH BRIEF 
YES	 Space Nuclear Si'stenis 0//ice 
AEC-NASA Tech Briefs announce new technology derived from the research and development program of the U.S. 
AEC or from AEC-NASA interagency efforts. They are issued to encourage commercial application. Tech Briefs are 
available on a subscription basis from the National Technical Information Service, Springfield, Virginia 22151. Requests 
for individual copies or questions relating to the Tech Brief program may be directed to the Technology Utilization 
Office, NASA, Code KT, Washington, D.C. 20546. 
(FEATS) Finite Element Thermal Stress Analysis of Plane

or Axisymmetric Solids 
The problem: 
To obtain the following: (I) a two-dimensional 
steady state temperature distribution and the resulting 
thermal stress distribution in a plane or axisymmetric 
solid body, and (2) contour plots of the resulting dis-
tributions. 
The solution: 
The FEATS computer code, developed to solve the 
two-dimensional thermal stress problem. 
How it's done: 
The FEATS computer code uses finite element anal-
ysis to calculate the steady state temperature and stress 
fields for either axisymmetric or plane two-dimen-
sional bodies with boundary conditions, including 
specified displacements, loads, and thermal boundary 
conditions. 
The program was designed to be a general purpose 
code for solving linear and bi-linear stress-strain 
problems, thermal stress and temperature fields. The 
program allows the calculation of temperature dis-
tributions for materials in which the thermal conduc-
tivity is a function of temperature. The code will also
calculate the axial stress in plane strain type bodies 
which are free to warp. 
Notes: 
The code is available with capacities of up to 3000 
nodal points and 2000 elements. A direct solution 
method which gives accurate results with reasonable 
computer times is used. 
This program is written in FORTRAN IV and 
Assembly languages for use on the IBM 360/75 
or CDC 6600 computers. 
Inquiries concerning this program may be directed 
to:
COSMIC 
Barrow Hall 
University of Georgia 
Athens, Georgia 30601 
Source: John A. Swanson of

Westinghouse Astronuclear Laboratory
under contract to

AEC-NASA Space Nuclear Systems Office

(NUC-10242) 
Category 09 
This document was prepared under the sponsorship of the Atomic 	 liability resulting from the use of the information contained in this 
Energy Commission and/or the National Aeronautics and Space document, or warrants that the use of any information, apparatus, 
Administration. Neither the United States Government nor any per- 	 method, or process disclosed in this document may not infringe pri-
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FEATS - Finite element thermal stress analysis of plane or axisymmetric solids

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