Accession Number:

ADA162140

Title:

A Model for Predicting Thermomechanical Response of Large Space Structures.

Descriptive Note:

Annual technical rept. Mar 83-Apr 84,

Corporate Author:

TEXAS A AND M UNIV COLLEGE STATION MECHANICS AND MATERIALS RESEARCH CENTER

Personal Author(s):

Report Date:

1984-06-01

Pagination or Media Count:

184.0

Abstract:

It is known that large space structures will be subjected to thermomechanical loadings and environmental conditions which are likely to degrade the constitutive properties of the structural materials, thus leading to possible failure of these vehicles. Therefore, it is desireable to develop new analytical models which are capable of accounting for these degraded properties seo that design procedures can be improved. There are three important aspects of such an effort selection and development oc constitutive models applicable to large space structures, construction of analytical models and experimentation to determine the precise nature of the material parameters to be utilized in the analytical model. These three components of the research must be tied together into a single concise package in order to obtain a useful model. This research project is a three year effort to develop an analytical model capable of predicting the response of space structures with degrading material properties under quasi-static as well as dynamic cyclic thermomechanical loading conditions. Keywords Larger space structures Thermal loads Constitutive properties Finite element methods and Environmental effects.

Subject Categories:

  • Laminates and Composite Materials
  • Metallurgy and Metallography
  • Numerical Mathematics
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE