A Model for Predicting Thermomechanical Response of Large Space Structures.
Annual technical rept. May 84-Apr 85,
TEXAS A AND M UNIV COLLEGE STATION MECHANICS AND MATERIALS RESEARCH CENTER
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A model is being developed for predicting the thermomechanical response of large space structures to cyclic transient temperature loading conditions. The research is being conducted in the following stages 1 selection and specialization of thermomechanical constitutive equations to be utilized in the analysis of large space structures 2 construction where necessary of coupled energy balance equations modified Fourier heat conduction equations applicable to the constitutive models selected in item 1 3 casting where necessary the resulting field laws into coupled and uncoupled variational principles suitable for use with the finite element method 4 finite element discretization of the variational princicples for several element types 5 experimentation to determine material properties to be utilized in the constitutive models and 6 parametric studies of the quasi-static and dynamic response of large space structures undergoing thermomechanically and environmentally degraded material properties.
- Unmanned Spacecraft