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Resizing procedure for optimum design of structures under combined mechanical and thermal loadingAn algorithm is reported for resizing structures subjected to combined thermal and mechanical loading. The algorithm is applicable to uniaxial stress elements (rods) and membrane biaxial stress members. Thermal Fully Stressed Design (TFSD) is based on the basic difference between mechanical and thermal stresses in their response to resizing. The TFSD technique is found to converge in fewer iterations than ordinary fully stressed design for problems where thermal stresses are comparable to the mechanical stresses. The improved convergence is demonstrated by example with a study of a simplified wing structure, built-up with rods and membranes and subjected to a combination of mechanical loads and a three dimensional temperature distribution.
Document ID
19760011442
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Adelman, H. M. (NASA Langley Research Center Hampton, VA, United States)
Narayanaswami, R. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1976
Subject Category
Structural Mechanics
Report/Patent Number
NASA-TM-X-72816
Accession Number
76N18530
Funding Number(s)
PROJECT: RTOP 743-01-11-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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