NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Thermal stresses in chemically hardening elastic media with application to the molding processA method has been formulated for the determination of thermal stresses in materials which harden in the presence of an exothermic chemical reaction. Hardening is described by the transformation of the material from an inviscid liquid-like state into an elastic solid, where intermediate states consist of a mixture of the two, in a ratio which is determined by the degree of chemical reaction. The method is illustrated in terms of an infinite slab cast between two rigid mold surfaces. It is found that the stress component normal to the slab surfaces vanishes in the residual state, so that removal of the slab from the mold leaves the remaining residual stress unchanged. On the other hand, the residual stress component parallel to the slab surfaces does not vanish. Its distribution is described as a function of the parameters of the hardening process.
Document ID
19750026296
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Levitsky, M.
(City College New York, N.Y., United States)
Shaffer, B. W.
(New York, Polytechnic Institute, Brooklyn, N.Y., United States)
Date Acquired
August 8, 2013
Publication Date
September 1, 1974
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 74-WA/APM-8
Accession Number
75A10368
Funding Number(s)
CONTRACT_GRANT: NGR-33-016-067
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available