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Thermal stress fracture in elastic-brittle materialsThe reported investigation shows that the assessment of the possibility of the thermal fracture of brittle materials depends upon an accurate evaluation of the thermal stresses and the determination of the resulting stress intensity factors. The stress intensity factors can be calculated in a variety of ways ranging from the very precise to approximate, but only for a limited number of geometries. The main difficulty is related to the determination of the thermal stress field because of its unusual character and its dependence upon boundary conditions at points far from the region of thermal activity. Examination of a number of examples suggests that the best visualization of the thermal stresses and any associated fracture can be made by considering the problem to be the combination of thermal and isothermal problems or by considering that the prime effect of the temperature is in the generation of thermal strains and that the thermal stresses are simply the result of the region trying to accommodate these strains.
Document ID
19810064176
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Emery, A. F.
(Washington, University Seattle, WA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Structural Mechanics
Meeting Information
Meeting: International Conference on Thermal Stresses in Materials and Structures in Severe Thermal Environments
Location: Blacksburg, VA
Start Date: March 19, 1980
End Date: March 21, 1980
Accession Number
81A48580
Funding Number(s)
CONTRACT_GRANT: NGL-48-002-004
Distribution Limits
Public
Copyright
Other

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