Rock properties and their effect on thermally induced displacements and stresses
A discussion is given of the importance of material properties in the finite-element calculations for thermally induced displacements and stresses resulting from a heating experiment in an in-situ granitic rock, at Stripa, Sweden. Comparisons are made between field measurements and finite element method calculations using (i) temperature independent, (ii) temperature dependent thermal and thermomechanical properties, and (iii) in-situ and laboratory measurements for Young's modulus. The calculations of rock displacements are influenced predominantly by the temperature dependence of the thermal expansion coefficient, whereas the dominant factor affecting predictions or rock stresses is the in-situ modulus.
- Research Organization:
- Atomic Energy of Canada, Ltd., Pinawa, Manitoba
- OSTI ID:
- 6176842
- Journal Information:
- J. Energy Resour. Technol.; (United States), Journal Name: J. Energy Resour. Technol.; (United States) Vol. 104:4; ISSN JERTD
- Country of Publication:
- United States
- Language:
- English
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Thermomechanical modeling and data analysis for heating experiments at Stripa, Sweden
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12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
58 GEOSCIENCES
580300* -- Mineralogy
Petrology
& Rock Mechanics-- (-1989)
BENCH-SCALE EXPERIMENTS
CALCULATION METHODS
EUROPE
EXPANSION
FINITE ELEMENT METHOD
MECHANICS
NUMERICAL SOLUTION
PHYSICAL PROPERTIES
ROCK MECHANICS
ROCKS
SCANDINAVIA
STRESSES
SWEDEN
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
THERMAL EXPANSION
THERMAL STRESSES
THERMODYNAMIC PROPERTIES
WESTERN EUROPE