"The determination of the elastic moduli of rock has long been a problem to the geophysicist, mining engineer and the civil engineer. There is a considerable amount of literature on determining Young's modulus by the sonic pulse technique. However, the use of this technique to determine the three elastic constants, Young's modulus, shear modulus, and Poisson's ratio from measurements of both the longitudinal and shear wave velocities presents some difficulties, especially in the method of accurately determining the shear wave velocities.
In this thesis, what is believed to be a new method of measuring shear wave velocities in the laboratory is developed and used with the conventional method of measuring the longitudinal wave velocity to determine the three elastic constants of four rock types. These results are then compared to those obtained by conventional static methods for determining elastic moduli, with the effect of anisotropy of the rocks being considered.
The results by the two methods were in fair agreement for Young's modulus and the shear modulus, however, large unexplained variations in Poisson's ratio were often observed"--Abstract, page ii.
Haas, Charles J.
Rupert, Gerald B., 1930-2016
Davidson, Robert F., 1911-1971
Hansen, Peter G., 1927-2010
M.S. in Mining Engineering
University of Missouri at Rolla
vii, 91 pages
© 1966 James Harold Deatherage, Jr., All rights reserved.
Thesis - Open Access
Rocks -- Testing
Rock mechanics -- Mathematical models
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Electronic OCLC #
Link to Catalog Record
Deatherage, James Harold, "The development of the sonic pulse technique and its comparison with the conventional static method for determining the elastic moduli of rock" (1966). Masters Theses. 5736.