Apparatus to Determine Static and Dynamic Elastic Moduli

Howarth, D. F. (1984) Apparatus to Determine Static and Dynamic Elastic Moduli. Rock Mechanics and Rock Engineering, 17 4: 255-264. doi:10.1007/BF01032338

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Author Howarth, D. F.
Title Apparatus to Determine Static and Dynamic Elastic Moduli
Journal name Rock Mechanics and Rock Engineering   Check publisher's open access policy
ISSN 0723-2632
Publication date 1984-10-01
Sub-type Other
DOI 10.1007/BF01032338
Open Access Status File (Author Post-print)
Volume 17
Issue 4
Start page 255
End page 264
Total pages 10
Publisher Springer-Verlag
Language eng
Subject 260200 Geophysics
290000 Engineering and Technology
290700 Resources Engineering
291800 Interdisciplinary Engineering
260100 Geology
Abstract Conclusions 1. The apparatus makes it possible to concurrently measure ES and ED of cylindrical rock specimens under triaxial conditions in the NX Hoek cell. 2. Accuracy of the apparatus is comparable to usual dynamic modulus testing. 3. Preliminary test results for one particular rock type, show that under triaxial conditions the differences between E D and E S are smaller at high confining pressures than at low confining pressures. Circumstantial evidence suggests that microcracks and microfissures are responsible for this phenomenon. Further work needs to be undertaken in other rock types to substantiate these preliminary findings.
Keyword geological
elastic moduli
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Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Citation: Howarth, D.F. (1984) Apparatus to Determine Static and Dynamic Elastic Moduli. Rock Mechanics and Rock Engineering 17(4):255-264. DOI: 10.1007/BF01032338 Copyright 1984 Springer-Verlag. All rights reserved. The original publication is available at

Document type: Journal Article
Sub-type: Other
Collection: School of Mechanical & Mining Engineering Publications
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Created: Tue, 20 Dec 2005, 10:00:00 EST by Dominic Howarth on behalf of Research Management Office