Research Article
Sep 1976
Effects of Straining on Shear Modulus of Clays
Publication: Journal of the Geotechnical Engineering Division
Volume 102, Issue 9
Abstract
High strain amplitude resonant column tests were conducted on hollow cylindrical samples of five natural cohesive soils and one artificially prepared bentonite silica flour mixture to assess affects of shearing strain amplitude and repetitions of shearing strain on dynamic shear modulus. Results of these tests show that: (1)A threshold level for strain exists below which the modulus is virtually independent of strain or number of cycles of strain; (2)cycles of strain cause a progressive decrease in modulus when strain amplitude exceeds a threshold level; (3)cycling above a threshold level causes a decrease in low-amplitude modulus measured immediately after the end of the high-amplitude cycling; and (4)a time-dependent increase in low-amplitude modulus occurs if additional cycles of high-amplitude strain are not applied. Cycle and post-straining effects are then empirically related to strain amplitude, number of repetitions of strain, and time.
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Published In
Journal of the Geotechnical Engineering Division
Volume 102 • Issue 9 • September 1976
Pages: 975 - 987
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Sep 1976
Published online: Feb 11, 2021
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Authors
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Donald G. Anderson, AM.ASCE
Project Engr., Fugro, Inc., Consulting Engrs. and Geologists, Long Beach, Calif
Frank E. Richart Jr., F.ASCE
Prof. of Civ. Engrg.; Univ. of Michigan, Ann Arbor, Mich
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.