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Site Specific Relationship for Strain Dependent Shear Modulus and Damping Using In Situ V S and High Strain Cyclic Test Results
Date
2016-08-18
Author
Zehtab, Kaveh Hassan
Yılmaz, Mustafa Tolga
Metadata
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This study suggests a practical method for estimating site-specific strain dependent shear modulus and damping. The method uses in-situ shear wave velocity measurements and commercial cyclic laboratory tests on higher strains (i.e., 0.5% to 1%) in which the effect of disturbance is less significant. Shear modulus calculated using in-situ shear wave velocity and at higher cyclic shear strain, is used for building a hyperbolic relationship for shear stress and strain. Modified Masing's rule and the experimental hysteretic damping at that higher strain are used to create strain dependent damping relationship. As a result, the effects of sample disturbance on lab test results are reduced, and the number of laboratory tests decreases significantly.
Subject Keywords
Acoustic wave velocity
,
Conservation
,
Damping
,
Elastic moduli
,
Natural resources
,
Seismic response
,
Shear flow
,
Shear stress
,
Shear waves
,
Strain
,
Stress-strain curves
,
Wave propagation
URI
https://hdl.handle.net/11511/72216
https://www.scopus.com/record/display.uri?eid=2-s2.0-84984940596&origin=resultslist&sort=plf-f&src=s&st1=&st2=&sid=8d66d3a3a7cab7689558d5defd47098a&sot=b&sdt=b&sl=143&s=TITLE-ABS-KEY+%28Site+Specific+Relationship+for+Strain+Dependent+Shear+Modulus+and+Damping+Using+In+Situ+V+S+and+High+Strain+Cyclic+Test+Results%29&relpos=0&citeCnt=0&searchTerm=
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Department of Engineering Sciences, Conference / Seminar