Abstract
Strain-controlled cyclic simple-shear tests were performed on silica sand with radial strain measurements. The specimens were tested under a constant K0 condition and subjected to cyclic loading and post cyclic monotonic loading. Threshold cyclic shear strain, volumetric strain, secant shear modulus, and damping ratio are investigated. Generally, the volumetric strain behavior in this study agreed well with literature findings that were investigated using the conventional cyclic direct simple shear test (without radial constraints). Radial strain during monotonic simple shear (post cyclic loading) was found to be a good parameter in monitoring the onset of flow slide in cohesionless soil. The concept of threshold cyclic shear strain, γt, was adequately applied in assessing the specimen volume change. Dynamic engineering properties, including equivalent shear modulus and damping ratio, were also studied. The damping ratio was found to decrease when the cyclic shear strain amplitude was greater than 2%. Possible reasons for the decrease in damping were explored.
Recommended Citation
X. Kang et al., "Strain-controlled Cyclic Simple Shear Tests on Sand with Radial Strain Measurements," Journal of Materials in Civil Engineering, vol. 28, no. 4, article no. 04015169, American Society of Civil Engineers, Apr 2016.
The definitive version is available at https://doi.org/10.1061/(ASCE)MT.1943-5533.0001458
Department(s)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Cyclic simple shear; Damping ratio; Flow slide; K0, Secant shear modulus; Radial strain; Threshold cyclic shear strain amplitude
International Standard Serial Number (ISSN)
0899-1561
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Society of Civil Engineers, All rights reserved.
Publication Date
01 Apr 2016
