Effect of Soil Plasticity on Cyclic Response

Hysteresis loops for Gulf of Mexico clay undergoing a CTX test. (From Chaney, R.C., and Fang, H.Y., Static and dynamic properties of marine sediments. Proceedings of the Symposium on Marine Geotechnology and Nearshore/ Offshore Structures, Shanghai, China, ASTM STP 923, pp. 74-111, 1986. Reprinted with permission. Copyright ASTM.) 

Schematic illustration of degraded backbone curves. (After Moses, G.G., and Rao, S.N., Marine Georesour. Geotech., 21,37-62,2003. Reprinted with permission of Taylor Francis Group.) 

Degraded backbone curves with actual shear stress-strain data points and the fitted hyperbolic curve. (After Pamukcu, S., and Suhayda, I.N., Evaluation of shear modulus for soft marine clays, Mississippi Delta, In Strength Testing of Marine Sediments Laboratory and In-Situ Measurements, ASTM STP 883, eds. R. C. Chaney and K. R. Demars, 352-362,1984. Reprinted with permission. Copyright ASTM.) 

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Vucetric, M., and Dobry, R. 1991. Effect of Soil Plasticity on Cyclic Response. Journal of Geotechnical Engineering, ASCE, Vol. 117, No. 1, pp. 89-107. 

Ishibashi I (1992) Discussion to effect of soil plasticity on cyclic response , by M. Vucetic and R. Dohry. J Geotech Eng ASCE 118(5) 830-832 Itasca Consulting Group Inc. (2002) ELAC — Fast Lagrangian Analysis of Continua. Minneapolis. User s manual... 

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