2D Numerical Modeling of the Cyclic Simple Shear Test Using Opensees

Saeedullah Jan Mandokhail, Nawaz Ali, Mohammad Siddique, Ehsanullah Kakar, Ali Nawaz Menga, Ghulamullah Kakar

Abstract


Simple Shear (SS) test is considered to simulate the in-situ stress conditions more accurately than any other testing system. Undrained Cyclic Simple Shear test is extensively performed to evaluate the cyclic shear strength and liquefaction potential of soil. In this study, the numerical modeling of the SS testing was undertaken using a finite element method (FEM) in the Opensees (Open System for Earthquake Engineering Simulation). The study showed that FEM simulation can efficiently capture the cyclic shear behavior and the excess pore water pressure development. The analysis results were also compared with the laboratory measurements and shown to satisfactorily match the measurements.

Keywords


Cyclic shear strength; Liquefaction resistance; Simple shear test; Opensees

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References


Bjerrum L, Landva A (1966). Direct simple-shear tests on a Norwegian quick clay. Geotechnique 16(1):1-20

Drucker DC, Gibson RE, Henkel DJ (2013). Soil mechanics and work hardening theories of plasticity.

Transactions of the American Society of Civil Engineers 122:338-346

Elgamal A, Yang Z, Parra E. (2002). Computational modeling of cyclic mobility and post-liquefaction site

response. Soil Dynamics and Earthquake Engineering. 22(4):259-271

Elgamal A, Yang Z, Parra E, Ragheb A. (2003). Modeling of cyclic mobility in saturated cohesionless

soils. International Journal of Plasticity. 19(6):883-905.

Finn WDL, Bhatia SK, Pickering DJ. (1982). The cyclic simple shear test. Soil Mechanics-Transient and

Cyclic Loads pp:583-607.

Hardin BO, Richart JR FE. (1963). Elastic wave velocities in granular soils. Journal of the Soil Mechanics

and Foundations Division, ASCE 89 :33-65.

Ishihara K, Yamazaki F (1980) Cyclic simple shear tests on saturated sand in multi-directional loading.

Soils and Foundations 20(1):45-59

Mandokhail SJ. (2017). Development of Normalized Liquefaction Resistance Curve for Granular Soil

and Application to Effective Stress Site Response Analysis. PhD Thesis, Hanyang University, Seoul,

South Korea.

Mandokhail SJ, Park D, Yoo JK. (2017). Development of normalized liquefaction resistance curve for

clean sands. B Earthq Eng 15 (3):907-929.

Mazzoni S, McKenna F, Fenves GL. (2010). OpenSees Getting started manual. Online manual

Mazzoni S, McKenna F, Scott MH, Fenves GL, Jeremic B. (2007). OpenSees command language manual.

Pacific Earthquake Engineering Research Center, University of California, Berkeley

Prevost JH. (1985). A simple plasticity theory for frictional cohesionless soils. International Journal of

Soil Dynamics and Earthquake Engineering 4 (1):9-17

Yang Z, Elgamal A, Parra E. (2003). Computational model for cyclic mobility and associated shear

deformation. Journal of Geotechnical and Geoenvironmental Engineering. ASCE 129(12):1119-1127.



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