3D Nonlinear Parallel FEM for Analyzing Dynamic Response of the Large- Scale Saturated Soil Layers-Civil Structures Interaction Problem (Part II: Validation and Performance)

Jafril Tanjung

doi:10.5614/jts.2010.17.3.1

Authors

Jafril Tanjung Civil Engineering Department, Engineering Faculty, Andalas University, Padang

DOI:

https://doi.org/10.5614/jts.2010.17.3.1

Keywords:

3D nonlinear FEM, Parallel computation, Domain decomposition method, Saturated soil layers-civil Structure interaction problem.

Abstract

Abstract. In this second paper, a validation and performance of the nonlinear parallel FEM proposed in the first paper are evaluated. An experimental model for investigating a seismic earth pressure has been simulated for numerically validation purpose. The numerical results for the seismic active earth pressure parameters and dynamic pore water pressure acting on the wall coincide well with those of the experiment. The efficiency of the parallel computation was made clear by the comparison of the executing time for the different size of models. The results in this numerical
analysis suggests the relation between the seismic active earth pressure and the dynamic pore water pressure acting on the wall for a saturated soil layer.

Abstrak. Dalam makalah kedua ini akan dievaluasi keabsahan dan kinerja paralel elemen hingga non-linier yang dijabarkan dalam makalah pertama. Untuk maksud tersebut, model eksperimental untuk menganalisis perilaku seismik tekanan tanah, telah disimulasikan. Hasil analisis numerik menunjukkan bahwa nilai parameter seismik untuk tekanan tanah dan tekanan dinamik air pori yang bekerja pada dinding penahan tanah, sesuai dengan yang diamati dalam pengujian laboratorium. Efisiensi komputasi secara paralel ditunjukkan dengan membandingkan waktu yang diperlukan untuk menganalisis beberapa model dengan ukuran yang berbeda. Hasil analisis juga memberi gambaran tentang hubungan antara tekanan seismic tanah dan tekanan air pori yang bekerja pada dinding penahan lapisan tanah jenuh.

References

Beer, G., 1985, An Isoparametric Joint/Interface Element for Finite Element Analysis, Int. Journal Num. Meth. Engg., Vol. 21, pp.585-600.

Been, K., at.al., 1991, The Critical State of Sands, Geotechnique, Vol. 41, No. 3, pp. 365-381.

Crouch, R.S. and Wolf, J.P., 1994a, Unified 3D Critical State Bounding Surface Plasticity Model for Soils incorporating Continues Plasticity Loading Under Cyclic Path, Constitutive Relations, Int.

Journal Num. Anal. Met., Geomech. Vol. 18, pp, 735-758.

Crouch, R.S. and Wolf, J.P., 1994b, Unified 3D Critical State Bounding Surface Plasticity Model for Soils incorporating Continues Plasticity Loading Under Cyclic Path, Calibration and Simulation,

Int. Journal Num. Anal. Met., Geomech. Vol. 18, pp. 759-784.

Geist, Al. et. Al., 1996, PVM, Parallel Virtual Machine, A User's Guide and Tutorial for Networked Parallel Computing, Massachusetts: The MIT Press.

Hughes, T.J.R., 1996, The Finite Element Method: Linear Static and Dynamic Finite Element Analysis, New Jersey: Prentice Hall.

Hazarika, H. and Matsuzawa, H., 1997, Coupled Shear Band Method and Its Application to Seismic Earth Pressure Problem, Soils and Foundation, JSSMFE, Vol. 37, No. 3, pp. 65-77.

Ishihara, K., 1996, Soil Behavior in Earthquake Geotechnics, Oxford: Clarendon Press.

Kawamura, M., 1979, Studies on Lateral Earth Pressures on Retaining Walls during Earthquakes and Heavy Rainfalls (in Japanese), Dissertation of Dr. Eng., Nagoya: Nagoya University.

Pradhan, B.S., at.al., 1989, Experimental Stress-Dilatancy Relations of Sand Subjected to Cyclic Loading, Soil and Foundations, JSSMFE, Vol. 29. No.1 pp. 45-64.

Press, W.H., et al., 1995, Numerical Recipes in FORTRAN, Melbourne: Cambridge University Press.

Silverio, C.J., at.al., 1994, Fortran 77 Programmer's Guide, Document Number 007-0711-060, Silicon Graphics, Inc.

Tanjung, J., 2010, 3D Nonlinear Parallel FEM for Analyzing Dynamic Response of a Large-Scale Saturated Soil Layers-Civil Structures Interaction Problem (Part I: Formulation and its Numerical

Solution), Bandung: Jurnal Teknik Sipil ITB, Vol. 17 No. 2, pp. 81-90.

Toki, K. at.al., 1981, Separation and Sliding Between Soil and Structure During Strong Ground Motion, Earthquake Engg. Struc. Dyn., Vol. 9, pp. 263-277.

Zienkiewicz, O.C and T. Shiomi, 1984, Dynamic Behavior of Saturated Porous Material, The Generalized Biot Formulation and Its Numerical Solution, Int. J. Num. Anal. Meth. Geomech., Vol. 8, pp. 71-96.