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Paper VI.1

Effect of Fluid Bulk Modulus Variation on the Critical Time Step for Dynamic Analysis of Saturated Soil using an Explicit U-W Scheme

A.H.C. Chan, O.O. Famiyesin and D. Muir Wood

Department of Civil Engineering, University of Glasgow, Glasgow, Scotland

doi:10.4203/ccp.15.6.1

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A.H.C. Chan, O.O. Famiyesin, D. Muir Wood, "Effect of Fluid Bulk Modulus Variation on the Critical Time Step for Dynamic Analysis of Saturated Soil using an Explicit U-W Scheme", in B.H.V. Topping, (Editor), "Developments in Civil & Construction Engineering Computing", Civil-Comp Press, Edinburgh, UK, pp 141-152, 1993. doi:10.4203/ccp.15.6.1

Abstract

Inherent in the fully explicit u-w formulation is the critical time step, which serves as a threshold for the stability of the scheme. This critical time step is theoretically shown, under one dimensional elastic conditions, to bear an inverse square root relationship with the fluid bulk modulus. The effect of varying the fluid bulk modulus on the critical time steps, and consequently the CPU times is investigated. The accuracy of the solutions is compared with results obtained from a centrifuge experiment.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 15 DEVELOPMENTS IN CIVIL & CONSTRUCTION ENGINEERING COMPUTING Edited by: B.H.V. Topping Paper VI.1 Effect of Fluid Bulk Modulus Variation on the Critical Time Step for Dynamic Analysis of Saturated Soil using an Explicit U-W Scheme A.H.C. Chan, O.O. Famiyesin and D. Muir Wood Department of Civil Engineering, University of Glasgow, Glasgow, Scotland doi:10.4203/ccp.15.6.1 purchase the full-text of this paper Full Bibliographic Reference for this paper A.H.C. Chan, O.O. Famiyesin, D. Muir Wood, "Effect of Fluid Bulk Modulus Variation on the Critical Time Step for Dynamic Analysis of Saturated Soil using an Explicit U-W Scheme", in B.H.V. Topping, (Editor), "Developments in Civil & Construction Engineering Computing", Civil-Comp Press, Edinburgh, UK, pp 141-152, 1993. doi:10.4203/ccp.15.6.1 Abstract Inherent in the fully explicit u-w formulation is the critical time step, which serves as a threshold for the stability of the scheme. This critical time step is theoretically shown, under one dimensional elastic conditions, to bear an inverse square root relationship with the fluid bulk modulus. The effect of varying the fluid bulk modulus on the critical time steps, and consequently the CPU times is investigated. The accuracy of the solutions is compared with results obtained from a centrifuge experiment. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £55 +P&P)
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