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Application of PML to Analysis of Dam-Reservoir-Foundation System with Cavitation Using Mixed Formulation

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Abstract:

Convolution PML is known to have excellent wave absorbing capability, and has been used combined with FDM and FEM. Most of them are splitting type formulation for explicit FEM or FDM. Here implicit non-splitting type convolution PML procedures consistent with mixed formulation FEM as well as displacement based FEM are developed. The resulting coefficient matrices for convolution PML are symmetric if corresponding coefficient matrices of FEM are symmetric. The developed method is applied to dam-reservoir-foundation systems including reservoir cavitation, and the validity of the method is demonstrated.

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Periodical:

Applied Mechanics and Materials (Volumes 256-259)

Pages:

427-440

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.256-259.427

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Online since:

December 2012

Authors:

Pahaiti Leheman, Hiroo Shiojiri, Kunihiko Uno

Keywords:

Cavitation, Convolution PML, Dam-Reservoir-Foundation Interaction, Mixed Formulation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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