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Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements

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  • Jianwen Pan

Abstract

A finite element (FE) approach with zero-thickness cohesive interface elements is presented to simulate collapse of continuum structures. The element removal technique merged with the general contact algorithm is adapted in the FE approach to achieve modeling for a transition from continua to discontinua, that is, fracture, fragmentation, and collapse. Collapse process of Meihua masonry arch dam, which is a famous disaster in dam engineering in China, is simulated and the failure mechanism is studied. The collapse process obtained from the presented procedure coincides with the field observation after the dam failure. The failure of Meihua arch dam can be attributed to reducing shear strength of the peripheral joint between the dam body and the concrete pedestal by daubing a layer of asphalt there. With low sliding resistance strength, the masonry dam body may slide upwards along the peripheral joint under hydrostatic pressure, leading to weakening of the arch action, fracturing, and final collapse of the dam.

Suggested Citation

  • Jianwen Pan, 2015. "Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-8, May.
    • Handle: RePEc:hin:jnlmpe:139586
    DOI: 10.1155/2015/139586
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