Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements
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 discon...
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2015-01-01
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Series: | Mathematical Problems in Engineering |
Online Access: | http://dx.doi.org/10.1155/2015/139586 |
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doaj-df22d768f0ac4d2986c9ca99ce2cd0432020-11-25T01:05:13ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472015-01-01201510.1155/2015/139586139586Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface ElementsJianwen Pan0State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, ChinaA 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.http://dx.doi.org/10.1155/2015/139586 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jianwen Pan |
spellingShingle |
Jianwen Pan Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements Mathematical Problems in Engineering |
author_facet |
Jianwen Pan |
author_sort |
Jianwen Pan |
title |
Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements |
title_short |
Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements |
title_full |
Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements |
title_fullStr |
Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements |
title_full_unstemmed |
Collapse Modeling of a Masonry Arch Dam Using the Cohesive Interface Elements |
title_sort |
collapse modeling of a masonry arch dam using the cohesive interface elements |
publisher |
Hindawi Limited |
series |
Mathematical Problems in Engineering |
issn |
1024-123X 1563-5147 |
publishDate |
2015-01-01 |
description |
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. |
url |
http://dx.doi.org/10.1155/2015/139586 |
work_keys_str_mv |
AT jianwenpan collapsemodelingofamasonryarchdamusingthecohesiveinterfaceelements |
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