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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Main Author:	Jianwen Pan
Format:	Article
Language:	English
Published:	Hindawi Limited 2015-01-01
Series:	Mathematical Problems in Engineering
Online Access:	http://dx.doi.org/10.1155/2015/139586

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

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