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Open AccessFeature PaperArticle

Adaptive Crack Modeling with Interface Solid Elements for Plain and Fiber Reinforced Concrete Structures

by Yijian Zhan 1,2 and Günther Meschke 1,*
1
Institute for Structural Mechanics, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
2
Shanghai Construction Group Co., Ltd., Shanghai 200080, China
*
Author to whom correspondence should be addressed.
Materials 2017, 10(7), 771; https://doi.org/10.3390/ma10070771
Received: 28 April 2017 / Revised: 1 July 2017 / Accepted: 3 July 2017 / Published: 8 July 2017
(This article belongs to the Special Issue Computational Mechanics of Cohesive-Frictional Materials)
The effective analysis of the nonlinear behavior of cement-based engineering structures not only demands physically-reliable models, but also computationally-efficient algorithms. Based on a continuum interface element formulation that is suitable to capture complex cracking phenomena in concrete materials and structures, an adaptive mesh processing technique is proposed for computational simulations of plain and fiber-reinforced concrete structures to progressively disintegrate the initial finite element mesh and to add degenerated solid elements into the interfacial gaps. In comparison with the implementation where the entire mesh is processed prior to the computation, the proposed adaptive cracking model allows simulating the failure behavior of plain and fiber-reinforced concrete structures with remarkably reduced computational expense. View Full-Text
Keywords: fiber-reinforced concrete; crack model; interface solid element; finite element method; mesh adaptation; computational efficiency fiber-reinforced concrete; crack model; interface solid element; finite element method; mesh adaptation; computational efficiency
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Zhan, Y.; Meschke, G. Adaptive Crack Modeling with Interface Solid Elements for Plain and Fiber Reinforced Concrete Structures. Materials 2017, 10, 771.

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