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Type: Journal article
Title: A numerically efficient finite element analysis of reinforced concrete members subjected to blasts
Author: Dragos, J.
Visintin, P.
Wu, C.
Oehlers, D.
Citation: International Journal of Protective Structures, 2014; 5(1):65-82
Publisher: Multi-Science Publishing
Issue Date: 2014
ISSN: 2041-4196
Statement of
Jonathon Dragos, Phillip Visintin, Chengqing Wu and Deric John Oehlers
Abstract: A common approach for predicting member response under blast loading is through the use of a finite element software package. Such an analysis typically requires the implementation of a three dimensional mesh and, therefore, requires significant computational effort. In this paper, it is shown how a displacement based segmental moment-rotation (M/θ) analysis can be used to simulate the cracking and softening behavior of reinforced concrete over a segment of a member using the mechanics of partial interaction and shear friction. It is then shown how the M/θ behavior extracted from the segmental analysis can be simplified into an equivalent one dimensional moment curvature relationship which can then be incorporated into a fast running one dimensional finite element approach to determine the response of reinforced concrete slabs subjected to blast loading. Then, results determined using the approach are compared against those obtained from blast experiments and the numerical efficiency of the model is discussed.
Keywords: blast loading; finite element; concrete softening; tension stiffening arbitrarily
Rights: © Multi-Science Publishing
DOI: 10.1260/2041-4196.5.1.65
Appears in Collections:Aurora harvest 2
Civil and Environmental Engineering publications

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