Probabilistic Approach to Predict Cracking in Lightly Reinforced Microconcrete Panels
Publication: Journal of Engineering Mechanics
Volume 130, Issue 8
Abstract
The ultimate strength of structures made of brittle materials—such as microconcrete—strongly depends on microstructural defects, the structure size, and the loading pattern. Probabilistic approaches allow one to take account of such dependencies. By using a Weibull model, cracking of ferrocement panels is analyzed. Provided the behavior of the reinforcement remains elastic, it is shown that the Weibull parameters identified on unreinforced microconcrete samples tested in flexure may be used to predict multiple cracking in ferrocement panels tested in tension. A key aspect of the analysis is related to the understanding and modeling of the stress heterogeneity effect on the local failure probability of unreinforced as well as reinforced microconcrete by the use of a so-called Weibull stress.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 130 • Issue 8 • August 2004
Pages: 931 - 941
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Sep 4, 2002
Accepted: Dec 17, 2003
Published online: Jul 15, 2004
Published in print: Aug 2004
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