Volume and Surface Area Distributions of Cracks in Concrete

Authors:
George Nagy;Tong Zhang;W. R. Franklin;Eric Landis;Edwin Nagy;Denis T. Keane
Affiliations:
-;-;-;-;-;-
Venue:
IWVF-4 Proceedings of the 4th International Workshop on Visual Form
Year:
2001

Citing 4
Cited 0

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IEEE Computer Graphics and Applications - Special issue on computer-aided geometric design

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Abstract

Volumetric images of small mortar samples under load are acquired by X-ray microtomography. The images are binarized at many different threshold values, and over a million connected components are extracted at each threshold with a new, space and time efficient program. The rapid increase in the volume and surface area of the foreground components (cracks and air holes) is explained in terms of a simple model of digitization. Analysis of the data indicates that the foreground consists of thin, convoluted manifolds with a complex network topology, and that the crack surface area, whose increase with strain must correspond to the external work, is higher than expected.