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Energy-Microcrack Growth Measurments for Mortar Cylinders in Compression

Published online by Cambridge University Press:  10 February 2011

E. N. Nagy
Affiliation:
Department of Civil and Environmental Engineering, University of Maine, Orono, ME 04469
E. N. Landis
Affiliation:
Department of Civil and Environmental Engineering, University of Maine, Orono, ME 04469
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Abstract

A high resolution three-dimensional scanning technique called x-ray microtomography was applied to measure internal damage and crack growth in small mortar cylinders loaded in compression. Tomographic scans were made at different load increments in the same specimen. Three-dimensional image analysis was used to measure internal crack growth during each load increment. Load-deformation curves were used to measure the work of the external load on the specimen. Non-recoverable work of load was related to measured crack growth to estimate work of fracture in three dimensions. Initial results indicate a roughly linear relationship between work of load and internal crack area.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Flannery, B. P., Deckman, H. W., Roberge, W. G., and D'Amico, K. L., “Three-Dimensional Xray Microtomography” Science, 237, pp. 14391444, (1987).Google Scholar
2. Deckman, H. W., Dunsmuir, J. H., D'Arnico, K. L., Ferguson, S. R., and Flannery, B. P., “Development of Quantitative X-ray Microtomography,” (Mater. Res. Soc. Proc. 217, Pittsburgh, PA, 1991), pp. 97110 Google Scholar
3. Broek, D., Elementary Engineering Fracture Mechanics, 4th Edition, Martinus Nijhoff Publishers, Boston, (1986).Google Scholar
4. Landis, E. N., Nagy, E. N., Keane, D. T. and Shah, S. P., “Observations of Internal Fracture Progression in Mortar using X-ray Microtomography” in Proc. of the 2nd International Conf. on Nondestructive Testing of Concrete in the Infrastructure, Society for Experimental Mechanics, Bethel, CT, (1996), pp. 5459.Google Scholar