Microtomographic Measurements of Internal Damage in Portland-Cement-Based Composites
Publication: Journal of Aerospace Engineering
Volume 10, Issue 1
Abstract
The internal cracking patterns of a series of small mortar specimens were observed using a technique called X-ray microtomography. The experiments were arranged such that three-dimensional images of internal cracks could be made at several different times during the load history of the sample. This arrangement allowed progressive crack growth to be observed at micron-scale resolution in a single specimen. The specimens were loaded in compression. Image processing routines were used to make quantitative measurements of internal crack growth and damage progression. Preliminary measurements indicate that the maximum increase in crack area occurs around the peak load. Three-dimensional renderings qualitatively illustrate features of internal cracking such as the effects of different microstructural features.
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 10 • Issue 1 • January 1997
Pages: 2 - 6
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Jan 1, 1997
Published in print: Jan 1997
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