Influence of Boundary Conditions on Strain Softening in Concrete Compression Test
Publication: Journal of Engineering Mechanics
Volume 119, Issue 12
Abstract
How do boundary conditions influence strain localization in concrete loaded in compression? To answer this question, compressive tests were performed on prismatic specimens of mortar. The blocking or nonblocking of rotation of the top platen of the press and the use or absence of an antifriction system have led us to consider four different boundary conditions. The onset of strain localization and its development in the course of loading are determined by the stereophotogrammetric method. The results obtained show that rotation (when it is free) always starts after the peak load. The postpeak portion of the load‐displacement curve depends to a very large extent on the boundary conditions: the use of an antifriction system increases the mean slope of this part. But, on the other hand, the onset of strain localization occurs at the peak, whatever the boundary conditions.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 119 • Issue 12 • December 1993
Pages: 2369 - 2384
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jan 22, 1992
Published online: Dec 1, 1993
Published in print: Dec 1993
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