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Cohesive crack modeling of influence of sudden changes in loading rate on concrete fracture

Tandon, S. and Faber, K. T. and Bažant, Zdeněk P. and Li, Yuan N. (1995) Cohesive crack modeling of influence of sudden changes in loading rate on concrete fracture. Engineering Fracture Mechanics, 52 (6). pp. 987-997. ISSN 0013-7944. https://resolver.caltech.edu/CaltechAUTHORS:20140908-181326961

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Abstract

The results of an experimental study of a sudden change in loading rate on the fracture behavior of normal- and high-strength concrete specimens of three different sizes are reported. Geometrically similar three-point bend specimens were subjected to either a sudden 1000-fold increase or a 10-fold decrease of the loading rate. It was observed that for a large increase of the loading rate, the post-peak softening can be reversed to hardening followed by a second peak of the stress-strain diagram. A sudden decrease of the loading rate initially causes, a steeper softening slope of this diagram. The results are similar for normal and high strength concrete specimens. The viscoelastic cohesive crack model with the rate-dependent softening law is used to model the experimental results.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0013-7944(95)00080-FDOIArticle
http://www.sciencedirect.com/science/article/pii/001379449500080FPublisherArticle
ORCID:
AuthorORCID
Faber, K. T.0000-0001-6585-2536
Additional Information:Copyright © 1995 Elsevier. (Received 23 September 1994) This experimental work was supported by the Center for Advanced Cement-Based Materials at Northwestern University. Further support for the theoretical formulation has been obtained under NSF grant MSS 9114476 for Northwestern University.
Funders:
Funding AgencyGrant Number
Center for Advanced Cement-Based Materials, Northwestern UniversityUNSPECIFIED
NSFMSS 9114476
Issue or Number:6
Record Number:CaltechAUTHORS:20140908-181326961
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140908-181326961
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49423
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Sep 2014 22:34
Last Modified:03 Mar 2020 13:01

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