Dimensional Factors of Bond Failure in Reinforced Concrete

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Title: Dimensional Factors of Bond Failure in Reinforced Concrete

Author(s): M. Ghandehari, S. Krishnaswamy, and S. P. Shah

Publication: Special Publication

Volume: 201

Issue:

Appears on pages(s): 169-188

Keywords: bond; concrete; fracture; interferometry; reinforcing bar

Date: 7/1/2001

Abstract:
Splitting of concrete caused by pullout of deformed reinforcing bars is investigated. The influence of specimen cross-section size and geometry on the relationship between the components of stress and relative displacement at the interface is evaluated. Phase Measurement interferometry is used for accurate mapping of the splitting cracks. The measured crack profiles, material model and a fracture criterion are used in a hybrid experimental/numerical approach to evaluate the unknown normal component of traction at the interface.