Interface Fracture Models of Concrete Externally Reinforced by FRP Plates

DOI

10.2991/icmce-14.2014.77How to use a DOI?

Keywords

Rigid Joint Model, Semi-Rigid Joint Model, Flexible Joint Model, Energy Release Rate, Interface Fracture Models Component

Abstract

In this paper, the fracture models on FRP-concrete bonded interface are summarized and compared for concrete structures externally reinforced with FRP plates. The energy release rates of the unified model of bi-material interface fracture specimens under the transverse and moment loads by the rigid, semi-rigid, and flexible joint models are compared. The results show that the classical rigid joint model under-evaluates the compliance, and it thus predicts the approximate energy release rate of the specimen. The semi-rigid joint model also under-evaluates the compliance and energy release rate of the specimen. The flexible joint model introduces two interface compliance coefficients to describe the crack tip deformation under the shear stress and normal stress, and it thus improves the calculation accuracy of both the compliance and energy release rate.

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lei ZHANG
AU  - Ping-Hu LIU
AU  - Xiao-Peng GUO
AU  - Yong YANG
AU  - Jun ZHENG
PY  - 2014/12
DA  - 2014/12
TI  - Interface Fracture Models of Concrete Externally Reinforced by FRP Plates
BT  - Proceedings of the 2014 International Conference on Mechanics and Civil Engineering
PB  - Atlantis Press
SP  - 446
EP  - 451
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmce-14.2014.77
DO  - 10.2991/icmce-14.2014.77
ID  - ZHANG2014/12
ER  -