In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
Chat with Us Online Now
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: FE Analysis on Cohesive Debonding and Cracking Behavior for HIP-Strengthened Concrete Beams by Nonlinear Fracture Mechanics
Author(s): J. Yin, Z. Wu, and T. Asakura
Publication: Special Publication
Appears on pages(s): 267-276
Keywords: cracking distribution; debonding; flexural crack; FRP-strengthened
beams; interfacial fracture energy; stress transfer
Abstract:Experiments of three kinds of FRP-strengthened concrete beams under three-point bending are reviewed first. Two different cracking behaviors, with and without distributed crack in concrete, were observed. To analyze the different cracking behaviors affected by the FRP strengthening through interfacial bond, the FRP strengthened concrete beam is subdivided into a plain concrete beam, under three-point bending, and a FRP sheets bonded concrete prism, subjected to shearing load, to address the fracture mechanism. Nonlinear fracture mechanics is used to model the cohesive crack along the FRP-concrete bond interface and concrete cracking. Finite element simulation is also performed to demonstrate the applicability of the fracture mechanism. Based on both experimental observations and finite element results, it can be concluded that the FRP strengthening effect occurs after the first flexural crack. The bond strength and interfacial fracture energy of bond interface determine the ability of stress transfer. The occurrence of the new flexural cracks after the first one is governed by the relation between the concrete tensile strength and the maximum concrete stress obtained by combining effects of shear stress transfer and bending moment including the stress release due to flexural cracks. Further strengthening effect is archived by the formation of new cracks.
Click here to become an online Journal subscriber