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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.
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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: Stress-Strain Response and Fracture of
Concrete in Biaxial Loading
Author(s): M. Ebrahim Tasuji, Floyd 0. Slate, and Arthur H. Nilson
Publication: Journal Proceedings
Appears on pages(s): 306-312
Keywords: biaxial loads; compressive strength: concretes;deformation; failure mechanisms; microcracking; strains;stress-strain relationships; tensile properties; tensile strength.
Abstract:Thin plain concrete plates subject to biaxial loading were studied experimentally. All combinations of compressive and tensile loadings were included. Deformational characteristics, fracture mechanism, and strength were observed. Results confirm that concrete possesses higher strength in biaxial compression than in uniaxial compression. Under combined compression and tension, the compressive strength decreases almost linearly as the tensile stress increases. The biaxial tensile strength of concrete is greater than its uniaxial tensile strength. Observed modes of failure and measurements of tensile deformation enforce the idea that the most appropriate concrete failure criterion, for uniaxial and biaxial states of stress, is limiting tensile strain. The magnitude of the limiting tensile strain decreases with the degree of direct tensile loading involved and increases with the degree of compression. A general stress-strain relationship for concrete in biaxial loading is proposed. In addition, a simple biaxial strength criterion is recommended for practical application.
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