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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: Dynamic Size Effect in Normal- and High-Strength Concrete Cylinders
Author(s): Motaz M. Elfahal and Theodor Krauthammer
Publication: Materials Journal
Appears on pages(s): 77-85
Keywords: failure; high-strength concrete; impact; size effect
Abstract:The size-effect phenomenon was investigated numerically and experimentally on both normal- and high-strength concrete cylinders subjected to static and dynamic compression. The tests provided data whose analysis produced evidence on the effect of loading rate and material strength on the size effect for structural concrete in compression. Parallel pretest and post-test computational simulations were used to perform numerical tests of the same specimens and to explore the role of the time dimension on the physical phenomena that contribute to the size effect. Comparisons between test and numerical data assisted and guided the investigators in identifying the governing parameters that define the physical phenomena. Both tests and numerical models proved the existence of a size effect in parameters other than strength such as the modulus of elasticity and the strain at maximum stress.
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