FraMCoS 3 1998 Gifu, Japan

Minimum Size of Concrete Specimens for Linear Elastic Fracture Analysis

There exists a minimum size for fracture test of concrete specimens, dmin· When the specimen size d < dmin, the fracture property of the concrete specimen cannot be treated simply by linear elastic fracture mechanics (LEFM). dmin is also very…

First page of: Minimum Size of Concrete Specimens for Linear Elastic Fracture Analysis
Year 1998
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Abstract

There exists a minimum size for fracture test of concrete specimens, dmin· When the specimen size d dmin, the concrete specimen is large enough for the application of LEFM, one-size and one-notch specimen will be adequate testing fracture toughness of concrete. A prediction model for dmin is developed in terms of concrete composition parameters and specimen geometry factor. Any change in dmin due to a change in concrete mixing design and specimen geometry can be evaluated quantitatively.