Size effect on fracture energy of concrete determined by three-point bending

Journal Article · Tue Jul 01 04:00:00 EDT 1997 · Cement and Concrete Research

DOI:https://doi.org/10.1016/S0008-8846(97)00100-2· OSTI ID:532924

Jueshi, Qian; Hui, Luo ^[1]

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1. Chongqing Jianzhu Univ. (China)

The three-point bending test of a notched specimen is a common method of determining the fracture energy of concrete. Because there exist size effects on the test results, its validity is in doubt. Theoretical analysis shows that the size effect is mainly caused by inaccuracy in the formula used to calculate the fracture energy, but not due to shortcoming of the test method. The theoretical analysis has been verified with some experimental results on mortar.

• OSTI ID: 532924
• Journal Information: Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 7 Vol. 27; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BENDING
CONCRETES
ENERGY
FRACTURE MECHANICS
MECHANICAL PROPERTIES
MORTARS
NOTCHES
SIZE
VERIFICATION