Evolution of Damage in Brazilian Test Using Holographic Interferometryby A. Castro-Montero, Univ of Houston, Houston, United States,
Z. Jia, Univ of Houston, Houston, United States,
S. P. Shah, Univ of Houston, Houston, United States,
Abstract: A common method for estimating the tensile strength of concrete is the Brazilian Test. The test is carried out by loading a cylinder on its side in diametral compression. Accodring to the theory of elasticity, this loading configuration produces a nearly constant stress along approximately 75 percent of the diameter. Although the state of stress is not uniaxial and there is redistribution of stress due to nonlinearity of concrete, the tensile stress value at failure has proven to be a useful measure of the tensile strength. The purpose of this study is to evaluate the distribution of deformations on the surface of a disk specimen as it is loaded and determine the failure sequence.
Subject Headings: Ultimate strength | Material tests | Load tests | Load factors | Failure analysis | Strain | Field tests
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