Characterization of Porosity in Support of Mechanical Property Analysis

by R. H. Price, Sandia Natl Lab, Albuquerque, United States,
R. J. Martin, III, Sandia Natl Lab, Albuquerque, United States,
P. J. Boyd, Sandia Natl Lab, Albuquerque, United States,

Abstract: Previous laboratory investigations of tuff have shown that porosity has a dominant, general effect on mechanical properties. As a result, it is very important for the interpretation of mechanical property data that porosity is measured on each sample tested. Porosity alone, however, does not address all of the issues important to mechanical behavior. Variability in size and distribution of pore space produces significantly different mechanical properties. A nondestructive technique for characterizing the internal structure of the sample prior to testing is being developed and the results are being analyzed. The information obtained from this technique can help in both qualitative and quantitative interpretation of test results.

Subject Headings: Mechanical properties | Porosity | Structural analysis | Nondestructive tests | Structural behavior | Porous media | Information management

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