A. A. Karabutov, N. B. Podymova, E. B. Cherepetskaya, “Measuring the dependence of the local Young's modulus on the porosity of isotropic composite materials by a pulsed acoustic method using a laser source of ultrasound”, Prikl. Mekh. Tekh. Fiz., 2013, Volume 54, Issue 3,Pages <nobr>181

This article is cited in 19 papers

Measuring the dependence of the local Young's modulus on the porosity of isotropic composite materials by a pulsed acoustic method using a laser source of ultrasound

A. A. Karabutov^a, N. B. Podymova^b, E. B. Cherepetskaya^c

^a International Laser Center of Moscow State University
^b Lomonosov Moscow State University
^c Moscow State Mining University, Moscow, 119991, Russia

Abstract: A laser optoacoustic method for analyzing the effect of porosity on the local isotropic Young's modulus of composite materials was proposed and experimentally implemented. Using as an example samples of a metal matrix composite based on silumin with reinforcing microparticles of silicon carbide, SiC, in various concentrations, it is shown that to provide an effective increase in Young's modulus with increasing concentration of SiC, the porosity of the final sample should not exceed 2%.

Keywords: isotropic composites, porosity, Young's modulus, laser optoacoustic method.

UDC: 534.08; 669.018.715

Received: 08.11.2012