Publishing House SB RAS:

Publishing House SB RAS:

Address of the Publishing House SB RAS:
Morskoy pr. 2, 630090 Novosibirsk, Russia



Advanced Search

Journal of Applied Mechanics and Technical Physics

2013 year, number 3

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, N. B. Podymova, E. B. Cherepetskaya
Keywords: isotropic composites, porosity, Young's modulus, laser optoacoustic method

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%.