Документ взят из кэша поисковой машины. Адрес оригинального документа : http://ofvp.phys.msu.ru/en/science_education/diploma/annot/2012/Pavlin_Podymova_en.pdf Дата изменения: Mon Dec 19 16:10:05 2011 Дата индексирования: Mon Oct 1 21:48:38 2012 Кодировка:

Laser optoacoustic method of evaluation of porosity influence on local elastic moduli of isotropic composite materials
Diploma thesis abstract Pavlin S.V. Scientific adviser Ph.D. N.B.Podymova

In the present work laser optoacoustic method of evaluation of porosity influence on local elastic moduli of isotropic composite materials is proposed and experimentally realized. Local values of elastic moduli and porosity were calculated from the values of longitudinal and shear wave velocities of thermooptically generated pulses. The measured results of local porosity compare with the results of weighting in the air. The method is realized with a number of isotropic composite material samples made from aluminum matrix, titanium microparticles and synthetic diamond nanoparticles. Received evaluation of porosity influence at local elastic moduli could be the basis for improved composite material technologies.