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Particle reinforced composites' elastic properties retrieval by aid of laser generated ultrasound waves

D. LUCA MOTOC1,* , S. FERRANDIZ BOU2, A. POP3

Affiliation

  1. Department of Materials Science, Transilvania University, 500036 Brasov, Romania
  2. Department of Mechanical and Materials Engineering, Polytechnic University of Valencia, Spain
  3. Department of Mechatronics, University of Oradea, 410087 Oradea, Romania

Abstract

The paper aims to present a comparative analysis on numerical approaches carried on particle reinforced polymer composites viscoelastic properties' recovery procedure deployed to assist a laser generated ultrasound experimental configuration. A laser ultrasound technique was used to record the displacement fields within the composite specimens. A numerical procedure developed with Laser Group from University of Bordeaux is assisting the elastic coefficients' recovery process from the recorded signal. Corresponding theoretical displacements and stress/strain fields were simulated by finite-element method and further compared to the experimental signals. Agreement between the experimentally recorded signals and theoretical predictions is being found..

Keywords

Polymer composites, Elastic properties, Laser ultrasound, Ablation mode.

Submitted at: April 9, 2015
Accepted at: June 24, 2015

Citation

D. LUCA MOTOC, S. FERRANDIZ BOU, A. POP, Particle reinforced composites' elastic properties retrieval by aid of laser generated ultrasound waves, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 1032-1037 (2015)