Numerical Investigations of Ultrasonic Scattering from Voids in Composite Materials Based on Random Void Model

Abstract:

Ultrasonic attenuation coefficient is firstly calculated utilizing the finite difference time domain method based on a novel 2-D RVM for carbon fiber reinforced plastic (CFRP) composite materials. The results show that the void morphology has detrimental effect on ultrasonic attenuation. Even at the fixed porosity, ultrasonic attenuation coefficient fluctuates due to the randomness of void morphology in CFRP composite materials. This work significantly helps to understand ultrasonic scattering mechanism of voids and formulation of CFRP composite material properties.

• Periodical: Advanced Materials Research (Volume 346)
• Pages: 639-643
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.346.639
• Online since: September 2011
• Authors: Li Lin, Xiang Zhang, Jun Chen, Xi Meng Li
• Keywords: Composite, Morpholoy, Porosity, Random Void Model, Ultrasonic Attenuation

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