Open AccessULTRASONIC ATTENUATION IN FIBER REINFORCED COMPOSITES
Author(s) -
Wu Zhu,
Bang Yao-Jun,
Ning Wei
Publication year - 1996
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.45.58
Subject(s) - attenuation , scattering , materials science , attenuation coefficient , fiber , composite material , perpendicular , ultrasonic sensor , ultrasonic attenuation , fiber reinforced composite , composite number , transverse plane , optics , acoustics , physics , structural engineering , geometry , mathematics , engineering
In order to evaluate the attenuation in fiber reinforced composites due to scattering, the multiple scattering should be taken into account when the volume concentration of fibers is large. This paper presents a method for calculating the effective incident wave field in the composites. The contribution of the scattered transverse waves to the incident longitudinalwave propagating perpendicularly to the fiber axis is shown to be zero. An explicit expression for ultrasonic attenuation coefficient with the multiple scattering included is derived. The influence of multiple scattering on the attenuation coefficient is numerically evaluated in a fiber/aluminum composite.