Open AccessThe influence of interface layer characteristics on Lamb waves in layered anisot ropic media
Author(s) -
Haiyan Zhang,
Zhenqing Liu,
Ma Xiao-Song
Publication year - 2003
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.52.2492
Subject(s) - materials science , slip (aerodynamics) , anisotropy , composite material , stiffness , spring (device) , computation , composite number , layer (electronics) , interface (matter) , lamb waves , displacement (psychology) , matrix (chemical analysis) , connection (principal bundle) , structural engineering , wave propagation , optics , computer science , physics , engineering , psychology , algorithm , capillary number , capillary action , psychotherapist , thermodynamics
In this paper, the spring model for the anisotropic interface layer is built and introduced to the global matrix technique that is popularly used for analyzing layered composites. In introducing the spring interface condition, the philosophy adopted is to incorporate it with a minimum disruption to the program structur e, particularly the assembly of the global matrix. The spring interface has ther efore been introduced as a "material layer". This layer has material constants w hich govern the stiffness across it and has zero thickness. The layer can be bui lt into the appropriate location in the global matrix without making any changes in the other layers of the system. Numerical computations for the Lamb wave dis persion curves in two-layered anisotropic composite media with different interfa ce conditions including rigid connection, slip connection, and complete disbond are madeand plots of the through-thickness particle displacement distributions of Lamb modes for the rigid bond interface and slip bond interface are compared .