%0 Journal Article
%T Analysis of quantitative relationship between laser
%A Kuanshuang Zhang
%A Liyin Ma
%A Zhenggan Zhou
%J Journal of Sandwich Structures & Materials
%@ 1530-7972
%D 2019
%R 10.1177/1099636217697491
%X This research develops a guided wave technique to quantitatively characterize the adhesive interface properties of a nuclear radiation protection structure. The numerical model is established to investigate the propagation of laser-generated guided waves in a nuclear radiation protection structure that is composed of a 1045 steel sheet connected with a lead alloy (Pb-Sb-Sn) sheet by using an epoxy resin adhesive. The finite element method has been adopted to calculate the characteristics of laser-generated guided waves interaction with the adhesive interface. The propagation of structural guided waves in a single lead sheet and a multi-layered adhesive structure is analyzed and compared to explain the role of the adhesive layer. The investigation quantifies the influence of the relevant adhesive interface properties (bond thickness, Poisson¡¯s ratio and Young¡¯s modulus) on time- and frequency-domain characteristics of structural guided waves in the adhesive structure. The features of laser-generated guided waves interaction with interfacial defects are investigated to identify the discontinuity of the adhesive layer. The numerical results indicate that the characteristics of laser-generated guided waves would vary with different adhesive interface properties. Therefore, the research results would provide guidance for evaluating adhesive interface properties
%K Adhesive structure
%K laser-generated guided waves
%K quantitative characterization
%K adhesive interface
%K finite element method
%U https://journals.sagepub.com/doi/full/10.1177/1099636217697491