Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Ultrasound reflection from immersed laminates and its application in adhesive bond inspections
Submission Author:
Bernardo Junqueira , RJ
Co-Authors:
DANIEL CASTELLO, Ricardo Leiderman, Arthur M. B. Braga, Bernardo Junqueira
Presenter: Bernardo Junqueira
doi://10.26678/ABCM.COBEM2017.COB17-0393
Abstract
In the present work, we compute the reflection coefficient for immersed laminated plates. We use the spring boundary conditions for adhesive bonds and model adhesion imperfections reducing the corresponding spring constants. We develop our formulation with the aid of the invariant embedding technique and, accordingly, it is numerically unconditionally stable. We identify the frequencies/angles of incidence that are most sensitive to adhesion flaws. Such frequencies/angles of incidence are presumably the optimum choices for the inspecting field in adhesive bond ultrasound evaluations.
Keywords
Interface Inspection, Laminates, Spring Boundary Conditions, Invariant Embedding
