Abstract
We present a numerical method for computing reflection and transmission coefficients at joints connecting composite laminated plates. The method is based on modelling joints with finite elements with boundary conditions given by the solutions of the wave finite element method for the plates in the infinite half-spaces connected to the joint. There are no restrictions on the number of plates, inter-plate angles, and material parameters of individual layers forming the composite. An L-shaped laminated plate junction is discussed in more detail. Comparisons of numerically predicted scattering coefficients with semi-analytical solutions for the selected structures are presented. The results obtained are essential for statistical energy analysis and dynamical energy analysis based calculations of the wave energy distribution in full built-up structure.
Highlights
We present a numerical method for computing reflection and transmission coefficients at joints connecting composite laminated plates
Reflection and transmission behaviour at joints can be solved using FE tools as has been done for isotropic materials, see paragraphs, and will be presented for composites in “Wave finite element method for composite plates”. These scattering coefficients can be estimated using semi-analytical methods based on force-balance equations at the interface, see[19] for isotropic materials and[20] for composite plates
We extend the hybrid FE/wave finite element (WFE) method to composite laminated plates
Summary
A hybrid FE/WFE model has been developed predicting the scattering properties for different junctions of twodimensional anisotropic composite plates. The influence of the angle of incidence on the distribution of the power flow of incident bending, shear and longitudinal type waves has been investigated. Numerical results presented were compared with semi-analytical evaluations of scattering coefficients. The method gives for the first time a detailed recipe for computing scattering coefficients for the generic case of an arbitrary number of composite plates connected at a junction without restrictions on the angles at which the plate meet or the orientation of the principal axes of individual plates. The results of this paper can be used for the computation of wave energy distributions in SEA by providing coupling loss factors[67] and for angle-of-incidence dependent scattering coefficients entering the radiative transfer and DEA method
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
