Can I read A Spectral Finite Element with Embedded Delamination for Modeling of Wave Scattering in Composite Beams on EtoBox?

A Spectral Finite Element with Embedded Delamination for Modeling of Wave Scattering in Composite Beams by A. Nag; D. Roy Mahapatra; S. Gopalakrishnan; T.S. Sankar is a Engineering article available to read on EtoBox.

What is A Spectral Finite Element with Embedded Delamination for Modeling of Wave Scattering in Composite Beams about?

A spectral finite element for modeling of wave scattering in laminated composite beam with embedded delamination is proposed. The method uses fast Fourier transform (FFT) for transformation of the temporal variables into frequency dependent variables and conventional node-based finite element (FE) approach for spatial discretization in frequency domain. The base-laminates and the sub-laminates are treated as structural waveguides, which form the internal spectral elements. The region of delamination is modeled by assuming constant cross-sectional rotation. Equilibrium at the interfaces between the base-laminate and the sub-laminates is imposed using efficient matrix methodology. The internal element nodes are finally condensed to form a single equivalent beam element with embedded delamination and is called damaged spectral element. Only three quantities need to be specified for automated construction of the proposed element. These are the local coordinates of one of the delamination tips and delamination length. The main advantage is the easy insertion of delamination in finite element model and efficient correlation of measured waveforms in structural health monitoring applicatio

Who reads A Spectral Finite Element with Embedded Delamination for Modeling of Wave Scattering in Composite Beams?

Author

A. Nag; D. Roy Mahapatra; S. Gopalakrishnan; T.S. Sankar

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0266-3538)

Published

2003

Language

EN

Field

Engineering (Physical Sciences)