Gopalakrishnan, S.

Spectral Finite Element Method Wave Propagation, Diagnostics and Control in Anisotropic and Inhomogeneous Structures / [electronic resource] : by S. Gopalakrishnan, A. Chakraborty, D. Roy Mahapatra. - London : Springer London, 2008. - online resource. - Computational Fluid and Solid Mechanics, 1860-482X . - Computational Fluid and Solid Mechanics, .

to the Theory of Anisotropic and Inhomogeneous Materials -- Idealization of Wave Propagation and Solution Techniques -- Wave Propagation in One-dimensional Anisotropic Structures -- Wave Propagation in One-dimensional Inhomogeneous Structures -- Wave Propagation in Two-dimensional Anisotropic Structures -- Wave Propagation in Two-dimensional Inhomogeneous Structures -- Solution of Inverse Problems: Source and System Identification -- Application of SFEM to SHM: Simplified Damage Models -- Application of SFEM to SHM: Efficient Damage Detection Techniques -- Spectral Finite Element Method for Active Wave Control.

In recent times, the use of composites and functionally graded materials (FGMs) in structural applications has increased. FGMs allow the user to design materials for a specified functionality and therefore have numerous uses in structural engineering. However, the behavior of these structures under high-impact loading is not well understood. Spectral Finite Element Method: Wave Propagation, Diagnostics and Control in Anisotropic and Inhomogeneous Structures focuses on some of the wave propagation and transient dynamics problems with these complex media which had previously been thought unmanageable. By using state-of-the-art computational power, the Spectral Finite Element Method (SFEM) can solve many practical engineering problems. This book is the first to apply SFEM to inhomogeneous and anisotropic structures in a unified and systematic manner. The authors discuss the different types of SFEM for regular and damaged 1-D and 2-D waveguides, various solution techniques, different methods of detecting the presence of damages and their locations, and different methods available to actively control the wave propagation responses. The theory is supported by tables, figures and graphs; all the numerical examples are designed to bring out the essential wave behavior in these complex structures. Some case studies based on real-world problems are also presented. This book is intended for senior undergraduate students and graduate students studying wave propagation in structures, smart structures, spectral finite element method and structural health monitoring. Readers will gain a complete understanding of how to formulate a spectral finite element; learn about wave behavior in inhomogeneous and anisotropic media; and, discover how to design some diagnostic tools for monitoring the health or integrity of a structure. The book will also be of value to researchers and practicing engineers in structural integrity.


10.1007/978-1-84628-356-7 doi

Mechanics, applied.
Mechanical engineering.
Structural Mechanics.
Theoretical and Applied Mechanics.
Numerical and Computational Methods in Engineering.



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