Srinivasan Gopalakrishnan, Abir Chakraborty, Debiprosad Roy Mahapatra

Spectral Finite Element Method (eBook, PDF)

Wave Propagation, Diagnostics and Control in Anisotropic and Inhomogeneous Structures

• Format: PDF

Produktbeschreibung

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.

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Produktdetails

• Verlag: Springer London
• Seitenzahl: 440
• Erscheinungstermin: 5. Dezember 2007
• Englisch
• ISBN-13: 9781846283567
• Artikelnr.: 37340634

Autorenporträt

Prof. S. Gopalakrishnan is an Associate Professor at the Indian Institute of Science, Bangalore, India. He has a decade of experience in applying wave based techniques for solving various structural engineering related problems. He is internationally recognized as one of the experts in the field, and is one of the few people responsible for popularizing the use of SFEM through his research publications and presentations.

Dr A. Chakraborty is a Senior Researcher at General Motors India.

Dr Roy Mahapatra is an Assistant Professor at the Indian Institute of Science, Bangalore, India. His research activities are related to the mechanics and dynamics of solid-state engineering materials and structures, and the study of complex systems.

Inhaltsangabe

Introduction.- Introduction to the theory of composite materials.- Idealization of wave propagation models and solution techniques.- Spectral finite elements for homogeneous wave propagation in one-dimensional structures.- Spectral finite elements for inhomogeneous wave propagation in one-dimensional structures.- Spectral finite elements for homogeneous wave propagation in two-dimensional structure.- Spectral finite elements for inhomogeneous wave propagation in two-dimensional structure.- Application of Spectral Finite Element Method to Source and System Identification Problems.- Spectral finite elements for diagnostics wave scattering due to damage and embedded discontinuities in composite.- Application of Spectral Finite Element Method to Structural Health Monitoring (SHM).- Application of spectral finite element method to analysis and design of wave controller for complex connected structures.

Rezensionen

From the reviews:

"The book deals with wave propagation and related problems of identification and control for anisotropic composites with particular emphasis on laminated and graded structures. It is intended for graduate and senior undergraduate students and researchers in engineering disciplines. ... The book presents some interesting results in material sciences. The researchers in this area will find it useful in a number of applications." (Fiazud Din Zaman, Zentralblatt MATH, Vol. 1145, 2008)