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Review Article

Simulation Methods for Guided Wave-Based Structural Health Monitoring: A Review

[+] Author and Article Information
C. Willberg

Structural Mechanics Department,
Institute of Composite Structures and
Adaptive Systems,
German Aerospace Center (DLR),
Braunschweig 38108, Germany
e-mail: christian.willberg@dlr.de

S. Duczek

Institute for Mechanics,
Otto-von-Guericke-University of Magdeburg,
Magdeburg 39106, Germany
e-mail: sascha.duczek@ovgu.de

J. M. Vivar-Perez

Structural Mechanics Department,
Institute of Composite Structures and
Adaptive Systems,
Transfer Center MRO and Cabin Upgrade,
German Aerospace Center (DLR),
Hamburg 22335, Germany
e-mail: juan.vivarperez@dlr.de

Z. A. B. Ahmad

Faculty of Mechanical Engineering,
Universiti Teknologi Malaysia,
Skudai 81310, Malaysia
e-mail: zair@mail.fkm.utm.my

Manuscript received March 7, 2014; final manuscript received December 27, 2014; published online February 4, 2015. Assoc. Editor: Chin An Tan.

Appl. Mech. Rev 67(1), 010803 (Jan 01, 2015) (20 pages) Paper No: AMR-14-1030; doi: 10.1115/1.4029539 History: Received March 07, 2014; Revised December 27, 2014; Online February 04, 2015

This paper reviews the state-of-the-art in numerical wave propagation analysis. The main focus in that regard is on guided wave-based structural health monitoring (SHM) applications. A brief introduction to SHM and SHM-related problems is given, and various numerical methods are then discussed and assessed with respect to their capability of simulating guided wave propagation phenomena. A detailed evaluation of the following methods is compiled: (i) analytical methods, (ii) semi-analytical methods, (iii) the local interaction simulation approach (LISA), (iv) finite element methods (FEMs), and (v) miscellaneous methods such as mass–spring lattice models (MSLMs), boundary element methods (BEMs), and fictitious domain methods. In the framework of the FEM, both time and frequency domain approaches are covered, and the advantages of using high order shape functions are also examined.

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Figures

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Fig. 1

Lamb wave mode shapes

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Fig. 2

Dispersion curves for the first two symmetric and antisymmetric Lamb modes in an aluminum plate (E = 7 · 1010 N/m2, ν = 0.33)

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Fig. 3

Waveguide model for SAFE method

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Fig. 4

A periodic section n in the infinite plates with periodic boundaries r and l. Width of the periodic section is denoted by ΔL.

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Fig. 5

Different FEs to model thin-walled structures

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Fig. 6

Convergence curve for the S0-mode taken from Willberg et al. [185]

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Fig. 7

Convergence curve for the A0-mode taken from Willberg et al. [185]

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Fig. 8

Examples of thickness dependent Lamb wave problems. (a) Plot of the bottom surface of a 3D plate with a conical hole calculated using isogeometric FEs [3]. (b) Time history of the displacement field at the measurement point B in thickness direction (u2)—SEM. A0- and A1-modes are excited [185].

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