Numerical Simulation Techniques for Damage Response Analysis of Composite Structures
Structural health monitoring (SHM) of composite structures plays an important role in nondestructive evaluation of safety-critical engineering applications. Elastic wave propagation based SHM techniques have proven their potential in effective assessment
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Abstract Structural health monitoring (SHM) of composite structures plays an important role in nondestructive evaluation of safety-critical engineering applications. Elastic wave propagation based SHM techniques have proven their potential in effective assessment of structural discontinuities and damages. Numerical simulations play a significant role in development of robust SHM strategies for such composite structures. These simulations are experimentally validated for selected baseline cases and then applied to solve a panoptic range of plausible study cases, such as—variable operating conditions, increasing structural complexities, damage size and damage shapes. Thus, the numerical simulations can significantly help in reducing rigorous laboratory experimentations, saving time and cost. This chapter is mainly focused on the guided wave propagation and acoustic emission-based damage response analysis in fiber (graphite/glass/natural) reinforced composite structures used in the automotive, marine, wind-energy and aerospace industries. Based on the problem-solving efficiency and popularity, the spectral element and finite element method based numerical simulation technics are explicitly selected to be discussed here. Keywords Composite structure · Damage · Guided wave propagation · Numerical simulation, acoustic emission · Acoustic emission · Structural health monitoring (SHM) · Piezoelectric transducer (PZT)
S. Sikdar (B) · W. Van Paepegem · M. Kersemans Mechanics of Materials and Structures (UGent-MMS), Department of Materials, Textiles and Chemical Engineering (MaTCh), Ghent University, Technologiepark-Zwijnaarde 46, 9052 Zwijnaarde, Belgium e-mail: [email protected] W. Ostachowiczc Institute of Fluid-Flow Machinery, Polish Academy of Sciences, 14, Fiszera Street, 80-231 Gdansk, Poland © Springer Nature Singapore Pte Ltd. 2021 M. Jawaid et al. (eds.), Structural Health Monitoring System for Synthetic, Hybrid and Natural Fiber Composites, Composites Science and Technology, https://doi.org/10.1007/978-981-15-8840-2_7
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1 Introduction Lightweight fiber-reinforced composite structures (laminates and sandwiches) are of huge demand in automotive, aviation, marine and wind energy industries, due to their construction flexibilities, high in-plane strengths, high stiffness/weight ratios and damping capacities [1–5]. But, variable loading conditions (such as—abrasion, impact, fatigue) and hazardous ambient conditions (such as—moisture-content variation, temperature fluctuations) can eventually generates various types of damage (debond, delamination, fibre-cracking, localized inhomogeneity, breathing-cracks, amongst others) in these structures, and may grow further leading to a sudden failure of the structure while in service [6–11]. Therefore, development of nondestructive robust structural health monitoring (SHM) strategies are needed to identify the damage symptoms in advance. Some nondestructive evaluation techniques are proposed that uses the acoustic emission (AE), guided wave (GW) p
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