Local interaction simulation approach for modeling wave propagation in composite structures

Nadella, Kalyan S.; S., Cesnik, Carlos E.

doi:10.1007/s13272-012-0061-9

Cited by 36 publications

(29 citation statements)

References 22 publications

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“…Details of the model and its parameters can be found in Refs. [18,22]. The material mechanical properties associated with our specimen are given in Table 1, and the piezoelectric properties are given in Table 2.…”

Section: Damped Wave Propagation In Anisotropic Composite Platesmentioning

confidence: 99%

“…A time step Dt of 0.125 ls was utilized for the time marching Newmark-beta integration to ensure the accuracy up to the third harmonic frequency, i.e., Dt 1=20f max . The time marching step was 0.06 ls obtained from the Courant-FriedrichsLewy (CFL) number requirement [18]. It should be noted that a denser mesh is used in the thickness direction as an effort to accurately depict the mode shapes of guided waves.…”

Section: Nonlinear Ultrasonics Modeling Capabilitymentioning

confidence: 99%

“…Delsanto et al first derived the one-dimensional, two-dimensional, and 3D LISA formulations for isotropic, heterogeneous materials executed on Connection Machines [12][13][14]. LISA underwent considerable progress during the past decade, with its application in metallic structures [15,16], extension to general anisotropic materials [17][18][19], coupled field capabilities [20], hybridization with other numerical methods [21,22], and execution on powerful graphics processing units (GPUs) with compute unified device architecture (CUDA) technology [23][24][25]. In the authors' recent study, a penalty method was deployed to introduce contact dynamics into the LISA formulation to simulate contact acoustic nonlinearity [26].…”

Section: Introductionmentioning

confidence: 99%

“…The details of formulation derivation can be found in Ref. [18]. Guided wave generation can be achieved with an efficient frequency domain local FEM.…”

Section: Introductionmentioning

confidence: 99%

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Local Interaction Simulation Approach for Efficient Modeling of Linear and Nonlinear Ultrasonic Guided Wave Active Sensing of Complex Structures

Shen

Cesnik

2017

Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems

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This paper presents the local interaction simulation approach (LISA) for efficient modeling of linear and nonlinear ultrasonic guided wave active sensing of complex structures. Three major modeling challenges are considered: material anisotropy with damping effects, nonlinear interactions between guided waves and structural damage, as well as geometric complexity of waveguides. To demonstrate LISA's prowess in addressing such challenges, carefully designed numerical case studies are presented. First, guided wave propagation and attenuation in carbon fiber composite panels are simulated. The numerical results are compared with experimental measurements obtained from scanning laser Doppler vibrometry (SLDV) to illustrate LISA's capability in modeling damped wave propagation in anisotropic medium. Second, nonlinear interactions between guided waves and structural damage are modeled by integrating contact dynamics into the LISA formulations. Comparison with commercial finite element software reveals that LISA can accurately simulate nonlinear ultrasonics but with much higher efficiency. Finally, guided wave propagation in geometrically complex waveguides is studied. The numerical example of multimodal guided wave propagation in a rail track structure with a fatigue crack is presented, demonstrating LISA's versatility to model complex waveguides and arbitrary damage profiles. This paper serves as a comprehensive, systematic showcase of LISA's superb capability for efficient modeling of transient dynamic guided wave phenomena in structural health monitoring (SHM).

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Section: Damped Wave Propagation In Anisotropic Composite Platesmentioning

confidence: 99%

Section: Nonlinear Ultrasonics Modeling Capabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The details of formulation derivation can be found in Ref. [18]. Guided wave generation can be achieved with an efficient frequency domain local FEM.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Local Interaction Simulation Approach for Efficient Modeling of Linear and Nonlinear Ultrasonic Guided Wave Active Sensing of Complex Structures

Shen

Cesnik

2017

Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems

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“…The actual IEs are derived from the elastodynamic equilibrium equations. 9 Several previous papers 8, 10,11 detail the finite difference approximations that form the backbone of the derivation.…”

Section: Introductionmentioning

confidence: 99%

Guided wave interaction with defects in isotropic and composite plates

Obenchain

Cesnik

2014

SPIE Proceedings

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This paper considers the effects of various damage features on guided wave (GW) propagation in isotropic and composite plates using both the local interaction simulation approach (LISA) and experimental methods. First, through-thickness holes in isotropic plates and graphite-epoxy laminates are simulated to establish LISA's ability to capture the GW scattering effects of various hole sizes and positions. GW generation from piezo-ceramic wafers is modeled using the recently developed LISA hybrid approach. The LISA results for the cross-ply case are compared with experimental measurements to evaluate the quality of the simulation. Next, low-velocity impact damage in composite plates is simulated and experimentally characterized. Barely-visible impact damage from a drop-weight fixture is analyzed using laser vibrometry and surface-mounted sensors to quantify its effect on GW fields. Three different methods of simulating the resulting impact are demonstrated using LISA, and the results are compared with the experiment to evaluate the damage modeling techniques. Results from the throughthickness hole study show the effect of sensor position on the strength of damage signals. Impact damage is successfully modeled in LISA using an inverted V-shaped profile with reductions in shear and elastic moduli.

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Bayesian damage localization and identification based on a transient wave propagation model for composite beam structures

Cantero‐Chinchilla

Malik

Chronopoulos

et al. 2021

Composite Structures

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Local interaction simulation approach for modeling wave propagation in composite structures

Cited by 36 publications

References 22 publications

Local Interaction Simulation Approach for Efficient Modeling of Linear and Nonlinear Ultrasonic Guided Wave Active Sensing of Complex Structures

Local Interaction Simulation Approach for Efficient Modeling of Linear and Nonlinear Ultrasonic Guided Wave Active Sensing of Complex Structures

Guided wave interaction with defects in isotropic and composite plates

Bayesian damage localization and identification based on a transient wave propagation model for composite beam structures

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