Development of a LASER-based resonant ultrasound spectroscopy and a framework for error propagation in the estimated elastic moduli

Adebisi, Rasheed; Lesthaeghe, Tyler; Cherry, Matthew; Sathish, Shamachary; Shade, Paul A.

doi:10.1063/1.5031626

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…Alternatively, resonance frequencies are measured by excitation of ultrasounds in the material with an applied sweep of load frequencies in RUS. Theoretical or previously measured resonance frequencies are also required for matching with the experimentally measured frequencies in RUS [10]. The success of RUS lies in the preparation of the sample and iterative matching of the experimentally measured and theoretically available frequency response of materials in inverse mode.…”

Section: Introductionmentioning

confidence: 99%

Measurement of natural frequency and mechanical damping of thin brass diaphragm by pulsed laser generated vibrations

Azam¹,

Malik²,

Irshad³

et al. 2022

J. vibroeng.

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Damped harmonic oscillator model based fitting of nanosecond pulsed laser induced amplitude variations of clamped vibrating circular plate is used to estimate the mechanical damping and natural frequency of the sample in current work. Laser Pulses of 50 mJ energy, 20 ns duration, and focused at a spot of 4 mm diameter at the center of the circular thin brass sheet of 100 µm thickness is used to generate vibrations in the target. Quadrature Michelson interferometer (QMI) with CW laser focused on the opposite side of the target surface is used to measure the amplitude of vibrations. Variations of fringe frequencies are identified in the frequency domain. Finite element based numerical modal analyses are also performed in ANSYS Workbench for the verification of experimental results for the same geometry and materials. Experimental frequencies of vibrations are found to match nearly 2 percent of FEM modes. Moreover, Elastic parameters are also found using the first two mode frequencies and a reasonable agreement is observed while comparing with the elastic parameter data of brass. Current work in itself is a unique attempt of getting mechanical parameters for the determination of elastic parameters in a single laser pulse impulse excited measurement for thin clamped targets.

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Section: Introductionmentioning

confidence: 99%

Measurement of natural frequency and mechanical damping of thin brass diaphragm by pulsed laser generated vibrations

Azam¹,

Malik²,

Irshad³

et al. 2022

J. vibroeng.

View full text Add to dashboard Cite

show abstract

Assessment of material property variations with resonant ultrasound spectroscopy (RUS) when using additive manufacturing to print over existing parts

Taheri¹,

Dababneh²,

Weaver³

et al. 2022

Journal of Advanced Joining Processes

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Resonant ultrasound spectroscopy applications: Elastic moduli computation with x-ray computed tomography input for irregularly shaped objects

Adebisi,

Lesthaeghe,

Cherry

et al. 2024

The Journal of the Acoustical Society of America

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Resonant ultrasound spectroscopy is a technique that uses a combination of experimentally measured resonant frequencies and physics-based computation of these frequencies to determine the entire set of single crystal elastic moduli of the material. Computation of the resonances is most often accomplished using the Rayleigh–Ritz energy minimization technique, and a basis function that requires sample with canonical geometry, such as a cylinder or a rectangular parallelepiped. Any deviation from canonical geometry can have a significant impact on the calculated resonance frequencies and the inverted elastic moduli. To overcome this limitation, this paper describes an approach that uses x-ray computed tomography data to generate accurate solid part model of components with complex geometry. The part model is then imported into an off-the-shelf finite element method (FEM) software to perform the forward problem. The FEM was combined with surrogate modeling for computation of resonance frequencies of both canonical and non-canonical samples, and ultimately, the inversion of elastic moduli.

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Development of a LASER-based resonant ultrasound spectroscopy and a framework for error propagation in the estimated elastic moduli

Cited by 3 publications

References 15 publications

Measurement of natural frequency and mechanical damping of thin brass diaphragm by pulsed laser generated vibrations

Measurement of natural frequency and mechanical damping of thin brass diaphragm by pulsed laser generated vibrations

Assessment of material property variations with resonant ultrasound spectroscopy (RUS) when using additive manufacturing to print over existing parts

Resonant ultrasound spectroscopy applications: Elastic moduli computation with x-ray computed tomography input for irregularly shaped objects

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