Spallation damage of 90W–Ni–Fe alloy under laser-induced plasma shock wave

Zhang, Lei; Huang, Yufeng; Shu, Hua; Chen, Baishan; Chen, Xun; Ma, Yunzhu; Liu, Wensheng

doi:10.1016/j.jmrt.2022.01.090

Cited by 6 publications

(5 citation statements)

References 28 publications

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“…The accuracy of Equation (25), which is crucial for the present implementation, was evaluated through the comparison with experimental results for the 90W–Ni–Fe alloy taken from [ 52 ]. Using the mechanical properties from [ 52 ] and the fracture toughness value of 60 MPaˑm 1/2 from [ 53 ], the calculated and experimental spall strength of the 90W–Ni–Fe alloy is in full agreement (6.46 GPa). This result was achieved for a strain rate of 10 6 s −1 .…”

Section: Computational Tools and Resultsmentioning

confidence: 99%

Analytical and Numerical Modeling of Stress Field and Fracture in Aluminum/Epoxy Interface Subjected to Laser Shock Wave: Application to Paint Stripping

Papadopoulos

Τσερπές

2022

Materials

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In this paper, analytical and numerical models have been developed to compute the stress field and predict fracture of the aluminum/epoxy interface subjected to laser shock loading, in the frame of the investigation of the paint stripping process. An explicit finite element (FE) model combined with the cohesive zone modeling (CZM) method, an analytical stress analysis model, and a spall fracture model have been developed. The numerical model has been calibrated and validated against tests in terms of the stripping pattern, while the analytical models have been compared with the numerical model. The models were combined to generate computational tools for decreasing computational effort. The FE model with the CZM is the most accurate tool although it is the most computationally expensive. The spall fracture model gives trusted estimations of the spall strength of the interface which are very sensitive to the interface thickness and when incorporated into a continuum FE-based damage model can predict the stripping initiation faster than the FE model with the CZM. The analytical stress analysis model can be used to efficiently describe the shock wave propagation into the material system, but it can give only a rough estimation of the tensile stress at the epoxy, which when combined with the spall strength does not give reliable predictions of the stripping initiation. The three models require as input different material properties, some of which are very difficult to determine. Nevertheless, the availability of accurate material parameters and properties of the aluminum, the epoxy, and, especially, their interface can significantly improve the efficiency of the developed models.

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Section: Computational Tools and Resultsmentioning

confidence: 99%

Analytical and Numerical Modeling of Stress Field and Fracture in Aluminum/Epoxy Interface Subjected to Laser Shock Wave: Application to Paint Stripping

Papadopoulos

Τσερπές

2022

Materials

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“…Regarding LISWS, experimental details were based on a reference paper [16], and the laser source used was an Nd:YAG laser with a wavelength of 1064 nm (brand: Quanta, model: Q-Plus, power: 400 W), as illustrated below. The shock wave intensity (or shock pressure) was experimentally determined by calculating the pressure jump with shock propagation through the Rankine-Hugoniot relation [19,20]. In this study, the shock wave intensity (or shock pressure) was controlled at 1.0 GPa, 1.7 GPa, and 2.4 GPa, and the corresponding samples were denoted as LISWS-1, LISWS-2, and LISWS-3.…”

Section: Materials Characterizationmentioning

confidence: 99%

“…For example, Osipov et al implemented LISWS for the synthesis of polycrystalline diamonds, and achieved enhanced crystalline quality [19]. Zhang et al reported that Laser shock experiments revealed surprising new way of tungsten particles breaking under intense pressure, challenging traditional theories about material failure [20]. Kim et al developed a new method to join silver nanowires on flexible substrates using laser shockwaves, resulting in smoother, more conductive, and stickier films for flexible electronics [21].…”

Section: Introductionmentioning

confidence: 99%

Innovative synthesis technique for high-performance dielectric resonator antennas: laser-induced shockwave sintering of potassium sodium niobate (KNN)

Zhang,

Joo,

Wang

et al. 2024

Nanotechnology

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This study explored the synthesis and sintering of potassium sodium niobate (KNN) nanoparticles, emphasizing morphology, crystal structure, and sintering methods. The as-synthesized KNN nanoparticles exhibited a spherical morphology below 200 nm. Solid state sintering (SSS) and laser-induced shockwave sintering (LISWS) were compared, with LISWS producing denser microstructures and improved grain growth. Raman spectroscopy and X-ray diffraction confirmed KNN perovskite structure, with LISWS demonstrating higher purity. High-resolution XPS spectra indicated increased binding energies in LISWS, reflecting enhanced density and crystallinity. Dielectric and loss tangent analyses showed temperature-dependent behavior, with LISWS-3 exhibiting superior properties. Antenna performance assessments revealed LISWS-3's improved directivity and reduced sidelobe radiation compared to SSS, attributed to its denser microstructure. Overall, LISWS proved advantageous for enhancing KNN ceramics, particularly in antenna applications.

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“…Zhang [25] established the links of the spall fracture characteristics of 90W-Ni-Fe alloy with the nucleation of initial damage during laser-induced shock load. Wu [26] reported the over peening effect due to internal spall fracture of medium thick Al7050 plates with continued multiple shocks LSP.…”

Section: Introductionmentioning

confidence: 99%

Behavior of Zr–1Nb alloy in coarse- and ultrafine-grain states under laser-induced shock wave loading

Ledon,

Balakhnin,

Uvarov

et al. 2023

Frattura Ed Integrità Strutturale

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The work is devoted to the study of the Zr-1Nb alloy in coarse-grained and ultrafine-grained states under laser-induced shock-wave loading. This material is of interest due to the application for the manufacture of shells for fuel elements of nuclear reactors. The properties of this alloy in the ultrafine-grained state is attracted for the reliability improvement of fuel rods in wide range of load intensity. Shock wave loading was carried out using a Beamtech SGR-Extra-10 high-energy nanosecond laser. The free surface velocity profiles were registered by the VISAR system. Mechanical characteristics are obtained using velocity profiles. It is shown that the spall strength and dynamic elastic limit for the coarse-grained state are higher than for the ultrafine-grained state. In general, the Zr-1Nb alloy in the ultrafine-grained state is more susceptible to spall fracture, including laser shock peening. Numerical simulation of the process under study has been carried out using statistically based nonlinear model of solid with defects and finite element method to describe the deformation behavior and fracture of the material under shock-wave loading. Simulation results are qualitatively consistent with experiments in the prediction of the conditions of spall failure.

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Spallation damage of 90W–Ni–Fe alloy under laser-induced plasma shock wave

Cited by 6 publications

References 28 publications

Analytical and Numerical Modeling of Stress Field and Fracture in Aluminum/Epoxy Interface Subjected to Laser Shock Wave: Application to Paint Stripping

Analytical and Numerical Modeling of Stress Field and Fracture in Aluminum/Epoxy Interface Subjected to Laser Shock Wave: Application to Paint Stripping

Innovative synthesis technique for high-performance dielectric resonator antennas: laser-induced shockwave sintering of potassium sodium niobate (KNN)

Behavior of Zr–1Nb alloy in coarse- and ultrafine-grain states under laser-induced shock wave loading

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