Laser-generated shock wave attenuation aimed at microscale pyrotechnic device design

Yu, Hyeonju; Yoh, Jack J.

doi:10.1063/1.4950855

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…So, in this paper CEL method has been used alongside Mie-Gruneisen EoS and JC modeling for understanding the deformation of a deposited Ti6AlV4 solid particle with a diameter of 20 µm. The coefficient of friction in all represented simulations are assumed to be equal to 0.3, and the properties of the used material for this study are illustrated in Table 1 [15][16][17][18]. All the simulations have been carried out in 50 nanoseconds (ns).…”

Section: The Proper Finite Element-based Simulation Using Abaqusmentioning

confidence: 99%

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Numerical Simulation of Solid Ti6AI4V Particles Impinging on a Stainless-Steel Substrate at High Speed: Influence of the Particle Temperature

Khamsepour

Moreau

Dolatabadi

2021

Thermal Spray 2021: Proceedings From the International Thermal Spray Conference

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Additive manufacturing processes have been used to produce or repair components in different industry sectors like aerospace, automotive, and biomedical. In these processes, a part can be built by either melted particles as in selective laser melting (SLM) or solid-state particles as in the cold spray process. The cold spray has gained significant attention due to its potential for high deposition rate and nearly zero oxidation. However, the main concern associated with using the cold spray is the level of porosity in as-fabricated samples, altering their mechanical properties. These pores are primarily found in the regions where adiabatic shear instability does not occur. It is worth noting that the deformation of the impacted solid particle plays a vital role in reaching the shear instability. Therefore, for investigating the adiabatic shear instability region, an elastic-plastic simulation approach has been used. For this purpose, it is assumed that an elevated temperature solid Ti6Al4V particle impacts on a stainless-steel substrate surface at high velocity. The results show that increasing particle temperature will significantly enhance particle deformation because of thermal softening. Additionally, they illustrate that a material jet responsible for producing a bonding between particle and substrate by ejecting the broken oxide layer will be formed when the particle has a temperature above 1073 K and substrate remains at room temperature. In the end, it should be noted that increasing particle temperature up to 723 K will not have a significant effect on substrate deformation and final substrate temperature.

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Section: The Proper Finite Element-based Simulation Using Abaqusmentioning

confidence: 99%

“…Table 1: The used material properties for obtaining the results by CEL approach using Mie-Gruneisen EoS and JC modeling [15][16][17][18].…”

Section: The Proper Finite Element-based Simulation Using Abaqusmentioning

confidence: 99%

Numerical Simulation of Solid Ti6AI4V Particles Impinging on a Stainless-Steel Substrate at High Speed: Influence of the Particle Temperature

Khamsepour

Moreau

Dolatabadi

2021

Thermal Spray 2021: Proceedings From the International Thermal Spray Conference

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Shock fatigue damage failure boundary study of BGA solder joints based on shock response spectrum

Dang,

Sun,

Hao

et al. 2024

International Journal of Fatigue

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Performance characterization of a miniaturized exploding foil initiator via modified VISAR interferometer and shock wave analysis

Kim

Jang

et al. 2017

Journal of Applied Physics

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A pyrotechnic device that consists of a donor/acceptor pair separated by a gap or a bulkhead relies on the shock attenuation characteristics of the gap material and the shock sensitivity of the donor and acceptor explosives. In this study, a miniaturized exploding foil initiator, based on high pulsed electrical power generator, was designed to launch a micro Kapton® flyer for impact initiation of a high explosive in order to understand its performance characteristics. Here, the explosive substance was replaced with a witness plate because the flyer poses various flight motions of rotation, bend, and fragmentation due to its extreme thinness. By using a Velocity Interferometer System for Any Reflector and ANSYS Explicit Dynamics, the averaged velocity of a flyer is measured, which then allows for the calculation of the shock pressure and the duration imparted to the explosive for an initiation. Subsequently, the relationship between the flyer velocity, the amplitude, and the width of impact loading can be used to assess the performance of the designed exploding foil initiator of a micro pyro-mechanical device.

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Laser-generated shock wave attenuation aimed at microscale pyrotechnic device design

Cited by 4 publications

References 13 publications

Numerical Simulation of Solid Ti6AI4V Particles Impinging on a Stainless-Steel Substrate at High Speed: Influence of the Particle Temperature

Numerical Simulation of Solid Ti6AI4V Particles Impinging on a Stainless-Steel Substrate at High Speed: Influence of the Particle Temperature

Shock fatigue damage failure boundary study of BGA solder joints based on shock response spectrum

Performance characterization of a miniaturized exploding foil initiator via modified VISAR interferometer and shock wave analysis

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