Model for ballistic fragmentation and behind-armor debris

Yarin, Alexander L.; Roisman, Ilia V.; Weber, K.; Hohler, V.

doi:10.1016/s0734-743x(99)00048-2

Cited by 26 publications

(15 citation statements)

References 16 publications

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“…Not many such analytical models can be found for ice impact description. It is not surprising that many ideas for such modelling appear first in the fields of penetration mechanics or transport of granular materials, where penetration, deformation, erosion or fragmentation of impactors and targets are often described using hydrodynamic theories [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Impact of a crushing ice particle onto a dry solid wall

Roisman¹,

Tropea²

2015

Proc. R. Soc. A.

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This is a theoretical study about ice particle impact onto a rigid wall. It is motivated by the need to model the process of ice crystal accretion or damage caused by an ice particle impacts. A quasi-one-dimensional model of ice particle impact and deformation is developed. Spherical, cylindrical and conical shapes of the ice crystals are analysed. The model is able to predict particle residual height, the force produced by impact and the collision duration. The theoretical predictions agree well with the available experimental data.

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Section: Introductionmentioning

confidence: 99%

Impact of a crushing ice particle onto a dry solid wall

Roisman¹,

Tropea²

2015

Proc. R. Soc. A.

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“…In order to account for a more complex picture of the fragmentation process, some have proposed approaches that use state variables other than energy (Yew and Taylor, 1994;Smalley and Woosley, 1999); others sought to develop a fundamental understanding of fragmentation through numerical solutions (Yarin et al, 2000;Yossifon et al, 2002). Miller et al (1999) used the finite element method to investigate the one-dimensional fragmentation process and compared the results with the energy models.…”

Section: Introductionmentioning

confidence: 99%

Effects of material properties on the fragmentation of brittle materials

2006

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We present a fundamental investigation of the influence of material and structural parameters on the mechanics of fragmentation of brittle materials. First, we conduct a theoretical analysis (similar to Drugan's single wave problem, Drugan, W..) and obtain closed form solutions for a problem coupling stress wave propagation and single cohesive crack growth. Expressions for a characteristic fragment size s 0 and a characteristic strain-rateε 0 are given. Next, we use a numerical approach to analyze a realistic fragmentation process that involves multiple crack interactions. The average fragment size s is calculated for a wide variety of strain-ratesε and a broad range of material parameters. Finally, we derive an empirical function that relates the normalized fragment size s/s 0 to the normalized strain-rateε/ε 0 and that fits all of the numerical results with a single master curve.

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“…In [10,58] the irregular disintegration of polymeric liquids resulting from the explosive fragmentation of a liquid volume was studied experimentally and theoretically. The authors developed a general theory of such phenomena.…”

Section: Atomization Of Complex Liquidsmentioning

confidence: 99%

“…In this case for certain polymeric systems the increase in the shear viscosity with the shear rate predominated over the increase in elongational viscosity. Irregular liquid atomization is also possible when a liquid collides with a solid if the impact velocity is extremely high [58]. In [11] the results of investigating the impact breakup of cylindrical liquid drops (thin jets) as a result of the transverse impact of a high-speed steel sphere were given (Fig.…”

Section: Atomization Of Complex Liquidsmentioning

confidence: 99%