Damping function in the penetration/perforation dynamics of rigid projectiles

Chen, X. W.; Li, X. L.; Deng, Kunxiu

doi:10.2495/su080261

Cited by 4 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Scientific researchers have extensively studied the effects of regular warhead attack and landing angles on penetration trajectory: Goldsmith elaborated on the theoretical research, numerical simulation, and experimental techniques of non-ideal projectile target effects such as oblique impact, moving target plate, and jump flight [2]; Chen summarized the engineering research issues of armor piercing and penetration since 2009. At the same time, a detailed analysis was conducted on the oblique penetration and armor penetration of slender pointed rigid projectiles into metal targets [3]. There is relatively little research on the penetration trajectory of irregular warheads with different penetration capabilities.…”

Section: Introductionmentioning

confidence: 99%

Ballistic Characteristics on Oblique Penetrating Multi-Layer Aluminium Targets by Annular Groove Projectile

Xiao,

Feng

2023

Advances in Transdisciplinary Engineering

View full text Add to dashboard Cite

With the development of complex terminal effects, the semi penetration effect of annular groove projectiles on multi-layer targets has obtained increasing attention. In this paper, based on the theory of cavity expansion, a comparative analysis model is established for the oblique penetration of annular groove projectile and ogive-nosed projectile into multi-layer targets. The FEM analysis software LS-DYNA is used to simulate and calculate the time history curves of projectile velocity, axis deviation angle, and axis angular velocity. In addition, the micro rheological behavior of the target material in the groove during oblique penetration was studied. The results show that the radial offset of the annular groove projectile is less than that of the pointed projectile, and the larger the landing angle, the greater the projectile offset. The penetration resistance of target decreases with the increase in layers of target, while the DOP and lateral deviation of the projectile increase. This analysis model can provide analytical basis for related applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Ballistic Characteristics on Oblique Penetrating Multi-Layer Aluminium Targets by Annular Groove Projectile

Xiao,

Feng

2023

Advances in Transdisciplinary Engineering

View full text Add to dashboard Cite

show abstract

“…Scabbing, perforation, and penetration are the main types of local effects [1]. The corresponding methods of calculating the scabbing thickness, perforation thickness, and the penetration depth have been obtained both experimentally and analytically [2,3]. A comprehensive review of the empirical formulae established by Kennedy [1], Amirikian [4], ACE [5,6], NDRC [7,8], and Chang [9] was published by Li et al [3].…”

Section: Introductionmentioning

confidence: 99%

Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles

Wang

Liu

Qiu

et al. 2015

Shock and Vibration

View full text Add to dashboard Cite

The local destruction and deformation characteristics of a concrete target impacted by a rigid projectile were analyzed, and the similarity laws for local damage effects in the concrete target were studied utilizing the rigid-plastic, internal friction, and modified hydrodynamic models. For a thin target, the impact factor is the only factor controlling the low-velocity impact process. For a thick target impacted by a projectile at intermediate velocity, internal friction is the main factor contributing to the energy dissipation. The impact factor, the toughness factor, and the dynamic factor together determine the penetration process. However, for a thick target impacted at high velocity, the impact factor and hardness factor together determine the penetration process. The penetration depth shows a 2/3 power relationship with impact velocity. For thick targets, similarity laws change along with impact velocity. The radii ratio between the projectile and penetration tunnel is proportional to the projectile’s diameter for intermediate velocity impact and only shows a relationship with the impact velocity for high velocity penetration.

show abstract

“…Cavity expansion models have been used to simulate problems of penetration into infinite and semi-infinite concrete targets [1]. Forrestal and Tzou [2] proposed spherical cavity expansion models based on Mohr-Coulomb yield criterion for concrete targets.…”

Section: Introductionmentioning

confidence: 99%

A Cracked-Comminuted Response Model of Confined Concrete Based on Griffith Strength Theory

Wan

Zao

Zhang

2014

AMM

View full text Add to dashboard Cite

A dynamic spherical cracked-comminuted response model was proposed for the penetration into confined concrete targets with finite radius and lateral elastic confinement. The material was described by linear pressure-volumetric strain relation and Griffith strength theory in the comminuted region, and described as incompressible in the cracked region. Numerical results show that the cracked-comminuted interface velocity and the cavity expansion stress increase with the increase of cavity expansion velocity, the ratio of targets radius to comminuted region radius and the lateral confining rigidity.

show abstract

Damping function in the penetration/perforation dynamics of rigid projectiles

Cited by 4 publications

References 18 publications

Ballistic Characteristics on Oblique Penetrating Multi-Layer Aluminium Targets by Annular Groove Projectile

Ballistic Characteristics on Oblique Penetrating Multi-Layer Aluminium Targets by Annular Groove Projectile

Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles

A Cracked-Comminuted Response Model of Confined Concrete Based on Griffith Strength Theory

Contact Info

Product

Resources

About