Empirical equations for the perforation of mild steel plates

Neilson, A.J.

doi:10.1016/0734-743x(85)90031-4

Cited by 59 publications

(14 citation statements)

References 4 publications

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“…The response of structures subjected to impact loads have been increasingly studied by many researchers due to the need of safer and more efficient devices (Gonçalves et al, 2005;Karagiozova and Alves, 2008;Langseth et al, 1999;Neilson, 1985;Reid, 1993). Some phenomena which cooperate with a complex structure response are strain rate and inertia effects, thermal loading, material failure and stability.…”

Section: Introductionmentioning

confidence: 98%

Scaling of structures subject to impact loads when using a power law constitutive equation

Oshiro

Alves

2009

International Journal of Solids and Structures

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a b s t r a c tIt is well known that structures subjected to dynamic loads do not follow the usual similarity laws when the material is strain rate sensitive. As a consequence, it is not possible to use a scaled model to predict the prototype behaviour. In the present study, this problem is overcome by changing the impact velocity so that the model behaves exactly as the prototype. This exact solution is generated thanks to the use of an exponential constitutive law to infer the dynamic flow stress. Furthermore, it is shown that the adopted procedure does not rely on any previous knowledge of the structure response. Three analytical models are used to analyze the performance of the technique. It is shown that perfect similarity is achieved, regardless of the magnitude of the scaling factor. For the class of material used, the solution outlined has long been sought, inasmuch as it allows perfect similarity for strain rate sensitive structures subject to impact loads.

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Section: Introductionmentioning

confidence: 98%

Scaling of structures subject to impact loads when using a power law constitutive equation

Oshiro

Alves

2009

International Journal of Solids and Structures

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“…Three simplified models have been collected from the bibliography (Neilson, 1985;Lepareux et al, 1989). …”

Section: Simplified Mechanical Models To Evaluate the Penetration Depthmentioning

confidence: 99%

A probabilistic model for the vulnerability of metal plates under the impact of cylindrical projectiles

Mébarki¹,

Nguyen²,

Mercier³

et al. 2007

Journal of Loss Prevention in the Process Industries

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“…For instance, a mechanical model is developed in order to calculate thé pénétration depth for given ranges of thé projectiles velocities: for instance, Bless [9], corresponds to a velocity of almost 2.15km/s. Many other models hâve also been developed and compared to thé expérimental data, Neilson [28], BRL and SRI models, [10,24]. The authors hâve recently issued a mechanical model that évaluâtes thé pénétration depth, h p , in thé case of metallic targets and metallic rods as projectiles, Mébarki [25][26][27].…”

Section: Figure 9: Trajectory Of Thé Fragmentmentioning

confidence: 99%

“…For this purpose, various expérimental data for this kind of impacts are collected from thé existing literature [9,10,[24][25][26][27][28]. For instance, a mechanical model is developed in order to calculate thé pénétration depth for given ranges of thé projectiles velocities: for instance, Bless [9], corresponds to a velocity of almost 2.15km/s.…”

Section: Figure 9: Trajectory Of Thé Fragmentmentioning

confidence: 99%