Untitled

Shin, Hyunho; Lee, Woong

doi:10.1023/a:1024799208317

Cited by 5 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the area of armor design, sensor-activated [5][6] and reactive [7][8][9] armors have received much interest as means to protect kinetic-energy penetrators and shaped charge jets, respectively. These armors fly metallic plates [2,[10][11][12][13] or bars [14][15] toward the incoming penetrator.…”

Section: Introductionmentioning

confidence: 99%

NET3D Calculation on the Depth of Penetration by a Long-Rod Penetrator with Varying Obliquity

Kim

Shin

2014

AMM

View full text Add to dashboard Cite

The effect of the obliquity of a long-rod penetrator on the depth of penetration (DOP) into a witness block has been investigated by NET3D code based on a 3D finite element model with SK constitutive model and polynomial equation of state. The calculation results herein are in general agreement with limited number of experimental data and are very close to the calculation results of the CTH code, both of which are available in the literature. By combining with the present results with existing data, the DOP turns out to decrease rapidly with obliquity up to 30o, decrease relatively slowly up to 70o, and show a saturation behavior thereafter up to 90o.

show abstract

Section: Introductionmentioning

confidence: 99%

NET3D Calculation on the Depth of Penetration by a Long-Rod Penetrator with Varying Obliquity

Kim

Shin

2014

AMM

View full text Add to dashboard Cite

show abstract

Performance of a flying cross bar to incapacitate a long-rod penetrator based on a finite element model

Yoo

Paik

Kim

et al. 2012

Engineering with Computers

View full text Add to dashboard Cite

A Phenomenological Constitutive Equation to Describe Various Flow Stress Behaviors of Materials in Wide Strain Rate and Temperature Regimes

Shin

Kim

2010

Journal of Engineering Materials and Technology

View full text Add to dashboard Cite

A simple phenomenological constitutive model has been proposed to describe dynamic deformation behavior of various metals in wide strain rate, strain, and temperature regimes. The formulation of the model is, σ=[A+B{1−exp(−Cε)}][D ln(ε̇/ε̇0)+exp(E⋅ε̇/ε̇0)][1−(T−Tref)/(Tm−Tref)]m, where σ is the flow stress, ε is the strain, ε̇ is the strain rate, ε̇0 is the reference strain rate, T is the temperature, Tref is the reference temperature, Tm is the melting temperature, and A, B, C, D, E, and m are the material parameters. The proposed model successfully describes not only the linear rise of flow stress with logarithmic strain rate for many metals, but also the upturn of the flow stress at strain rate over about 104 s−1 for the case of copper. It can also describe the exponential increase in the flow stress with logarithmic strain rate for the case of tantalum, and is capable of predicting thermal softening of various metals at high as well as low temperature. The current model can be used for the practical simulation of many high-strain-rate events with improved precision and as a more rigorous comparison standard in the development of a physical model.

show abstract

Untitled

Cited by 5 publications

References 18 publications

NET3D Calculation on the Depth of Penetration by a Long-Rod Penetrator with Varying Obliquity

NET3D Calculation on the Depth of Penetration by a Long-Rod Penetrator with Varying Obliquity

Performance of a flying cross bar to incapacitate a long-rod penetrator based on a finite element model

A Phenomenological Constitutive Equation to Describe Various Flow Stress Behaviors of Materials in Wide Strain Rate and Temperature Regimes

Contact Info

Product

Resources

About