Results 11 to 20 of about 521,398 (242)
Ballistic impact on concrete slabs: An experimental and numerical study [PDF]
EPJ Web of Conferences, 2021 The ballistic perforation resistance of 50 mm thick concrete slabs impacted by 20 mm diameter ogive-nose steel projectiles is investigated experimentally and numerically. Three commercially produced concretes with nominal unconfined compressive strengths
Kristoffersen Martin +3 more
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International Journal of Protective Structures, 2023 Concrete is used for protective structures all over the world. Accurate response estimates to a given threat is vital for designing such structures. Concrete models often require numerous input parameters for which sufficient experimental data can be ...
A. Antoniou +2 more
semanticscholar +1 more source
Ballistic perforation resistance of elastomer-metal laminate plates
Materials & Design, 2022 This study investigates the effect of polyurea coating on the ballistic resistance of polyurea-steel laminate plates. Ballistic tests are carried out to compare the residual velocities and failure modes of the monolithic steel plate and polyurea-steel ...
Ye Yuan +6 more
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Journal of the Mechanical Behavior of Materials, 2022 The shape of the projectile seems to determine the effect of a ballistic impact and failure mechanism. In this study, the numerical analysis of ballistic impact with different projectile shapes, i.e., ogive, blunt, conical, and hemispherical is performed.
F. A. Alwan +5 more
semanticscholar +1 more source
Metals, 2023 An internal state variable (ISV)-based constitutive model has been used within a Lagrangian finite element analysis (FEA) framework to simulate ballistic impact of monolithic rolled homogenous armor (RHA) steel plates by RHA steel spheres and cylinders ...
Luke Peterson +3 more
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Materials, 2022 A sandwich structure is a composite material consisting of thin skins encapsulating a cellular core. Such structures have proven to be excellent energy absorbents and are frequently found in various types of protection.
Kristoffer A. Brekken +4 more
semanticscholar +1 more source
Journal of Machine Engineering, 2023 Machine tools are equipped with polycarbonate vision panels that allow the operator to observe the machining process and protect him from ejected fragments. Adequate protection is demonstrated by impact tests.
Eckart Uhlmann +3 more
doaj +1 more source
Failure simulation of stratified panel under ballistic impact
Journal of Engineering Sciences and Innovation, 2022 "This paper presents an analysis of an isothermal model for an impact simulation in order to use the results for virtually optimizing the thickness of the panel for the same threat. The target has a stratified structure; the connection between layers is ""bonded"", with ""breakable"" detachment when there is exceeded a value for tensile stress and ...
GEORGE GHIOCEL OJOC +2 more
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Mechanical behavior of single-layer graphdiyne via supersonic micro-projectile impact
Nano Materials Science, 2022 The mechanical behavior of single-layer graphdiyne (SLGDY) subjected to high-velocity micro-ballistic impacts is analyzed by molecular dynamics (MD) simulations. The ballistic limits of SLGDY is obtained for the first time.
Kailu Xiao +3 more
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Numerical simulation of ballistic impact on composite laminates [PDF]
International Journal of Impact Engineering, 2005 Abstract The paper reports experimental and numerical simulation of ballistic impact problems on thin composite laminated plates reinforced with Kevlar 29. Ballistic impact was imparted with simulated fragments designed in accordance with STANAG-2920 on plates of different thickness.
M.A.G. Silva +2 more
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