Results 191 to 200 of about 2,199,494 (228)

Motor planning, initiation and execution of shoulder abduction against gravity: Evidence from startReact. [PDF]

PLoS One
Thomas C, Johnson B, Baillargeon EM, Heckman RL.   +3 more
europepmc   +1 more source

Thickness configuration optimization of B₄C/UHMWPE composite armor under varying impact velocities and areal densities through numerical and experimental study. [PDF]

Sci Rep
Wang H, Tang K, Wang J, Song H, Li Y, Chen X, Gong H, Ma Y.   +7 more
europepmc   +1 more source

On the order of plates providing the maximum ballistic limit velocity of a layered armor [PDF]

International Journal of Impact Engineering, 1999
Abstract The high-velocity impact of a three-dimensional rigid sharp impactor penetrating into a ductile layered armor is studied using a simplified model for an impactor–armor interaction. The goal of the study is to determine the order of the plates in the armor that provides the maximum ballistic limit velocity.
A Dubinsky
exaly   +3 more sources

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Empirical Ballistic Limit Velocity Model for Bi-Layer Ceramic–Metal Armor

International Journal of Protective Structures, 2015
An empirical model to estimate the ballistic velocity limit (BLV) of bi-layer ceramic–metal armor materials, considering momentum and energy balance during impact process, is proposed. Three ceramic materials as front layer, namely: alumina (Al2O3 96%) boron carbide (B4C) and silicon carbide (SiC) and three materials as backing layer, namely ...
Sridhar Idapalapati, Ahmad Serjouei
exaly   +2 more sources

Reduced ballistic limit velocity of graphene membranes due to cone wave reflection

Extreme Mechanics Letters, 2017
Abstract Recent microscale ballistic experiments have revealed that multilayer graphene membranes exhibit exceptionally high ballistic limit velocity and specific penetration energy. A key feature contributing to the exceptional performance of these systems is the cone wave that develops at impact, which propagates radially at a very high speed for ...
Zhaoxu Meng, Amit Singh, Xin Qin
exaly   +2 more sources

Two-scale modeling of high-velocity fragment GFRP penetration for assessment of ballistic limit

International Journal of Impact Engineering, 2017
Abstract The present paper deals with the ballistic testing and numerical modeling problems of fragment penetration of glass fabric/epoxy-phenolic (GFRP) laminates. Two laminates of different thickness (1.95 and 3.90 mm) were subjected to ballistic impact of 6.35 mm dia steel sphere as a fragment simulator at different velocities to get ballistic ...
Sergei Sapozhnikov
exaly   +2 more sources

Numerical evaluation of ballistic limit velocity and experimental ballistic response of 25 mm thick aluminium 7075 alloy targets

Materials Today: Proceedings, 2022
R Praveen
exaly   +2 more sources

A material point method model and ballistic limit equation for hyper velocity impact of multi-layer fabric coated aluminum plate

International Journal of Mechanics and Materials in Design, 2017
A multi-layer fabric coated aluminum plate is usually used in the hard upper torso of space suit to protect astronauts from getting hurt by space dust. In this paper, the protective performance of the multi-layer fabric coated aluminum plate is investigated.
Xiong Zhang, Gangtie Zheng
exaly   +2 more sources

Practical formulae for predicting the ballistic limit velocity of armour perforation by ductile hole growth

International Journal of Impact Engineering, 2022
Rami Masri
exaly   +2 more sources

A study of the effect of panel dimensions and projectile diameter on ballistic limit velocity

International Journal of Materials Engineering Innovation, 2017
exaly   +4 more sources