Results 1 to 10 of about 63,659 (281)

Assessment and Measurment of Potential Blunt Trauma Under Ballistic Helmets [PDF]

open access: yes, 2008
This paper investigates measurement techniques to evaluate ballistic impact protection in terms of head contact loads from non penetrating impacts on helmets.
Webb, Annette   +2 more
core   +7 more sources

The role of tangential velocity in explosive initiation by fragment impact

open access: yesDefence Technology, 2022
An initiation study is presented in which we examine the effect of the normal and the tangential velocity components of a fragment that impacts a covered and a bare Comp-B explosive. The study is based on calibrated numerical Lagrangian simulations using
Vitaly Leus   +3 more
doaj   +1 more source

A comparison of the behind armour blunt trauma effects between ceramic faced and soft body armours caused by ballistic impact [PDF]

open access: yes, 2002
Recently published research has characterised the behind armour blunt trauma (BABT) effects associated with high velocity ballistic impact on textile-based armour faced with a ceramic plate. Subsequently dynamic displacements, accelerations and pressures
Lewis, E. A.   +2 more
core   +7 more sources

Maximal fascicle shortening velocity measurements in human medial gastrocnemius muscle in vivo

open access: yesPhysiological Reports, 2023
This study evaluated the maximal fascicle shortening velocity under near‐no‐load conditions. In addition, we determined whether the rate of torque development during ballistic contraction was related to maximal fascicle shortening velocity. Under passive
Keitaro Kubo
doaj   +1 more source

Interceptor model based on ballistic missile maneuvering penetration [PDF]

open access: yesZhihui kongzhi yu fangzhen, 2023
The mid-course ballistic flight is the research focus of various missile defense systems, and the development of kinetic energy interceptors has reached the level of refinement and precision, the mid-course penetration technology of ballistic missiles is
SHAO Hengwu, LI Hongwei
doaj   +1 more source

Ballistic nanofriction [PDF]

open access: yesNature Materials, 2010
Sliding parts in nanosystems such as Nano ElectroMechanical Systems (NEMS) and nanomotors, increasingly involve large speeds, and rotations as well as translations of the moving surfaces; yet, the physics of high speed nanoscale friction is so far unexplored. Here, by simulating the motion of drifting and of kicked Au clusters on graphite - a workhorse
Guerra, R.   +3 more
openaire   +5 more sources

Experimental and Numerical Analysis of Bulletproof Armor Made from Polymer Composite Materials [PDF]

open access: yesEngineering and Technology Journal, 2015
This work focuses on the preparation of polymer matrix composite specimens by (Hand Lay-Up) method to make bulletproof armor from the unsaturated polyester resin (UP) as a matrix reinforced by Kevlar fibers at different volume fractions with and without (
Jawad Kadhim Oleiwi   +2 more
doaj   +1 more source

A Thermal Transport Study of Branched Carbon Nanotubes with Cross and T-Junctions

open access: yesApplied Sciences, 2021
This study investigated the thermal transport behaviors of branched carbon nanotubes (CNTs) with cross and T-junctions through non-equilibrium molecular dynamics (NEMD) simulations.
Wei-Jen Chen, I-Ling Chang
doaj   +1 more source

Vertical Launch Trajectory Modeling and Range Influence Law of Shipborne Depth Charge

open access: yes水下无人系统学报, 2023
The vertical launch of shipborne depth charge can greatly improve platform adaptability and combat effectiveness, which is of great significance in improving the combat capability of ships.
Xiaohui WAN   +5 more
doaj   +1 more source

Research on deployment method of early warning detection ship in ballistic missile defense operation [PDF]

open access: yesZhihui kongzhi yu fangzhen, 2023
In order to give full play to the maneuverability of sea-based ballistic missile defense force and expand the level of sea-based ballistic missile defense, this paper studies the deployment of early warning and detection ship in ballistic missile defense
XIE Xuehao, ZHAO Xiaodong
doaj   +1 more source

Home - About - Disclaimer - Privacy