Results 1 to 10 of about 75,364 (283)

Anti-Ballistic Performance of PPTA/UHMWPE Laminates. [PDF]

open access: yesPolymers (Basel), 2023
Poly(p-phenylene terephthalamide) (PPTA) and ultra-high-molecular-weight polyethylene (UHMWPE) are high-performance polymer materials largely used for body armor applications. Although composite structures from a combination of PPTA and UHMWPE have been created and described in the literature, the manufacture of layered composites from PPTA fabrics and
Zhu L, Gao W, Dikin DA, Percec S, Ren F.
europepmc   +3 more sources

Influence of surface polyurea coating on the ballistic performance of kevlar fabric [PDF]

open access: yesHeliyon
With the increasing lethality of modern weapons, the development of body armor has become increasingly important. The main objective of current research is to make protective gear lighter and increase material ballistic performance.
Xing Li   +3 more
doaj   +2 more sources

Acute Effects of Ballistic and Non-ballistic Bench Press on Plyometric Push-up Performance [PDF]

open access: yesSports, 2019
The purpose of this study was to examine the effects of a ballistic or non-ballistic concentric-only bench press (COBP) on subsequent plyometric push-up performance.
David Bodden   +5 more
doaj   +3 more sources

A comparison of three post-activation potentiation enhancement warm up strategies on bench press performance [PDF]

open access: yesFrontiers in Sports and Active Living
BackgroundAt loads greater than 80% of one repetition maximum in bench press, at the ascending phase of the movement, the barbell decelerates or stops for a short time before it accelerates again during a region named sticking region.
Yousef Hedayati, Roland van den Tillaar
doaj   +2 more sources

Research on Grain Burnback and Internal Ballistic Performance of Solid Rocket Motor under High Overload Conditions Based on Minimum Distance Function [PDF]

open access: yesHangkong bingqi, 2022
The accurate calculation of the burning surface during the grain burnback is the basis for the ballistic performance calculation of solid rocket motor. The overload conditions of the motor can significantly affect the burning surface area, grain burnback
Lin Lin, Shang Yongteng, Li Chongchong, Bai Tao, Guo Mengfei
doaj   +1 more source

Effects of the adhesive layer on the multi-hit ballistic performance of ceramic/metal composite armors

open access: yesJournal of Materials Research and Technology, 2021
The effects of adhesive layer on the multi-hit ballistic performance of ceramic/metal composite armors are studied by the experimental and numerical methods.
Yonghua Shen   +5 more
doaj   +1 more source

The Ballistic Performance of Laminated SiC Ceramics for Body Armor and the Effect of Layer Structure on It

open access: yesApplied Sciences, 2021
Laminated ceramics with weak interface layers have been proven to be effective in toughening ceramics. The energy absorption ability of laminated ceramics may also benefit their ballistic performance.
Yuzhe Hong   +9 more
doaj   +1 more source

Using an Internal State Variable Model Framework to Investigate the Influence of Microstructure and Mechanical Properties on Ballistic Performance of Steel Alloys

open access: yesMetals, 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
doaj   +1 more source

Ballistic performance of a lightweight nacre-inspired armour panel – a numerical study

open access: yesComposites Part C: Open Access, 2022
This paper provides a numerical investigation on the ballistic performance of ceramic composite armour panels with porous architectures inspired by nacre from mollusc shells.
Abdallah Ghazlan   +5 more
doaj   +1 more source

Adaptation of performed ballistic motion [PDF]

open access: yesACM Transactions on Graphics, 2005
Adaptation of ballistic motion demands a technique that can make required adjustments in anticipation of flight periods when only some physically consistent changes are possible. This article describes a numerical procedure that adjusts a physically consistent motion to fulfill new adaptation requirements expressed in kinematic and dynamic constraints.
Adnan Sulejmanpašić, Jovan Popović
openaire   +1 more source

Home - About - Disclaimer - Privacy