Results 1 to 10 of about 3,155 (225)

Ballistic limit velocity of tungsten alloy spherical fragment penetrating Ti/AlTi-laminated composite target plates [PDF]

Advanced Composites Letters, 2020
To determine the ballistic limit velocity of titanium–titanium tri-aluminide (Ti/Al 3 Ti)-laminated composites under the action of tungsten alloy spherical fragments, a type of 12.7 mm ballistic gun loading system was used to test the tungsten alloy ...
Yingbin Liu, Chufan Yin, Xiaoyan Hu, Meini Yuan   +3 more
doaj   +3 more sources

Modeling the Age-related Decrease in Ballistic Limit Velocity of Polycarbonate Vision Panels Using a Johnson-Cook Material Model Coupled with Variable Failure Criteria

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, Mitchel Polte, Nils Bergström, Vu Ninh Le   +3 more
doaj   +2 more sources

Effect of Material and Structure of Ultra-High-Molecular-Weight Polyethylene Body Armor on Ballistic Limit Velocity: Numerical Simulation. [PDF]

Polymers (Basel)
The material properties and structural characteristics of ballistic composites are crucial to their ballistic performance. A numerical model of a 1.1 g FSP penetrating a UHMWPE target plate was established in this paper. The numerical results show that the failure process of the body armor target plate primarily involves shear failure, interlayer ...
Bian J, Dai K, Lv X, Huang Z, Wu G, Zhang Y.   +5 more
europepmc   +3 more sources

Ballistic limit velocity of small caliber projectiles against SS400 steel plates: Live fire experiments and empirical models

Defence Technology
This study presents the ballistic limit velocity of small caliber projectiles against SS400 steel plate derived from live-fire ballistic experiments. Four different small caliber projectiles were tested against SS400 steel plates of 9 mm, 10 mm, and 12 ...
Jong-Hwan Kim, Seungwon Baik, Jirui Fu, Joon-Hyuk Park   +3 more
doaj   +2 more sources

Investigating the effects of alumina nanoparticles on the impact resistance of polycarbonate nano-composites [PDF]

Archive of Mechanical Engineering, 2022
In this project, two types of treated and untreated alumina nanoparticles with different weight percentages (wt%) of 0.5, 1 and 3% were mixed with polycarbonate matrix; then, the impact ballistic properties of the nano-composite targets made from them ...
Ali Alavi Nia, Saeed Amirchakhmaghi
doaj   +1 more source

Ballistic performance of optimised light weight composite armour

Forces in Mechanics, 2023
This research paper presents a comprehensive investigation into the response of a 3D finite element model when subjected to 7.62 AP projectiles. The study utilises Hetherington's armour composite equation and incorporates the Johnson-Holmquist material ...
Amar Prakash, M. Fasil, N. Anandavalli
doaj   +1 more source

Ballistic properties of curaua-aramid laminated hybrid composites for military helmet

Journal of Materials Research and Technology, 2023
The present research aimed to develop laminated hybrid-composite with aramid woven fabric and curaua non-woven mat, to evaluate the possibility of using as military ballistic helmets.
Natalin Michele Meliande, Michelle Souza Oliveira, Artur Camposo Pereira, Filipe D'Mengeon Pedreiro Balbino, André Ben-Hur da Silva Figueiredo, Sergio Neves Monteiro, Lucio Fabio Cassiano Nascimento   +6 more
doaj   +1 more source

Ballistic-Limit Velocities for 7.62 mm APM2 Bullets and Aluminum Alloy Armor Plates

Journal of Dynamic Behavior of Materials, 2021
In a previous paper, we presented a scaling law for the ballistic-limit velocity for the 7.62 mm APM2 bullet and aluminum armor plates. This scaling law predicts that the ballistic-limit velocity is proportional to the square root of the product of plate thickness and a material strength term. In this note, we present additional ballistic data from the
M. J. Forrestal, T. L. Warren, J. K. Holmen   +2 more
openaire   +2 more sources

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, Toreskås Oda Lunde, Dey Sumita, Børvik Tore   +3 more
doaj   +1 more source

Analytical investigation of impact of blunt projectile with different ended into sandwich panels [PDF]

مجله مدل سازی در مهندسی, 2015
In this paper, an analytical model has been presented for energy absorption of sandwich panels under ballistic impact. Aluminum-foam and composite-foam sandwich panel are investigated in this paper.
seyed sajad jafari, saeid feli
doaj   +1 more source