Results 81 to 90 of about 54,948 (200)

Computational analysis of projectile impact resistance on aluminium (a356) curvilinear surface reinforced with carbon nanotubes (cnts) for applications in systems of protection [PDF]

, 2017
Computational tests for ballistic impact energy absorption were developed on A356/CNTs composite material with the goal of estimating the improvement of the material’s mechanical properties by the contribution of the CNTs [1].
Martínez Tejada, H.V., Suárez Guerrero, G., Valencia García, M. F.   +2 more
core  

Dynamic mechanical response and failure behaviour of AlMgB14-based ceramic: experimental observation, constitutive modelling and ballistic performance evaluation

Journal of Materials Research and Technology
AlMgB14-based ceramics have emerged as promising materials for ballistic protection due to their ultra-hardness and low density. However, their dynamic mechanical behaviour and ballistic performance remain underexplored.
Yanyan Lu, Zheng Xu, Yushu Zhang, Tao Suo, Jingxian Zhang, Jianhong Hou, Wenzhi Wang   +6 more
doaj   +1 more source

Microswitches with Sputtered Au, AuPd,Au-on-AuPt, and AuPtCu Alloy Electric Contacts [PDF]

, 2006
This paper is the first to report on a new analytic model for predicting microcontact resistance and the design, fabrication, and testing of microelectromechanical systems (MEMS) metal contact switches with sputtered bimetallic (i.e., gold (Au)-on-Au ...
Cortez, R., Coutu, Ronald A., Jr., Kladitis, P. E., Reid, J. R., Strawser, R. E.   +4 more
core   +1 more source

Hypervelocity impact shield [PDF]

, 1991
A hypervelocity impact shield and method for protecting a wall structure, such as a spacecraft wall, from impact with particles of debris having densities of about 2.7 g/cu cm and impact velocities up to 16 km/s are disclosed.
Cour-Palais, Burton G., Crews, Jeanne Lee   +1 more
core   +1 more source

Shield sizing and response equations [PDF]

A consolidated list is presented of meteoroid debris shield equations which have been given in the referenced memorandums. In some cases, equations have been updated; thus, this memorandum supersedes reference 1. The equations are presented in two parts:
Christiansen, Eric L.
core   +1 more source

Prediction of Residual Strength of Carbon/Glass Fiber Hybrid Laminated Composites after Ballistic Impact

Nanjing Hangkong Hangtian Daxue Xuebao
This study investigates the ballistic impact damage characteristics and residual tensile strength of carbon fiber/ glass fiber hybrid laminates using a combination of experimental testing， computed tomography （CT）‑based damage characterization， and ...
CAO Haiying, YU Jian, WANG Zhenxing, XIONG Xin, CUI Wei, ZHOU Chuwei   +5 more
doaj   +1 more source

Artificial Intelligence for Forensic Image Analysis in Bullet Hole Comparison: A Preliminary Study

NDT - Journal of Non-Destructive Testing
The application of artificial intelligence within forensic image analysis marks a significant step forward for the non-destructive examination of evidence, a crucial practice for maintaining the integrity of a crime scene.
Guilherme Pina Cardim, Thiago de Souza Duarte, Henrique Pina Cardim, Wallace Casaca, Rogério Galante Negri, Flávio Camargo Cabrera, Renivaldo José dos Santos, Erivaldo Antônio da Silva, Mauricio Araujo Dias   +8 more
doaj   +1 more source

Inconsistency of threat level in soft armour standards, correlation of experimental tests to bullet X-ray 3D images [PDF]

Fundamental to any ballistic armour standard is the reference projectile that is to be defeated. Typically, for certification, consistency of bullet geometry is assumed.
Attridge, Alex, Barnes-Warden, Jane, Fenne, Paul, Landheer, Dirk, Thornby, John Albert, Williams, M. A., Williams, Tim   +6 more
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Enhanced ballistic and mechanical performance of aluminum nickel phosphorus bronze composites reinforced with TiCN and Y₂O₃ for armored vehicles

Scientific Reports
In response to emerging military tactics and technological advancements, this research investigates the ballistic and mechanical properties of cutting-edge defense-grade aluminum nickel phosphorus bronze (Al-NPB) metal matrix composites (MMCs), enhanced ...
A. Hafeezur Rahman, Dola Sundeep, C. Chandrasekhara Sastry, J. Krishnaiah, Eswaramoorthy K. Varadharaj   +4 more
doaj   +1 more source

Design, Fabrication and Test of Multi-Fiber Laminates [PDF]

Unidirectional and angleply multifiber laminates were tested for improved impact strength and other mechanical properties. The effects of several variables on the mechanical properties of epoxy matrix materials were described.
Novak, R. C., Pike, R. A.
core   +1 more source