Results 21 to 30 of about 9,392,392 (234)

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

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

open access: yesJournal 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   +3 more
doaj   +1 more source

The failure of a tungsten carbide-cobalt cored projectile penetrating a hard target [PDF]

open access: yes, 2010
Experimental results are presented from an investigation of the parameters of a ceramic-faced armour system that are required to induce damage in a tungsten carbide - cobalt (WC-Co) penetrator.
Woolmore, Nicola J.
core   +7 more sources

Simulation on a Composite Laminate Subjected to Ballistic Impact [PDF]

open access: yesAdvances in Physics Research, 2014
A finite element model was developed to study the damage mechanisms of composite laminates under high velocity impact conditions. Modified Hashin failure criteria were used for the fiber breakage prediction. Cohesive elements were defined between two adjacent layers in the target laminate for the prediction of delamination initiation and propagation ...
Xiang Li   +2 more
openaire   +1 more source

Failure simulation of stratified panel under ballistic impact

open access: yesJournal of Engineering Sciences and Innovation, 2022
"This paper presents an analysis of an isothermal model for an impact simulation in order to use the results for virtually optimizing the thickness of the panel for the same threat. The target has a stratified structure; the connection between layers is ""bonded"", with ""breakable"" detachment when there is exceeded a value for tensile stress and ...
GEORGE GHIOCEL OJOC   +2 more
openaire   +1 more source

Numerical simulation of ballistic impact on composite laminates [PDF]

open access: yesInternational Journal of Impact Engineering, 2005
Abstract The paper reports experimental and numerical simulation of ballistic impact problems on thin composite laminated plates reinforced with Kevlar 29. Ballistic impact was imparted with simulated fragments designed in accordance with STANAG-2920 on plates of different thickness.
M.A.G. Silva   +2 more
openaire   +1 more source

Mechanical behavior of single-layer graphdiyne via supersonic micro-projectile impact

open access: yesNano Materials Science, 2022
The mechanical behavior of single-layer graphdiyne (SLGDY) subjected to high-velocity micro-ballistic impacts is analyzed by molecular dynamics (MD) simulations. The ballistic limits of SLGDY is obtained for the first time.
Kailu Xiao   +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

Equivalent protection factor of bi-layer ceramic metal structures

open access: yesDefence Technology, 2022
With increasing ballistic threat levels, there is ever more demand on developing ceramic armor designs with improved performance. This paper presents finite element simulations that investigate the performance of silicon carbide ceramic with steel 4340 ...
Govind Gour   +3 more
doaj   +1 more source

Application of meshless methods for pistol bullets modelling [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2021
The paper presents an analysis of applicability of two meshless methods for pistol bullets modelling based on an example of a 9 mm Parabellum. The studies included the following methods: Smoothed Particle Hydrodynamics (SPH) method and Smoothed Particle ...
Piotr Kędzierski, Julia Watorowska
doaj   +1 more source

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