Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Experimental and numerical investigation of ballistic impact behaviour of high strength aluminium plates
Download
index.pdf
Date
2019
Author
Başaran, Güralp
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
264
views
152
downloads
Cite This
A hybrid solution method was used to examine the ballistic collision situation to be used in armored vehicle design. This hybrid solution method includes an Artificial Neural Network (ANN) and a Finite Element (FE) solver. MATLAB was used for ANN model, and LSDYNA® was used as FE solver. For this purpose, first ballistic tests were performed, and projectile residual velocities and depth of penetrations were measured. The FE model was confirmed by ballistic tests. After the FE model validation, FE analyses were performed for different armor thicknesses, and the results were transferred in the ANN model. The ANN model and FE method results were compared for different armor thicknesses, and the ANN model was validated. The validated ANN model was transferred to MATLAB® SIMULINK® and a tool that is capable of predicting the results of ballistic collision in a short time.
Subject Keywords
Ballistics.
,
Keywords: ballistics
,
armor
,
bullet
,
Finite Element Analysis
,
neural network.
URI
http://etd.lib.metu.edu.tr/upload/12624920/index.pdf
https://hdl.handle.net/11511/45153
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Optimization of compliant parts of a hybrid trailing edge control surface of a morphing unmanned aerial vehicle
Arslan, Pınar; Gürses, Ercan; Department of Aerospace Engineering (2017)
In this thesis, optimization studies are conducted for compliant parts of a hybrid trailing edge control surface of an unmanned aerial vehicle (UAV). The geometry of the control surface was taken from a previous study conducted in [1], and then regenerated parametrically through Design Modeler tool of ANSYS Workbench v15.0. The finite element model of the control surface is created by using ANSYS Workbench v15.0 Static Structural module. The optimization study of the compliant part is conducted by using Ada...
Experimental Investigation of Viscous Flow Normal to NACA 0012 Airfoil at low Reynolds Numbers
Gunaydınoglu, Erkan; Kurtuluş, Dilek Funda (null; 2018-07-11)
The low Reynolds number aerodynamics at high angle of attack is crucial for the design of unmanned aerial vehicles and wind turbine blades. The current study aims to enhance the insight on the near wake of airfoils normal to free stream. The near wake structure on a NACA 0012 airfoil normal to free-stream is measured with particle image velocimetry in the range of Reynolds number 7000 to 20000. The velocity and vorticity fields of the wake structures are studied and further analysis with Proper Orthogonal D...
Experimental Investigation of Aerodynamics of Flapping-Wing Micro-Air-Vehicle by Force and Flow-Field Measurements
Deng, Shuanghou; Perçin, Mustafa; van Oudheusden, Bas (2016-02-01)
This study explores the aerodynamic characteristics of a flapping-wing micro aerial vehicle (MAV) in hovering configuration by means of force and flowfield measurements. The effects of flapping frequency and wing geometry on force generation were examined using a miniature six-component force sensor. Additional high-speed imaging allowed identification of the notable different deformation characteristics of the flexible wings under vacuum condition in comparison to their behavior in air, illustrating the re...
Experimental and numerical analysis of a bolted connection in steel transmission towers
Baran, Eray; Sen, Gokmen; Draisawi, Ammar (2016-06-01)
This paper presents an integrated numerical and experimental study on a bolted splice connection used in main legs of steel lattice transmission towers. At specific locations, where the number of angle sections in built-up cross section of main leg members changes, the complex geometry around the connection region results in eccentricities in the load path and indirect load transfer. Such complex configurations and uncertainties in the load path have led to overdesigned connections with increased number of ...
Experimental Investigation of Optimal Gap Distance between Rotors of a Quadrotor UAV
Kaya, Dilber Derya; Kutay, Ali Türker; Tekinalp, Ozan (2017-06-09)
The effect of spacing between the rotors of a quadrotor Unmanned Aerial Vehicle (UAV) in hovering flight is investigated. Experiments are conducted to obtain a mathematical relation between the diameter of the rotor and gap distance between each rotor. Constraints such as the maximum thrust force and minimum energy consumption are imposed. Several rotors having different sizes are tested at various RPMs with a changing gap distances, and total thrust produced by four rotors is measured. The results are give...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
G. Başaran, “Experimental and numerical investigation of ballistic impact behaviour of high strength aluminium plates,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Aerospace Engineering., Middle East Technical University, 2019.