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master's thesis
Numerička analiza udara projektila u izotropnu višeslojnu ploču
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. urn:nbn:hr:235:726471
Lukač, Filip
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Lukač, F. (2015). Numerička analiza udara projektila u izotropnu višeslojnu ploču (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:726471

Lukač, Filip. "Numerička analiza udara projektila u izotropnu višeslojnu ploču." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:726471

Lukač, Filip. "Numerička analiza udara projektila u izotropnu višeslojnu ploču." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:726471

Lukač, F. (2015). 'Numerička analiza udara projektila u izotropnu višeslojnu ploču', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 01 August 2024, https://urn.nsk.hr/urn:nbn:hr:235:726471

Lukač F. Numerička analiza udara projektila u izotropnu višeslojnu ploču [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2015 [cited 2024 August 01] Available at: https://urn.nsk.hr/urn:nbn:hr:235:726471

F. Lukač, "Numerička analiza udara projektila u izotropnu višeslojnu ploču", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:235:726471

Metadata
TitleNumerička analiza udara projektila u izotropnu višeslojnu ploču
Title (english)Numerical analysis of projectile impact at isotropic layered plate
AuthorFilip Lukač
MentorIvica Smojver (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2015-05-04, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
General Mechanical Engineering (Construction)
Abstract
U radu se daje kratak uvod u osnovne podjele u području terminalne balistike te se prezentiraju pristupi kojima se rješavaju problemi u ovom području. Nakon toga, u drugom poglavlju je opisana problematika materijalnog modela u literaturi i teškoće s implementacijom materijalnog modela u Abaqus/Explicit. Validacija približnog modela provedena je paralelno sa razvojem simulacija i materijalnog modela te je s početne validacije pojedinačnih slučajeva proširena na validaciju na nizu balističkih krivulja za ploče različitih debljina. Nakon proširivanja materijalnog modela i uključivanja karakteristike plastičnog područja projektila, validacija materijalnog modela ploče je pokazala dovoljno dobro poklapanje sa eksperimentalnim krivuljama. Nakon validacije materijalnog modela, u trećem poglavlju su ispitani utjecaji na probijanje provođenjem niza simulacija. Utjecaj kuta udara projektila ispitan je nizom simulacija za slučajeve različitih kuteva udara projektila s ravnim vrhom u ploču debljine 16 mm. Utjecaj vrha projektila ispitan je nizom simulacija za slučajeve udara projektila s koničnim vrhom u ploču debljine 12 mm. Utjecaj konfiguracije mete ispitan je sa tri simulacije udara koničnog projektila u homogenu ploču i višeslojne konfiguracije mete sa i bez razmaka između ploča.
Abstract (english)
A short introduction into the field of terminal ballistics and its characteristic criteria for classifying ballistic impacts is made. After that, in the second chapter, the material model found in the scientific articles is shown and the difficulties with implementing that material models into Abaqus/Explicit is explained. The process of validation of the approximate material model, as it is developed, is shown – from the validation on the individual impact cases to the validation on the series of ballistic limit curves for several target plate thicknesses. The validation of the material model was found sufficiently good after the adjustment of the projectile material model i.e. the inclusion of the plastic behaviour, was made. In the third chapter, a series of simulations were conducted in order to determine the main influences on the penetration. The influence of the obliquity was determined by a series of simulations where the blunt projectile impacted the 16 mm thick plate under different angles. The influence of the projectile nose shape was determined by a series of simulations where the conical projectile impacted the 12 mm thick plate. The influence of the target configuration was determined by three simulations where the conical projectile impacted the homogenous plate, the layered plate with no clearance between two plates and the layered plate with clearance between two plates.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:726471
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-05-22 13:25:42