Numerički proračun udarnog oštećenja kompozitnog panela ojačanog uzdužnicama pri malim brzinama

master's thesis

• Title (english): Numerical analysis of low velocity impact damage in a composite stringer reinforced panel
• Author: Ivan Perica
• Mentor: Darko Ivančević (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-09-12, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Precision Mechanical Engineering

Abstract

U ovom radu provedena je numerička simulacija udarnog opterećenja pri malim brzinama na uzdužnicom ojačanim kompozitnim panelima, koji su ključni dijelovi konstrukcije zrakoplova. Cilj rada bio je razumjeti mehanizme oštećenja, s naglaskom na delaminaciju uzdužnice od oplate. Dan je uvod u tematiku i prezentiran je teorijski pregled korištenih koncepata i parametara iz referentne literature koji je poslužio kao osnova za izgradnju numeričkog modela u programskom paketu Abaqus. Simulacija je validirana dostupnim eksperimentalnim rezultatima, uključujući fizikalne pojave udara, površine delaminacije i unutarnja oštećenja laminata. Parametri modela koji nisu bili dostupni u referentnom radu preuzeti su iz drugih izvora. Model je korišten za analizu utjecaja varijacija rasporeda slojeva laminata oplate na načine popuštanja kompozitnog panela.

Abstract (english)

This Master thesis presents a numerical simulation of impact loading at low velocities on stringer-reinforced composite panels, which are key components of aircraft structures. The aim of the study was to understand the damage mechanisms, with emphasis on the delamination of the stringer from the skin. An introduction to the topic was provided, and a theoretical review of the concepts and parameters from the reference literature, which served as the basis for building the numerical model in the Abaqus software package. The simulation was validated with available experimental results, including physical phenomena of the impact, delamination areas, and internal damage to the laminate. Model parameters that were not available in the reference work were taken from other sources. The model was used to analyze the impact of laminate layup variations in the skin on the failure modes of the composite panel.

• Keywords: Kompoziti; Numeričke simulacije; MKE; Udarna oštećenja; BVID
• Keywords (english): Composites; Numerical simulations; FEM; Impact damage; BVID
• Language: croatian
• URN:NBN: urn:nbn:hr:235:542664
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering, Mechanics and Robotics, Autonomous Systems, Mechatronics and Robotics; Course: Design; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka strojarstva (sveučilišni/a magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-12-03 20:22:02