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Stress Analysis of Different Shaped Holes on a Packaging Material
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. (Structural Mechanics)
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. (Structural Mechanics)
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In packaging industries, the demand for usage of Low Density Poly Ethylene foil is of profound interest. In the past, research was carried out on finite and infinite plates with varying crack lengths but having constant crack width. In this thesis, a detailed analysis on crack initiation is carried out on finite plates by varying width of the hole. The hole shapes for stress analysis include circle, ellipse and rectangular notch. Initially, maximum stress is found out using Linear Elastic Fracture Mechanics (LEFM) theory and compared with Finite element method (FEM) results. Secondly using Elastic Plastic Fracture Mechanics theory (EPFM), critical stress and geometric function are evaluated theoretically by Modified Strip Yield Model (MSYM) and numerically by ABAQUS. Finally, a tensile test is conducted to validate the theoretical and numerical results.  By varying the width of the hole, a study on the parameters like critical stress, geometric function is presented. A conclusion is drawn that the effect of hole width should be considered when calculating fracture parameters. 

Place, publisher, year, edition, pages
2016. , 85 p.
Keyword [en]
ABAQUS, Crack Initiation, EPFM, Geometric function, Hole shapes, LDPE, LEFM, Mode I tensile loading
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-13613OAI: oai:DiVA.org:bth-13613DiVA: diva2:1056912
Subject / course
MT2525 Masters Thesis (120 credits) in Mechanical Engineering with emphasis on Structural Engineering
Educational program
MTAMT Master of Science Programme in Mechanical Engineering with emphasis on Structural Mechanics
Presentation
2016-10-26, J1640, Blekinge Tekniska Hogskola, Karlskrona, 09:15 (English)
Supervisors
Examiners
Available from: 2016-12-16 Created: 2016-12-15 Last updated: 2016-12-16Bibliographically approved

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BTH2016Vamsi(3823 kB)324 downloads
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Parimi, Venkata Naga Sai Krishna JanardhanEluri, Vamsi
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • Other locale
More languages
Output format
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  • asciidoc
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