Please use this identifier to cite or link to this item:
http://hdl.handle.net/10603/287102
Title: | Numerical Investigation On Effect of Geometric Material and load Parameters on strength of composite Panels with cutouts |
Researcher: | Anoopkumar S |
Guide(s): | Rajesh R |
Keywords: | Engineering and Technology,Engineering,Engineering Mechanical |
University: | Noorul Islam Centre for Higher Education |
Completed Date: | 16/08/2019 |
Abstract: | ABSTRACT newlineCompositepanelsarewidelyusedasstructuralmembersduetotheirhighstrengthtoweight ratio. Many applications of such materials can be seen in marine, sports, architecture, automobile, aerospace and space domains, In order to reduce further weight, cutouts or notchesareintroducedinthesemembers. Thesecutoutsalsoserveasman-holesforservice purpose,aswellasforpassingelectricorfuellines. Anaircraftwingribisatypicalexample ofsuchacompositepanel. Evenwhilecompositeswithholesorcutoutsprovidegreatsavinginweightcomparedto metallicstructures,thepresenceofholesitselfleadstostrengthreduction. Thereductionin strengthisduetoconcentrationofstressaroundthevicinityoftheholewhilethestructureis underload. So,thestrengthreductionduetoholesorcutoutsisamajorfactorfordesigners while designing structures. Compared to isotropic materials like metals, the prediction of failure for composites with holes is seen to be diand#64259;cult. Structures can also have multiple holesforutilitypurposesaswellasforenhancedweightreduction. Proximityofsuchholes are also seen to intensify the stress concentration eand#64256;ects in structural panels under loading. This is explained in literature by a quothole interaction eand#64256;ectquot in which the stress and#64257;eld around one hole interacts with that of a nearby hole due to which stresses in the areas between the holesincreases. Diand#64256;erent sized and shaped holes/cutouts are used in composites structural members, which may serve for diand#64256;erent purposes, such as material removal for lightening, hole for rivets,bolts,orpins,andmanholeusedforinspectionandrepairpurpose. Thesecutouts,in turn, introduce stress concentration near the cutout in such members leading to weakening ofthestructure. Thestressesdevelopednearthecutoutitselfdependsonmanyfactorssuch as shape of the cutout, size of the cutout, proximity of another hole, edge interaction etc. For and#64257;ber composites, the stress concentration eand#64256;ect also depends on other factors like and#64257;ber orientation,and#64257;bermaterial,matrixmaterialetc. Inshort,thestrengthofcompositewithhole mainlydependsonthreemajorparame |
Pagination: | 136 |
URI: | http://hdl.handle.net/10603/287102 |
Appears in Departments: | Department of Mechanical Engineering |
Files in This Item:
File | Description | Size | Format | |
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acknowledgement.pdf | Attached File | 188.33 kB | Adobe PDF | View/Open |
certificate.pdf | 146.01 kB | Adobe PDF | View/Open | |
chapter_1.pdf | 333.44 kB | Adobe PDF | View/Open | |
chapter_2.pdf | 588.88 kB | Adobe PDF | View/Open | |
chapter_3.pdf | 737.86 kB | Adobe PDF | View/Open | |
chapter_4.pdf | 659.05 kB | Adobe PDF | View/Open | |
chapter_5.pdf | 426.06 kB | Adobe PDF | View/Open | |
chapter_6.pdf | 2.64 MB | Adobe PDF | View/Open | |
chapter_7.pdf | 130.69 kB | Adobe PDF | View/Open | |
references.pdf | 3.84 MB | Adobe PDF | View/Open | |
title page.pdf | 93.75 kB | Adobe PDF | View/Open |
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