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    Impact Testing and Analysis of Composites for Aircraft Engine Fan Cases

    Source: Journal of Aerospace Engineering:;2002:;Volume ( 015 ):;issue: 003
    Author:
    Gary D. Roberts
    ,
    Duane M. Revilock
    ,
    Wieslaw K. Binienda
    ,
    Walter Z. Nie
    ,
    S. Ben Mackenzie
    ,
    Kevin B. Todd
    DOI: 10.1061/(ASCE)0893-1321(2002)15:3(104)
    Publisher: American Society of Civil Engineers
    Abstract: The fan case in a jet engine is a heavy structure because of its size and because of the requirement that it contain a blade released during engine operation. Composite materials offer the potential for reducing the weight of the case. Efficient design, test, and analysis methods are needed to efficiently evaluate the large number of potential composite materials and design concepts. The type of damage expected in a composite case under blade-out conditions was evaluated using a subscale test in which a glass/epoxy composite half-ring target was impacted with a wedge-shaped titanium projectile. Fiber shearing occurred near points of contact between the projectile and target. Delamination and tearing occurred on a larger scale. These damage modes were reproduced in a simpler test in which flat glass/epoxy composites were impacted with a blunt cylindrical projectile. A surface layer of ceramic eliminated fiber shear fracture but did not reduce delamination. Tests on 3D woven carbon/epoxy composites indicated that transverse reinforcement is effective in reducing delamination. A 91-cm (36 in.) diameter full-ring subcomponent was proposed for larger scale testing of these and other composite concepts. Explicit, transient, finite-element analyses indicated that a full-ring test is needed to simulate complete impact dynamics, but simpler tests using smaller ring sections are adequate when the evaluation of initial impact damage is the primary concern.
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      Impact Testing and Analysis of Composites for Aircraft Engine Fan Cases

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    http://yetl.yabesh.ir/yetl1/handle/yetl/44963
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    contributor authorGary D. Roberts
    contributor authorDuane M. Revilock
    contributor authorWieslaw K. Binienda
    contributor authorWalter Z. Nie
    contributor authorS. Ben Mackenzie
    contributor authorKevin B. Todd
    date accessioned2017-05-08T21:16:06Z
    date available2017-05-08T21:16:06Z
    date copyrightJuly 2002
    date issued2002
    identifier other%28asce%290893-1321%282002%2915%3A3%28104%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/44963
    description abstractThe fan case in a jet engine is a heavy structure because of its size and because of the requirement that it contain a blade released during engine operation. Composite materials offer the potential for reducing the weight of the case. Efficient design, test, and analysis methods are needed to efficiently evaluate the large number of potential composite materials and design concepts. The type of damage expected in a composite case under blade-out conditions was evaluated using a subscale test in which a glass/epoxy composite half-ring target was impacted with a wedge-shaped titanium projectile. Fiber shearing occurred near points of contact between the projectile and target. Delamination and tearing occurred on a larger scale. These damage modes were reproduced in a simpler test in which flat glass/epoxy composites were impacted with a blunt cylindrical projectile. A surface layer of ceramic eliminated fiber shear fracture but did not reduce delamination. Tests on 3D woven carbon/epoxy composites indicated that transverse reinforcement is effective in reducing delamination. A 91-cm (36 in.) diameter full-ring subcomponent was proposed for larger scale testing of these and other composite concepts. Explicit, transient, finite-element analyses indicated that a full-ring test is needed to simulate complete impact dynamics, but simpler tests using smaller ring sections are adequate when the evaluation of initial impact damage is the primary concern.
    publisherAmerican Society of Civil Engineers
    titleImpact Testing and Analysis of Composites for Aircraft Engine Fan Cases
    typeJournal Paper
    journal volume15
    journal issue3
    journal titleJournal of Aerospace Engineering
    identifier doi10.1061/(ASCE)0893-1321(2002)15:3(104)
    treeJournal of Aerospace Engineering:;2002:;Volume ( 015 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian