Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines
Dynamic characteristics of stiffened composite conoidal shells with cutout are analyzed in terms of the natural frequency and mode shapes. A finite element code is developed for the purpose by combining an eight-noded curved shell element with a three-noded curved beam element. The code is validated...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2013/230120 |
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| _version_ | 1832561818878345216 |
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| author | Sarmila Sahoo |
| author_facet | Sarmila Sahoo |
| author_sort | Sarmila Sahoo |
| collection | DOAJ |
| description | Dynamic characteristics of stiffened composite conoidal shells with cutout are analyzed in terms of the natural frequency and mode shapes. A finite element code is developed for the purpose by combining an eight-noded curved shell element with a three-noded curved beam element. The code is validated by solving benchmark problems available in the literature and comparing the results. The size of the cutouts and their positions with respect to the shell centre are varied for different edge constraints of cross-ply and angle-ply laminated composite conoids. The effects of these parametric variations on the fundamental frequencies and mode shapes are considered in details. The results furnished here may be readily used by practicing engineers dealing with stiffened composite conoids with cutouts central or eccentric. |
| format | Article |
| id | doaj-art-0e389956baf742ad92e4d2b6a381d624 |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-0e389956baf742ad92e4d2b6a381d6242025-02-03T01:24:06ZengWileyJournal of Engineering2314-49042314-49122013-01-01201310.1155/2013/230120230120Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection GuidelinesSarmila Sahoo0Department of Civil Engineering, Heritage Institute of Technology, Kolkata 700107, IndiaDynamic characteristics of stiffened composite conoidal shells with cutout are analyzed in terms of the natural frequency and mode shapes. A finite element code is developed for the purpose by combining an eight-noded curved shell element with a three-noded curved beam element. The code is validated by solving benchmark problems available in the literature and comparing the results. The size of the cutouts and their positions with respect to the shell centre are varied for different edge constraints of cross-ply and angle-ply laminated composite conoids. The effects of these parametric variations on the fundamental frequencies and mode shapes are considered in details. The results furnished here may be readily used by practicing engineers dealing with stiffened composite conoids with cutouts central or eccentric.http://dx.doi.org/10.1155/2013/230120 |
| spellingShingle | Sarmila Sahoo Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines Journal of Engineering |
| title | Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines |
| title_full | Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines |
| title_fullStr | Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines |
| title_full_unstemmed | Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines |
| title_short | Dynamic Characters of Stiffened Composite Conoidal Shell Roofs with Cutouts: Design Aids and Selection Guidelines |
| title_sort | dynamic characters of stiffened composite conoidal shell roofs with cutouts design aids and selection guidelines |
| url | http://dx.doi.org/10.1155/2013/230120 |
| work_keys_str_mv | AT sarmilasahoo dynamiccharactersofstiffenedcompositeconoidalshellroofswithcutoutsdesignaidsandselectionguidelines |