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Dynamic pulse buckling of composite shells subjected to external blast
- Source :
-
Composite Structures . Jun2010, Vol. 92 Issue 7, p1716-1727. 12p. - Publication Year :
- 2010
-
Abstract
- Abstract: Dynamic pulse buckling of woven E-Glass/Vinyl Ester and laminated E-Glass/Epoxy cylindrical shells subjected to uniform overpressure and asymmetric pressure pulse (side-on explosion) were examined. The solutions for the radial shell deformations were represented by Mathieu differential equations. The dynamic instability of the shells was determined from a Mathieu stability diagram. It was found that the stability of the shells depended on lay-up, aspect ratio as well as impulse distribution. The stable vibration response of the shells with side-on explosion compared well with finite element solutions using a Dynamic, Implicit analysis in ABAQUS Standard. First-ply failure of the woven E-Glass/Vinyl Ester shell with side-on explosion was predicted using a modified Hashin–Rotem failure criterion. It was shown that the thinner woven E-Glass/Vinyl Ester shells were more likely to fail by dynamic instability, whereas the thicker woven E-Glass/Vinyl Ester shells were more likely to fail by first-ply failure. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02638223
- Volume :
- 92
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Composite Structures
- Publication Type :
- Academic Journal
- Accession number :
- 48149385
- Full Text :
- https://doi.org/10.1016/j.compstruct.2009.12.013