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Buckling behavior of compression-loaded composite cylindrical shells with reinforced cutouts
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hilburger, Mark W. Sarnes Jr., James H. |
| Copyright Year | 2004 |
| Description | Results from a numerical study of the response of thin-walled compression-loaded quasi-isotropic laminated composite cylindrical shells with unreinforced and reinforced square cutouts are presented. The effects of cutout reinforcement orthotropy, size, and thickness on the nonlinear response of the shells are described. A nonlinear analysis procedure has been used to predict the nonlinear response of the shells. The results indicate that a local buckling response occurs in the shell near the cutout when subjected to load and is caused by a nonlinear coupling between local shell-wall deformations and in-plane destabilizing compression stresses near the cutout. In general, reinforcement around a cutout in a compression-loaded shell is shown to retard or eliminate the local buckling response near the cutout and increase the buckling load of the shell. However, some results show that certain reinforcement configurations can cause an unexpected increase in the magnitude of local deformations and stresses in the shell and cause a reduction in the buckling load. Specific cases are presented that suggest that the orthotropy, thickness, and size of a cutout reinforcement in a shell can be tailored to achieve improved buckling response characteristics. |
| File Size | 24001037 |
| Page Count | 25 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20040112013 |
| Archival Resource Key | ark:/13960/t50g8mt83 |
| Language | English |
| Publisher Date | 2004-09-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Cylindrical Shells Finite Element Method Isotropy Numerical Analysis Deformation Openings Reinforcement Structures Thin Walls Compression Loads Nonlinearity Composite Structures Buckling Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
