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Crack propagation and arrest in pressurized containers
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Delale, F. Erdogan, F. Owczarek, J. A. |
| Copyright Year | 1976 |
| Description | The problem of crack propagation and arrest in a finite volume cylindrical container filled with pressurized gas is considered. It is assumed that the cylinder contains a symmetrically located longitudinal part-through crack with a relatively small net ligament. The net ligament suddenly ruptures initiating the process of fracture propagation and depressurization in the cylinder. Thus the problem is a coupled gas dynamics and solid mechanics problem the exact formulation of which does not seem to be possible. The problem is reduced to a proper initial value problem by introducing a dynamic fracture criterion which relates the crack acceleration to the difference between a load factor and the corresponding strength parameter. The results indicate that generally in gas filled cylinders fracture arrest is not possible unless the material behaves in a ductile manner and the container is relatively long. |
| File Size | 4275167 |
| Page Count | 36 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760023519 |
| Archival Resource Key | ark:/13960/t3324qn4w |
| Language | English |
| Publisher Date | 1976-03-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Solid Mechanics Pressure Vessels Gas Dynamics Ductility Cylindrical Tanks Dynamic Loads Surface Cracks Graphs Charts Crack Propagation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
