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Stress-intensity factors for internal surface cracks in cylindrical pressure vessels
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Raju, I. S. Newman Jr., J. C. |
| Copyright Year | 1979 |
| Description | The stress intensity factors were calculated by a three dimensional finite element method. The finite element models employed singularity elements along the crack front and linear strain elements elsewhere. The models had about 6500 degrees of freedom. The stress intensity factors were evaluated from a nodal force method. An equation for the stress intensity factors was obtained form the results of the present analysis. The equation applies over a wide range of configuration parameters and was within about 5 percent of the present results. A comparison was made between the present results and other analyses of internal surface cracks in cylinders. The results from a boundary integral equation method were in agreement (+ or - 2 percent) and those from another finite element were in fair agreement (+ or - 8 percent) with the present results. |
| File Size | 569979 |
| Page Count | 13 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19790019361 |
| Archival Resource Key | ark:/13960/t82k17n65 |
| Language | English |
| Publisher Date | 1979-07-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Finite Element Method Nodes Standing Waves Fractures Materials Numerical Analysis Stress Distribution Pressure Vessels Surface Cracks Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
