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Behavior of ti-5al-2.5sn eli titanium alloy sheet parent and weld metal in the presence of cracks at 20 k
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Sullivan, T. L. |
| Copyright Year | 1971 |
| Description | Through- and surface-cracked specimens of two thicknesses were tested in uniaxial tension. Surface-cracked specimens were generally found to be stronger than through-cracked specimens with the same crack length. Apparent surface-crack fracture toughness calculated using the Anderson modified Irwin equation remained relatively constant for cracks as deep as 90 percent of the sheet thickness. Subcritical growth of surface cracks was investigated. Comparison of chamber and open air welds showed chamber welds to be slightly tougher. Both methods produced welds with toughness that compared favorably with that of the parent metal. Weld efficiencies were above 94 percent. |
| File Size | 1633605 |
| Page Count | 33 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19720005262 |
| Archival Resource Key | ark:/13960/t7tn1zz5n |
| Language | English |
| Publisher Date | 1971-11-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Thickness Titanium Alloys Cracks Toughness Fracture Mechanics Weld Strength Tensile Tests Cryogenics 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 |
