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Yield behavior of solution treated and aged ti-6al-4v
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ring, Andrew J. Baker, Eric H. Salem, Jonathan A. Thesken, John C. |
| Copyright Year | 2014 |
| Description | Post yield uniaxial tension-compression tests were run on a solution treated and aged (STA), titanium 6-percent aluminum 4-percent vanadium (Ti-6Al-4V) alloy to determine the yield behavior on load reversal. The material exhibits plastic behavior almost immediately on load reversal implying a strong Bauschinger effect. The resultant stress-strain data was compared to a 1D mechanics model and a finite element model used to design a composite overwrapped pressure vessel (COPV). Although the models and experimental data compare well for the initial loading and unloading in the tensile regime, agreement is lost in the compressive regime due to the Bauschinger effect and the assumption of perfect plasticity. The test data presented here are being used to develop more accurate cyclic hardening constitutive models for future finite element design analysis of COPVs. |
| File Size | 710985 |
| Page Count | 18 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140011332 |
| Archival Resource Key | ark:/13960/t23c12224 |
| Language | English |
| Publisher Date | 2014-06-01 |
| Access Restriction | Open |
| Subject Keyword | Strain Fatigue Load Titanium Alloys Stress-strain Relationships Composite Wrapping Unloading Aluminum Alloys Yield Strength Plastic Properties Plastic Deformation Design Analysis Loads Forces 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 |
