| タイトル | Yield Behavior of Solution Treated and Aged Ti-6Al-4V |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140011332 |
| 著者（英） | Thesken, John C.; Salem, Jonathan A.; Ring, Andrew J.; Baker, Eric H. |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2014-06-01 |
| 言語 | eng |
| 内容記述 | 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. |
| NASA分類 | Air Transportation and Safety |
| レポートNO | E-18921
GRC-E-DAA-TN11730
NASA/TM-2014-218322 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/63003 |
