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- Title
Sensitivity Assessment on Homogenized Stress–Strain Response of Ti-6Al-4V Alloy.
- Authors
Elleithy, Mohamed; Zhao, Hengduo; Acar, Pınar
- Abstract
The objective of this study is to investigate the effects of uncertainty of temperature and crystallographic orientations on the homogenized stress–strain response of Ti-6Al-4V alloy. The dual-phase Ti-6Al-4V alloy is an exceptional candidate for various applications in the aerospace field owing to its remarkable specific strength and significant mechanical properties at elevated temperatures. First, the hardening parameters are calibrated using a crystal plasticity finite element computational model. Once the crystal plasticity model parameters are calibrated by minimizing the error between experimental and predicted stress–strain curve behavior, the sensitivity of the predicted homogenized mechanical behavior to the temperature and crystallographic orientations is also analyzed. The findings of this work can be utilized to predict the alloy's homogenized mechanical properties, along with the characterization of the underlying microstructure at a specified temperature and orientation for a precise volume fraction of alpha and beta phases of the alloy. Furthermore, both the temperature and microstructural orientations are examined under a variation of 2% and 10%, respectively, to evaluate the uncertainty propagation on the mechanical response.
- Subjects
STRAINS &; stresses (Mechanics); ALLOYS; FINITE element method; STRESS-strain curves; HIGH temperatures; TITANIUM alloys
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2024, Vol 76, Issue 6, p2980
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-023-06188-5