Journal
COMPUTATIONAL MECHANICS
Volume 61, Issue 1-2, Pages 55-70Publisher
SPRINGER
DOI: 10.1007/s00466-017-1467-3
Keywords
FFT based elasto-viscoplastic micromechanical model; Synthetic microstructure generation; 3D materials science; Dual phase titanium alloys; Additive manufacturing
Funding
- National Science Foundation [DMREF-1435544]
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1435544] Funding Source: National Science Foundation
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1606567, 1434462] Funding Source: National Science Foundation
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The present study is devoted to the creation of a process-structure-property database for dual phase titanium alloys, through a synthetic microstructure generation method and a mesh-free fast Fourier transform based micromechanical model that operates on a discretized image of the microstructure. A sensitivity analysis is performed as a precursor to determine the statistically representative volume element size for creating 3D synthetic microstructures based on additively manufactured Ti-6Al-4V characteristics, which are further modified to expand the database for features of interest, e.g., lath thickness. Sets of titanium hardening parameters are extracted from literature, and The relative effect of the chosen microstructural features is quantified through comparisons of average and local field distributions.
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