Iman Javaheri
Langley Research Center
7 Papers
Iman Javaheri is an academic researcher from Langley Research Center. The author has contributed to research in topics: Computer science & Microstructure. The author has an hindex of 2, co-authored 3 publications. Previous affiliations of Iman Javaheri include University of Michigan.
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Papers
Polycrystalline Microstructure Reconstruction Using Markov Random Fields and Histogram Matching
TL;DR: This paper examines the algorithm’s accurate representation of orientations and morphologies, encompassing a variety of micrographs from electron backscatter diffraction (EBSD) and polarized light microscopy.
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Three-dimensional crystal plasticity simulations using peridynamics theory and experimental comparison
TL;DR: In this paper, a mesh-free non-ordinary state-based peridynamics (PD) technique is developed for simulating the elasto-plastic deformation of 3D polycrystalline aggregates of a magnesium alloy.
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Constrained Voronoi models for interpreting surface microstructural measurements
TL;DR: In this paper, a generalized inverse Voronoi problem is used to grow an approximate representation of the 3D microstructure from a surface electron backscatter diffraction (EBSD) image.
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Large-Scale Synthesis of Metal Additively-Manufactured Microstructures Using Markov Random Fields
TL;DR: In this article , a data-driven framework is developed and examined for creating spatially-varying crystallographic textures over component-scale Computer-Aided Design (CAD) models, where a set of three orthogonal 2D micrographs of an additively manufactured (AM) specimen are first obtained experimentally through Electron Backscatter Diffraction (EBSD) and subsequently converted to a 3D representative unit cell using the Markov Random Field (MRF) technique.
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Uncertainty quantification of metallic microstructures using principal image moments
Arulmurugan Senthilnathan,Iman Javaheri,Hengduo Zhao,Veera Sundararaghavan,M. DeGraef,Pinar Acar +5 more
TL;DR: In this paper , the effects of the epistemic uncertainty on homogenized mechanical properties by characterizing the variations in the microstructural features using a shape descriptor based on the concept of moment invariants was addressed.
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