Can changes in deformation regimes be inferred from crystallographic preferred orientations in polar ice?

Autor: M.-G. Llorens, A. Griera, P. D. Bons, I. Weikusat, D. J. Prior, E. Gomez-Rivas, T. de Riese, I. Jimenez-Munt, D. García-Castellanos, R. A. Lebensohn

Publikováno v: The Cryosphere, Vol 16, Pp 2009-2024 (2022)

Creep due to ice flow is generally thought to be the main cause for the formation of crystallographic preferred orientations (CPOs) in polycrystalline anisotropic ice. However, linking the development of CPOs to the ice flow history requires a proper

Externí odkaz: https://doaj.org/article/fad3070250154be4bf2eff3bb4cd3dfd

Comparing local deformation measurements to predictions from crystal plasticity during reverse loading of an aerospace alloy

Autor: R. A. Lebensohn, J. Quinta da Fonseca, Michael Atkinson

Publikováno v: Atkinson, M, Lebensohn, R A & Quinta da Fonseca, J 2019, ' Comparing local deformation measurements to predictions from crystal plasticity during reverse loading of an aerospace alloy ' . https://doi.org/10.1088/1757-899x/580/1/012028

Cyclic loading is of great importance in aerospace applications but the origins of the change in flow stress with load path are poorly understood and difficult to predict. Many crystal plasticity models are capable of modelling macroscopic flow behav

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a11c3a7b86e0f6dd670b9a971840bf2
https://doi.org/10.1088/1757-899x/580/1/012028

Yield Loci Calculation of Hexagonal Materials Using a Selfconsistent Polycrystalline Model

Autor: R. A. Lebensohn, C. N. Tomé

Publikováno v: Textures and Microstructures. 26:513-529

Polycrystalline models are used for the calculation of the yield loci of hcp aggregates with different crystallographic textures. Predictions are made using both a classical Taylor Full Constraints (FC) approach and a viscoplastic selfconsistent (VPS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3571604442200e93a97ef7f56f7327e7
https://doi.org/10.1155/tsm.26-27.513

An Elastoplastic Finite Element Modeling Coupled with Orientation Image based Micromechanical Approach

Autor: S.-J. Kim, D. H. Kim, K. H. Oh, A. D. Rollett, R. A. Lebensohn, H. N. Han, F. Barlat, Y. H. Moon, M. G. Lee

Publikováno v: AIP Conference Proceedings.

An efficient formula, which is based on fast Fourier transform (FFT) algorithm and orientation image, was implemented into an elasto‐plastic finite element method, in order to calculate the plastic deformation of polycrystalline material with intra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d17d0698db1097a309394f72e14956b
https://doi.org/10.1063/1.3457498

Hybrid, Multiscale Numerical Simulations of the Equal Channel Angular Pressing (ECAP) using the Crystal Plasticity Theory.

Autor: WÓJCIK, M.¹ m.wojcik@prz.edu.pl

Publikováno v: Archives of Metallurgy & Materials. 2023, Vol. 68 Issue 4, p1649-1655. 7p.