Zobrazeno 1 - 10
of 269
pro vyhledávání: '"Ricardo A. Lebensohn"'
Publikováno v:
npj Computational Materials, Vol 9, Iss 1, Pp 1-16 (2023)
Abstract Recent developments integrating micromechanics and neural networks offer promising paths for rapid predictions of the response of heterogeneous materials with similar accuracy as direct numerical simulations. The deep material network is one
Externí odkaz:
https://doaj.org/article/2d7d175801aa40f29c4de9f948289b87
Autor:
Aaron E. Tallman, Reeju Pokharel, Darshan Bamney, Douglas E. Spearot, Bjorn Clausen, Ricardo A. Lebensohn, Donald Brown, Laurent Capolungo
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-18 (2022)
Abstract Non-destructive evaluation of plastically deformed metals, particularly diffraction line profile analysis (DLPA), is valuable both to estimate dislocation densities and arrangements and to validate microstructure-aware constitutive models. T
Externí odkaz:
https://doaj.org/article/1679ddb38596414b86988379483a7fc7
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-12 (2021)
Models of the viscosity evolution of mantle rocks are central to analyses of postseismic deformation but constraints on underlying physical processes are lacking. Here, the authors present measurements of microscale stress heterogeneity in olivine su
Externí odkaz:
https://doaj.org/article/a8ec756eb1fc4a05a9b779bbfb6eb609
Publikováno v:
Advanced Modeling and Simulation in Engineering Sciences, Vol 7, Iss 1, Pp 1-32 (2020)
Abstract A novel thermo-elastoplastic self-consistent homogenization model for granular materials that exhibit inter-granular plasticity is presented. The model, TEPSCA, is made possible by identifying a new inter-granular plastic Eshelby-like tensor
Externí odkaz:
https://doaj.org/article/f3247418b4224735bef627538f3be7b4
Autor:
Miroslav Zecevic, Ricardo A. Lebensohn, Michael Rogers, Jacob Moore, Vincent Chiravalle, Evan Lieberman, Daniel Dunning, Galen Shipman, Marko Knezevic, Nathaniel Morgan
Publikováno v:
Applications in Engineering Science, Vol 6, Iss , Pp 100040- (2021)
The viscoplastic self-consistent (VPSC) formulation is extended into a generalized material model/code (VPSC-GMM) that can be easily called by different explicit and implicit boundary-value problem solvers, including high-performance parallel computi
Externí odkaz:
https://doaj.org/article/c431d1dce1684ed893475efbf016d4bf
Publikováno v:
Comptes Rendus. Physique
Comptes Rendus. Physique, Académie des sciences (Paris), 2021, 22 (S3), pp.1-18. ⟨10.5802/crphys.54⟩
Comptes Rendus. Physique, Académie des sciences (Paris), 2021, 22 (S3), pp.1-18. ⟨10.5802/crphys.54⟩
International audience; In this contribution, an elasto-viscoplastic fast Fourier transform-based (EVPFFT) numerical implementation of the Mesoscale Field Dislocation Mechanics (MFDM) formulation, called MFDM-EVPFFT, is applied to study the reversibl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::732186c23c6e72b7e4e135de7712a977
https://doi.org/10.5802/crphys.54
https://doi.org/10.5802/crphys.54
Autor:
Miroslav Zecevic, Ricardo A. Lebensohn
Publikováno v:
International Journal for Numerical Methods in Engineering. 122:7536-7552
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e564df5a2c74b515f8abbaf24b59b88c
https://doi.org/10.1002/nme.6841
https://doi.org/10.1002/nme.6841
Autor:
Adnan Eghtesad, Qixiang Luo, Shun-Li Shang, Ricardo A. Lebensohn, Marko Knezevic, Zi-Kui Liu, Allison M. Beese
Publikováno v:
International Journal of Plasticity. 166:103646
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1b3bbae736c2c05483b46473a7dc0be
https://doi.org/10.1016/j.ijplas.2023.103646
https://doi.org/10.1016/j.ijplas.2023.103646
Autor:
Javier Segurado, Ricardo A. Lebensohn
Publikováno v:
Computational Mechanics. 68:981-1001
A method based on the Fast Fourier Transform is proposed to obtain the dispersion relation of acoustic waves in heterogeneous periodic media with arbitrary microstructures. The microstructure is explicitly considered using a voxelized Representative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b067e6706f3ff5648d5a9bf3f63fe545
https://doi.org/10.1007/s00466-021-02055-9
https://doi.org/10.1007/s00466-021-02055-9
Publikováno v:
Integrating Materials and Manufacturing Innovation. 10:157-176
The efficacy of an elasto-viscoplastic fast Fourier transform (EVPFFT) code was assessed based on blind predictions of micromechanical fields in a sample of Inconel 625 produced with additive manufacturing (AM) and experimentally characterized with h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39c2b8aaa8383a4599df2e75de8475ed
https://doi.org/10.1007/s40192-021-00211-w
https://doi.org/10.1007/s40192-021-00211-w