Výsledky vyhledávání - "Numerical Algorithms"

Modeling the role of local crystallographic correlations in microstructures of Ti-6Al-4V using a correlated structure visco-plastic self-consistent polycrystal plasticity formulation Autor Riyad, Iftekhar A., Feather, William G., Vasilev, Evgenii, Lebensohn, Ricardo A., McWilliams, Brandon A., Pilchak, Adam L., Knezevic, Marko

“…This paper presents a multi-level crystal plasticity-based simulation framework for modeling mechanical response and microstructure evolution of Ti-6Al-4V with…”
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Coupled time and space homogenization of viscoelastic–viscoplastic composite materials under large numbers of loading cycles Autor Doghri, I., Haddad, M., Tsilimidos, G., Haouala, S.

“…A coupled time and space homogenization formulation is proposed for heterogeneous micro-structures with viscoelastic–viscoplastic (VE–VP) constituents and…”
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The Bounded and Precise Word Problems for Presentations of Groups Autor Ivanov, S. V.

“…We introduce and study the bounded word problem and the precise word problem for groups given by means of generators and defining relations. For example, for…”
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Modeling of the thermo-mechanical response and texture evolution of WE43 Mg alloy in the dynamic recrystallization regime using a viscoplastic self-consistent formulation Autor Zecevic, Miroslav, Knezevic, Marko, McWilliams, Brandon, Lebensohn, Ricardo A.

“…This paper presents a microstructure sensitive model for predicting mechanical response and texture evolution of metals in the dynamic recrystallization…”
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Machine learning-based multi-objective optimization for efficient identification of crystal plasticity model parameters Autor Veasna, Khem, Feng, Zhangxi, Zhang, Qi, Knezevic, Marko

“…A set of constitutive model parameters along with crystallography governs the activation of deformation mechanisms in crystal plasticity. The constitutive…”
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Modelling recrystallization textures driven by intragranular fluctuations implemented in the viscoplastic self-consistent formulation Autor Zecevic, Miroslav, Lebensohn, Ricardo A., McCabe, Rodney J., Knezevic, Marko

“…This paper presents a recrystallization model driven by intragranular orientation gradients and strain energy fields calculated by means of the viscoplastic…”
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Exascale applications: skin in the game Autor Alexander, Francis, Almgren, Ann, Bell, John, Bhattacharjee, Amitava, Chen, Jacqueline, Colella, Phil, Daniel, David, DeSlippe, Jack, Diachin, Lori, Draeger, Erik, Dubey, Anshu, Dunning, Thom, Evans, Thomas, Foster, Ian, Francois, Marianne, Germann, Tim, Gordon, Mark, Habib, Salman, Halappanavar, Mahantesh, Hamilton, Steven, Hart, William, Henry Huang, Zhenyu, Hungerford, Aimee, Kasen, Daniel, Kent, Paul R C, Kolev, Tzanio, Kothe, Douglas B, Kronfeld, Andreas, Luo, Ye, Mackenzie, Paul, McCallen, David, Messer, Bronson, Mniszewski, Sue, Oehmen, Chris, Perazzo, Amedeo, Perez, Danny, Richards, David, Rider, William J, Rieben, Rob, Roche, Kenneth, Siegel, Andrew, Sprague, Michael, Steefel, Carl, Stevens, Rick, Syamlal, Madhava, Taylor, Mark, Turner, John, Vay, Jean-Luc, Voter, Artur F, Windus, Theresa L, Yelick, Katherine

“…As noted in Wikipedia, refers to having 'incurred risk by being involved in achieving a goal', where ' is a synecdoche for the person involved, and is the…”
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Glide mobility of the 1/2[1 1 0](0 0 1) edge dislocation in UO2 from molecular dynamics simulation Autor Lunev, A.V., Kuksin, A.Yu, Starikov, S.V.

“…Both the mechanical properties of oxide nuclear fuel and the high burn-up grain restructuring are known to be related to dislocation motion. Previous studies…”
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Zeroing neural networks: A survey Autor Jin, Long, Li, Shuai, Liao, Bolin, Zhang, Zhijun

“…Using neural networks to handle intractability problems and solve complex computation equations is becoming common practices in academia and industry. It has…”
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On the strain delocalization mechanism of Cu/Nb nanolayered composites with amorphous interfacial layers Autor Wang, Yaodong, Li, Jianjun, Li, Jiejie, Chen, Shaohua

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Numerical algorithms using reproducing kernels for oscillatory boundary value problems Autor Geng, F.Z., Wu, X.Y.

“…As is known, it is perceived as a difficult problem to obtain an effective approximate solution to boundary value problems (BVPs) with highly oscillatory…”
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Characterizing viscoelastic materials via ensemble-based data assimilation of bubble collapse observations Autor Spratt, Jean-Sebastien, Rodriguez, Mauro, Schmidmayer, Kevin, Bryngelson, Spencer H., Yang, Jin, Franck, Christian, Colonius, Tim

“…Viscoelastic material properties at high strain rates are needed to model many biological and medical systems. Bubble cavitation can induce such strain rates,…”
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Study of the interplay between lower-order and higher-order energetic strain-gradient effects in polycrystal plasticity Autor Christodoulou, Paul G., Lebensohn, Ricardo A., Beyerlein, Irene J.

“…Strain-gradient (SG) plasticity refers to a class of non-local theories in which gradients of plastic slip determine the storage of geometrically necessary…”
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Electro-thermal-mechanical coupled crystal plasticity modeling of Ni-based superalloy during electrically assisted deformation Autor Gao, Jia, Li, Hongwei, Sun, Xinxin, Zhang, Xin, Zhan, Mei

“…•An electro-thermal-mechanical coupled model based on crystal plasticity theory.•Targeted effect of electric current on joule heating and dislocation…”
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An implicit formulation of the elasto-plastic self-consistent polycrystal plasticity model and its implementation in implicit finite elements Autor Zecevic, Milovan, Knezevic, Marko

“…•An implicit formulation of the elasto-plastic self-consistent crystal plasticity model is developed.•A system of non-linear equations is suitably defined at…”
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A comparative study between elasto-plastic self-consistent crystal plasticity and anisotropic yield function with distortional hardening formulations for sheet metal forming Autor Feng, Zhangxi, Yoon, Seong-Yong, Choi, Jae-Hyun, Barrett, Timothy J., Zecevic, Milovan, Barlat, Frederic, Knezevic, Marko

“…•Elasto-plastic self-consistent (EPSC) and homogeneous anisotropic hardening (HAH) models are adjusted for alloy AA6022-T4.•The models capture nonlinear…”
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Nonlinear optical properties and applications of 2D materials: theoretical and experimental aspects Autor You, J.W., Bongu, S.R., Bao, Q., Panoiu, N.C.

“…In this review, we survey the recent advances in nonlinear optics and the applications of two-dimensional (2D) materials. We briefly cover the key developments…”
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Towards a greater understanding of serrated flows in an Al-containing high-entropy-based alloy Autor Brechtl, J., Chen, S.Y., Xie, X., Ren, Y., Qiao, J.W., Liaw, P.K., Zinkle, S.J.

“…A serrated flow, which occurs in a material undergoing mechanical deformation, is a complex process of great engineering significance. Here statistical,…”
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A computationally fast and accurate procedure for the identification of the Chaboche isotropic-kinematic hardening model parameters based on strain-controlled cycles and asymptotic ratcheting rate Autor Santus, C., Grossi, T., Romanelli, L., Pedranz, M., Benedetti, M.

“…The Chaboche isotropic-kinematic hardening (CIKH) model provides a versatile and realistic description of the material stress–strain behavior under generic…”
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A model for dislocation creep in polycrystalline Ni-base superalloys at intermediate temperatures Autor Galindo-Nava, E.I., Schlütter, R., Messé, O.M.D.M., Argyrakis, C., Rae, C.M.F.

“…A model for creep at intermediate temperatures in polycrystalline Ni-based superalloys is presented. The model is based on describing stacking fault…”
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