Dislocation structures in micron-sized Ni single crystals produced via tension–compression cyclic loading

Authors: Sumigawa, Takashi, Kawakatsu, Nobutaka, Tobise, Akihiro, Sugisaka, Kota, Takahashi, Yoshimasa, Arai, Shigeo, Abe, Masataka, Shima, Hiroyuki, Umeno, Yoshitaka

Source: In Acta Materialia 15 September 2024 277

Unique damage process in micro-sized copper single crystal with double-slip orientation in response to near-[112] tension-compression fatigue

Authors: Sumigawa, Takashi, Onozuka, Sota, Kim, Byungwoon, Abe, Masataka, Shima, Hiroyuki, Umeno, Yoshitaka, Kitamura, Takayuki

Source: In Materials Science & Engineering A September 2024 909

Degradation of molecular structure and residual strength of polycarbonate under cyclic loading: Insights from coarse-grained molecular dynamics simulation

Authors: Leelaprachakul, Tatchaphon, Kubo, Atsushi, Umeno, Yoshitaka

Source: In Computational Materials Science May 2024 240

Characteristic fatigue damage near the Σ3(111) coherent twin boundary in micron-sized copper specimen

Authors: Kim, Byungwoon, Yasui, Chihiro, Abe, Masataka, Shima, Hiroyuki, Umeno, Yoshitaka, Sumigawa, Takashi

Source: In Materials Science & Engineering A May 2024 899

Scaling law for the onset of the surface wrinkling of multilayer tubes

Authors: Sato, Motohiro, Ishigami, Kazusa, Kato, Hiroyuki, Umeno, Yoshitaka, Shima, Hiroyuki

Subject Terms: Condensed Matter - Soft Condensed Matter, Condensed Matter - Materials Science, Physics - Applied Physics

Access URL: http://arxiv.org/abs/2008.03422

Adsorption property of fatty acid on iron surface with $\Sigma$3(111) grain boundary

Authors: Lobzenko, Ivan, Shiihara, Yoshinori, Umeno, Yoshitaka, Todaka, Yoshikazu

Subject Terms: Physics - Chemical Physics

Access URL: http://arxiv.org/abs/2003.03061

Surface outflow effect on dislocation structures in micrometer-sized metals

Authors: Tobise, Akihiro, Shima, Hiroyuki, Akiba, Yuri, Umeno, Yoshitaka, Kawai, Emi, Kubo, Atsushi, Abe, Masataka, Sumigawa, Takashi

Source: In Extreme Mechanics Letters December 2023 65

Atomistic simulation for initiation of crystal slip deformation from surface of nanoscale copper single-crystal nanowires

Authors: Kawai, Emi, Kubo, Atsushi, Umeno, Yoshitaka

Source: In Computational Materials Science 25 June 2023 226

On the atomistic energetics of carbon nanotube collapse from AIREBO potential

Authors: Umeno, Yoshitaka, Yachi, Yu, Sato, Motohiro, Shima, Hiroyuki

Subject Terms: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Physics - Applied Physics, Physics - Computational Physics

Access URL: http://arxiv.org/abs/1806.04939

Effect of grain boundary on the friction coefficient of pure Fe under the oil lubrication

Authors: Adachi, Nozomu, Matsuo, Yasutaka, Todaka, Yoshikazu, Fujimoto, Mikiya, Hino, Masahiro, Mitsuhara, Masatoshi, Oba, Yojiro, Shiihara, Yoshinori, Umeno, Yoshitaka, Nishida, Minoru

Source: In Tribology International March 2021 155

Homogenized model of environmental barrier coatings for evaluation of energy release rate

Authors: Kawai, Emi, Kubo, Atsushi, Umeno, Yoshitaka

Source: International journal of applied ceramic technology. 18(5):1630-1640

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100125725912.0x000001&indx=1&recIds=ETOCvdc_100125725912.0x000001

Coarse-grained molecular dynamics simulation of deformation and fracture in polycarbonate: Effect of molar mass and entanglement

Authors: Umeno, Yoshitaka, Kubo, Atsushi, Albina, Jan-Michael

Source: In Theoretical and Applied Fracture Mechanics October 2020 109

Spot–Ladder Selection of Dislocation Patterns in Metal Fatigue.

Authors: Shima, Hiroyuki¹ (AUTHOR) hshima@yamanashi.ac.jp, Umeno, Yoshitaka² (AUTHOR), Sumigawa, Takashi³ (AUTHOR)

Source: Symmetry (20738994). May2023, Vol. 15 Issue 5, p1028. 17p.

Subject Terms: *METAL fatigue, *DISLOCATIONS in metals, *BIFURCATION diagrams, *CYCLIC fatigue, *SHEAR strain, *NONLINEAR analysis

Construction of master yield stress curves for polycarbonate: A coarse-grained molecular dynamics study

Authors: Kubo, Atsushi, Albina, Jan-Michael, Umeno, Yoshitaka

Source: In Polymer 26 August 2019 177:84-90

Inductive Determination of Rate-Reaction Equation Parameters for Dislocation Structure Formation Using Artificial Neural Network.

Authors: Umeno, Yoshitaka¹ (AUTHOR) umeno@iis.u-tokyo.ac.jp, Kawai, Emi¹ (AUTHOR), Kubo, Atsushi¹ (AUTHOR), Shima, Hiroyuki² (AUTHOR), Sumigawa, Takashi³ (AUTHOR)

Source: Materials (1996-1944). Mar2023, Vol. 16 Issue 5, p2108. 14p.

Subject Terms: *DISLOCATION structure, *REACTION-diffusion equations, *DIFFERENTIAL equations, *MACHINE learning, *THIN films, *ARTIFICIAL neural networks, *EQUATIONS

Simulation of Material Strength: From Nano to Macroscale

Authors: Umeno, Yoshitaka

Source: Shimyurēshon. 39(1):12-18

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCRN623605163&indx=1&recIds=ETOCRN623605163

Coarse-Grained Molecular Dynamics Simulations of Nanoscale Roughness Effects on Oil Film Delamination.

Authors: Deng, Shizhe, Kubo, Atsushi, Todaka, Yoshikazu, Shiihara, Yoshinori, Mitsuhara, Masatoshi, Umeno, Yoshitaka

Source: Tribology Letters; Sep2024, Vol. 72 Issue 3, p1-12, 12p

First-Principles Analysis of Deformation and Fracture Properties of Semiconductors

Authors: Kubo, Atsushi, Umeno, Yoshitaka

Source: In Procedia Structural Integrity 2019 23:372-377

Coarse-grained molecular dynamics simulation of deformation and fracture in polycarbonate: Effect of loading mode, strain rate, temperature and molar mass

Authors: Umeno, Yoshitaka, Kubo, Atsushi, Albina, Jan-Michael

Source: In Procedia Structural Integrity 2019 23:348-353

Axial buckling behavior of single-walled carbon nanotubes: Atomistic structural instability analysis

Authors: Sato, Masanobu, Shima, Hiroyuki, Sato, Motohiro, Umeno, Yoshitaka

Source: In Physica E: Low-dimensional Systems and Nanostructures September 2018 103:130-142