Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Ishida, Takato"'
Based on a recent simulation study [Masubuchi et al., Macromolecules, 56, 9359 (2023)], the cycle rank plays a significant role in determining the fracture characteristics of network polymers. However, the study only considered energy-minimized netwo
Externí odkaz:
http://arxiv.org/abs/2409.12449
Autor:
Oishi, Tatsuma, Koide, Yusuke, Ishida, Takato, Uneyama, Takashi, Masubuchi, Yuichi, Müller-Plathe, Florian
Although the reverse non-equilibrium molecular dynamics (RNEMD) simulation method has been widely employed, the range of applicability is yet to be discussed. In this study, for the first time, we systematically examine the method against an unentang
Externí odkaz:
http://arxiv.org/abs/2407.17031
Despite many attempts, the relation between fracture and structure of polymer networks is yet to be clarified. For this problem, a recent study for phantom chain simulations [Macromolecules, 56, 9359 (2023)] has demonstrated that the fracture charact
Externí odkaz:
http://arxiv.org/abs/2406.09741
Autor:
Masubuchi, Yuichi, Guo, Hong-Xia, Wang, Fan, Khomami, Bamim, Boudaghi-Khajehnobar, Mahdi, Doi, Yuya, Ishida, Takato, Uneyama, Takashi
Slip-spring models are valuable tools for simulating entangled polymers, bridging the gap between bead-spring models with excluded volume and network models with presumed reptation motion. This study focuses on the DPD-SS (Dissipative Particle Dynami
Externí odkaz:
http://arxiv.org/abs/2401.17565
This study presents a coarse-grained molecular dynamics simulation model to investigate the process of oxidative aging in polymers. The chemical aging effect is attributed to the auto-oxidation mechanism, which is initiated by radicals, leading to th
Externí odkaz:
http://arxiv.org/abs/2308.12620
Autor:
Masubuchi, Yuichi, Doi, Yuya, Ishida, Takato, Sakumichi, Naoyuki, Sakai, Takamasa, Mayumi, Koichi, Sato, Kotaro, Uneyama, Takashi
The influence of node functionality (f) on the fracture of polymer networks remains unclear. While many studies have focused on multi-functional nodes with f>4, recent research suggests that networks with f=3 exhibit superior fracture properties comp
Externí odkaz:
http://arxiv.org/abs/2307.09832
Autor:
Nakai, Fumiaki, Ishida, Takato
This work propose an application of the concept of fluctuating diffusivity to the diffusion of gas molecules in cementitious materials, particularly through a two-state fluctuating diffusivity (2SFD) model. The 2SFD model is utilized to investigate t
Externí odkaz:
http://arxiv.org/abs/2301.11834
We develop a novel Moving Particle Simulation (MPS) method to accurately reproduce the motion of fibers floating in sheared liquids. In conventional MPS schemes, if a fiber suspended in a liquid is represented by a one-dimensional array of MPS partic
Externí odkaz:
http://arxiv.org/abs/2301.03818
Autor:
Nakai, Fumiaki, Kröger, Martin, Ishida, Takato, Uneyama, Takashi, Doi, Yuya, Masubuchi, Yuichi
Rod-shaped particles embedded in certain matrices have been reported to exhibit an increase in their center of mass diffusivity upon increasing the matrix density. This increase has been considered to be caused by a kinetic constraint in analogy with
Externí odkaz:
http://arxiv.org/abs/2301.02394
Diffusivity in some soft matter and biological systems changes with time, called the fluctuating diffusivity. In this work, we propose a novel origin for fluctuating diffusivity based on stochastic simulations of binary gas mixtures. In this system,
Externí odkaz:
http://arxiv.org/abs/2207.05424