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Dive into the research topics where Hironori Nada is active.

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Featured researches published by Hironori Nada.


Key Engineering Materials | 2016

Development of simulation technology for production of porous polymeric membranes

Hironori Nada; Masakazu Kudo; Junichi Takahashi; Toshiharu Yamamoto; Hideyuki Hara; Kazuyuki Shizawa

Porous polymeric membranes are used for ion exchange membranes, membrane filter and separators of batteries owing to its micro-porous structure. Extension method is one of the inexpensive processes of such membrane. However, any suitable stability condition of the process has not yet been clarified. In this study, SEM (Scanning Electron Microscope) observations in production process are carried out and the simulation technology for production is developed for improvement in productivity. In this simulation model, the evolution equation of microscopic damage, constitutive equation depending on microscopic damage and the homogenization method are used for representation of evolution of micro-porous structure of crystalline polymer. It is indicated that numerical results obtained here are in good agreement with the SEM observations.


International Journal of Mechanical Sciences | 2015

Molecular chain plasticity model similar to crystal plasticity theory based on change in local free volume and FE simulation of glassy polymer

Hironori Nada; Hideyuki Hara; Yuichi Tadano; Kazuyuki Shizawa


Transactions of the Japan Society of Mechanical Engineers. A | 2008

Molecular chain plasticity model considering poly-entangled points of molecular chain in glassy polymer and large deformation FE analysis on deformation-induced anisotropy

Hironori Nada; Yuichi Tadano; Kazuyuki Shizawa


Transactions of the Japan Society of Mechanical Engineers. A | 2008

Molecular chain plasticity model like crystal plasticity theory using probabilistic response law of inelasticity based on change of local free volume for glassy polymer

Hironori Nada; Kazuyuki Shizawa


Transactions of the Japan Society of Mechanical Engineers. A | 2008

Large deformation analysis for glassy polymer based on molecular chain plasticity model like crystal plasticity theory considering change of local free volume

Hironori Nada; Kazuyuki Shizawa


The Proceedings of the Materials and Mechanics Conference | 2015

OS1332-302 Development of Simulation Technology for Production of Porous Polymeric Membranes

Hironori Nada; Masakazu Kudo; Junichi Takahashi; Toshiharu Yamamoto; Hideyuki Hara; Kazuyuki Shizawa


学術講演会講演論文集 | 2007

229 An Application of Extended Taylor Model to Molecular Chain Slip Theory and Discussion on Independent Rotation of Molecular Chain Slip Systems and Backstress

Hironori Nada; Kazuyuki Shizawa


The Proceedings of The Computational Mechanics Conference | 2007

706 A Crystal Plasticity Like Simulation for Large Deformation of Glassy Polymers Considering Elastic Anisotropy Based on Orientation of Molecular Chains

Tsuyoshi Ishikawa; Masanori Ogura; Hironori Nada; Yuichi Tadano; Kazuyuki Shizawa


Key Engineering Materials | 2007

Multiscale Modeling for Large Deformation of Glassy Polymer Based on Molecular Chain Slip Model and Probabilistic Response Law of Inelasticity

Hironori Nada; Saneyuki Abe; Kazuyuki Shizawa


The Proceedings of The Computational Mechanics Conference | 2006

252 Large Deformation Analysis for Glassy Polymers Using Molecular Chain Slip Theory Extended to Polycrystal Model

Masanori Ogura; Hironori Nada; Yuichi Tadano; Kazuyuki Shizawa

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