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Molecular Dynamics Simulations of Shape-Memory Behavior Based on Martensite Transformation and Shear Deformation
http://hdl.handle.net/2237/9014
http://hdl.handle.net/2237/9014caa80048-2f0b-42a1-abc0-009fe46ce8f2
名前 / ファイル | ライセンス | アクション |
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JSME_A49-3-300.pdf (1.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-11-16 | |||||
タイトル | ||||||
タイトル | Molecular Dynamics Simulations of Shape-Memory Behavior Based on Martensite Transformation and Shear Deformation | |||||
言語 | en | |||||
著者 |
UEHARA, Takuya
× UEHARA, Takuya× TAMAI, Takato× OHNO, Nobutada |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | ja | |||||
権利情報 | 日本機械学会 | |||||
権利 | ||||||
言語 | ja | |||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである。 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Molecular Dynamics | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Shape-Memory Alloy | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Phase Transformation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Martensite | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Computer Simulation | |||||
抄録 | ||||||
内容記述 | Molecular dynamics simulations of the shape-memory effect are carried out to investigate the atomistic behavior during deformation and shape-recovery processes. The embedded-atom-method potential function and parameters for Ni-Al alloy are applied. The initial configurations of atoms are set on the lattice points of the martensite structure, in which the distribution of the variant orientation is limited to the two-dimensional direction for simplicity. When the shear load is imposed toward the x direction, parallel to the variant interface, the deformation of the variants occurs, and finally, all variants settle into the uniform orientation. The deformed state is maintained after the load is released, and the original shape is recovered through heating and cooling processes because of phase transformation to bcc and martensite. In the loading process, the stress-strain curve exhibits a zigzag shape consisting of repeated stress increase and abrupt release. The interval of the stress peak is revealed to be smaller as the model size becomes larger. Deformation observed in variant layers seems to occur at the same time at every points in the layer for a small model. However, the simulation with a large model indicates a nucleation and propagation behavior in each layer. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | The Japan Society of Mechanical Engineers | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連情報 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110004798963/ | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1344-7912 | |||||
書誌情報 |
en : JSME international Journal Series A 巻 49, 号 3, p. 300-306, 発行日 2006-07 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/9014 | |||||
識別子タイプ | HDL |