| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2025-01-29 |
| タイトル |
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タイトル |
A smoothed variable horizon peridynamics and its application to the fracture parameters evaluation |
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言語 |
en |
| 作成者 |
Imachi, Michiya
Takei, Takumi
Özdemir, Mehmet
Tanaka, Satoyuki
Oterkus, Selda
Oterkus, Erkan
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| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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言語 |
en |
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権利情報 |
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00707-020-02863-9 |
| 権利情報 |
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言語 |
en |
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権利情報 |
This is not the published version. Please cite only the published version. |
| 権利情報 |
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言語 |
ja |
|
権利情報 |
この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。 |
| 内容記述 |
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内容記述 |
Peridynamics has attractive features for solving several fracture mechanics problems. On the other hand, to ensure the accuracy, a large amount of particles (material points) is required. Introduction of variable horizon is an alternative approach by changing the horizon size over the problem domain. In the present study, we propose a novel variable horizon concept. It is known that an undesired “ghost" force arises along the transition region of different horizons. In order to suppress the ghost force, the gradual variation in the horizon size over a certain region, called smoothing length, is introduced between different scale particle distributions. Efficiency of the smoothed variable horizon peridynamics is demonstrated by several numerical studies employing the ordinary state-based peridynamics. As a basic case, a linear displacement field is considered. It is observed that the proposed approach significantly reduces the ghost forces along the interface of different spatial discretizations. Additionally, the dynamic stress intensity factors of stationary cracks are carefully examined. The path independence of the fracture parameters in the variable horizon peridynamics is ensured. The efficiency of the presented method is then discussed. It is monitored that introduction of the smoothing length concept significantly reduces the computational costs in the peridynamic modeling. |
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言語 |
en |
| 出版者 |
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出版者 |
Springer Nature |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1007/s00707-020-02863-9 |
| 助成情報 |
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助成機関名 |
日本学術振興会 |
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言語 |
ja |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-19J14053/ |
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研究課題番号 |
19J14053 |
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研究課題名 |
Ｐｅｒｉｄｙｎａｍｉｃｓによる脆性および延性破壊の混在するき裂伝播モデルの開発 |
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言語 |
ja |
| 助成情報 |
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助成機関名 |
Japan Society for the Promotion of Science |
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言語 |
en |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-18K04582/ |
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研究課題番号 |
18K04582 |
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研究課題名 |
Ｐｅｒｉｄｙｎａｍｉｃｓによる脆性および延性破壊の混在するき裂伝播モデルの開発 |
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言語 |
ja |
| 助成情報 |
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助成機関名 |
日本学術振興会 |
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言語 |
ja |
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研究課題名 |
Peridynamicsを用いた脆性材料の動的破壊挙動の評価に関する研究 |
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言語 |
ja |
| 助成情報 |
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助成機関名 |
Japan Society for the Promotion of Science |
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言語 |
en |
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研究課題名 |
Dynamic Fracture Analysis for Brittle Material Using Peridynamics |
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言語 |
en |
| 開始ページ |
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開始ページ |
533 |
| 書誌情報 |
en : Acta Mechanica
巻 232,
p. 533-553,
発行日 2020-11-21
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| 旧ID |
56180 |
AM_232_533.pdf (2.7 MB)
