### 抄録

In this study, the body force method was extended to the analysis of elastodynamic problems. By inserting the region in question into the adjoint region, it was possible to reduce the given elastodynamic problem to an elastodynamic problem of an infinite body. The general integral formula was obtained based on superposition of the elastodynamic fields of a point force and a discrepancy in the time-space region. Therefore, analysis of the elastodynamic problem was reduced to a calculation of the unknown densities of force or discrepancy distributed along the imaginary boundary. The direct or indirect methods of BEM can be seen as special cases of the general formula proposed in this study. The effectiveness of the method was shown by analyzing an example of the elastodynamic problems of a half space with initial conditions subjected to uniform surface pressure.

元の言語 | 英語 |
---|---|

ページ（範囲） | 1584-1592 |

ページ数 | 9 |

ジャーナル | Transactions of the Japan Society of Mechanical Engineers Series A |

巻 | 55 |

発行部数 | 515 |

DOI | |

出版物ステータス | 出版済み - 1 1 1989 |

### All Science Journal Classification (ASJC) codes

- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering

### これを引用

*Transactions of the Japan Society of Mechanical Engineers Series A*,

*55*(515), 1584-1592. https://doi.org/10.1299/kikaia.55.1584

**Analysis of Elastodynamic Problems Based on the Principle of Superposition (Extention of the Body Force Method to Elastodynamic Problems).** / Chen, Dai Heng; Nisitani, Hironobu; Noguchi, Hiroshi.

研究成果: ジャーナルへの寄稿 › 記事

*Transactions of the Japan Society of Mechanical Engineers Series A*, 巻. 55, 番号 515, pp. 1584-1592. https://doi.org/10.1299/kikaia.55.1584

}

TY - JOUR

T1 - Analysis of Elastodynamic Problems Based on the Principle of Superposition (Extention of the Body Force Method to Elastodynamic Problems)

AU - Chen, Dai Heng

AU - Nisitani, Hironobu

AU - Noguchi, Hiroshi

PY - 1989/1/1

Y1 - 1989/1/1

N2 - In this study, the body force method was extended to the analysis of elastodynamic problems. By inserting the region in question into the adjoint region, it was possible to reduce the given elastodynamic problem to an elastodynamic problem of an infinite body. The general integral formula was obtained based on superposition of the elastodynamic fields of a point force and a discrepancy in the time-space region. Therefore, analysis of the elastodynamic problem was reduced to a calculation of the unknown densities of force or discrepancy distributed along the imaginary boundary. The direct or indirect methods of BEM can be seen as special cases of the general formula proposed in this study. The effectiveness of the method was shown by analyzing an example of the elastodynamic problems of a half space with initial conditions subjected to uniform surface pressure.

AB - In this study, the body force method was extended to the analysis of elastodynamic problems. By inserting the region in question into the adjoint region, it was possible to reduce the given elastodynamic problem to an elastodynamic problem of an infinite body. The general integral formula was obtained based on superposition of the elastodynamic fields of a point force and a discrepancy in the time-space region. Therefore, analysis of the elastodynamic problem was reduced to a calculation of the unknown densities of force or discrepancy distributed along the imaginary boundary. The direct or indirect methods of BEM can be seen as special cases of the general formula proposed in this study. The effectiveness of the method was shown by analyzing an example of the elastodynamic problems of a half space with initial conditions subjected to uniform surface pressure.

UR - http://www.scopus.com/inward/record.url?scp=0024700507&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024700507&partnerID=8YFLogxK

U2 - 10.1299/kikaia.55.1584

DO - 10.1299/kikaia.55.1584

M3 - Article

AN - SCOPUS:0024700507

VL - 55

SP - 1584

EP - 1592

JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A

SN - 0387-5008

IS - 515

ER -