著者

酒井 譲 山下 彰彦

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 A編 (ISSN:03875008)

巻号頁・発行日

vol.67, no.659, pp.1093-1102, 2001-07-25 (Released:2008-02-21)

参考文献数

12

被引用文献数

11 7

---

As a meshless numerical analysis, particle methods are considered promising in the filed of fluid dynamics and structural analyses. SPH (Smoothed Particle Hydrodynamics), which has been mainly applied to super fast impact or collision problems, is expected to be a more powerful tool for general structural problems such as large deformation and general 3-dim structural problems of complex geometrical objects. However, the fundamental characteristics (accuracy and convergence of solution, effects of time increment and artificial viscosity, etc) of particle methods have not been clarified at all, which causes the fatal limitation of this method. This paper discussed the several numerical properties of SPH by comparing FEM results. It is shown that structural analysis by particle method (SPH) has relatively good accuracy, as well as good numerical convergence and stability in comparison with traditional method (finite element method) and is expected to be a sophisticated tool for a meshless structural analysis.

著者

酒井 譲二 岩見 裕子 羽野 忠

出版者

[大分大学地域共同研究センター]

雑誌

大分大学地域共同研究センター年報

巻号頁・発行日

vol.10, pp.86-88, 2004