Research
研究内容
体積力法は,1967年に西谷によって開発された境界型の応力解析手法である.
特にき裂問題に対して高い解析精度を有している.
現在は,三次元き裂混合モード解析や三次元の汎用化プログラムの作成を目指した研究を実施している.
メッシュフリー体積力法は移動最小二乗法の概念を
未知の関数に用いることで開発された境界型のメッシュフリー解法である.
- 境界に配置した節点のみで解析可能
- 任意形状に対する適用が容易
- 連続的に未知関数を内装可能
They conducted fatigue test by push-pull machine using Al5052
plate-type specimen which is attached by fastener designed for
fretting. It was found that attaching a fastener exhibits a
remarkable improvement on fatigue strength since the fastener
decreases a effective cyclic stain.
In this theme, they made original testing machine for the
observation of snap-off buckling. It was found that the applied
lateral load decreases with increase of overall deformation and
becomes almost zero just before the on set of snap-off.
Pubulications
Conference
- Yohei Sonobe, Takuichiro Ino, Atsuhiro Koyama, and Akihide Saimoto, "Analysis of 3-Dimensional Creased Cracks", The 18th international conference on fracture and damage mechanics, Sep. 2019, pp. 416-421.
- Takuichiro Ino, Yohei Sonobe, Atsuhiro Koyama, Akihide Saimoto, "Two-Dimensional Stress Analysis of an Infinite Plate with Anisotropic Inclusions by BFM", The 18th international conference on fracture and damage mechanics, Sep. 2019, pp. 397-403.