レーザスポット溶接によるステンレス鋼ダブルスキンパネル材料の開発(第1報)

—パネルの製造技術開発と静的機械的特性の調査—

抄録

Manufacturing technology for stainless steel double skin panels using laser spot welding was developed and some static strength properties were carried out. And this panel has been examined for the feasibility of practical utilization. The results obtained are summarized as follows;
(1) Manufacturing technology was established on which there are invisible welding marks and the corrosion resistance and appearance are equivalent to original metal surface.
(2) Calculate method of the moment of inertia of area of this panel is established.
(3) This panel is approximately 75% lighter than the bulk material in equivalent flexural rigidity.
(4) Any laser spot welded site is not broken in region of below maximum load as well as localized buckling in mechanical tests.
(5) In application of this panel to vessels and vehicles, simulation model of stiffness and strength of this structures life prediction of this panel based on fatigue strength analysis for panel reliability prediction technology is required.