衝撃荷重を受ける平板及び防撓板の応力波形について

概要

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A ship structure is mainly composed of plain plates and stiffened plates. It is important for a design of a ship to make clear the response of structural elements to impact force. In this paper, the response of plain plates and stiffened plates loaded impulsively by a failed cylindrical bar was investigated experimentally. As a result, it is confirmed that stress wave occured in cylindrical bar impacted specimens was classified to three mode dependent on the magnitude of impact load. Moreover, relationship between the deflection and the impact load was examined, which waseffected by the bar falling height and the bar weight. Furthermore, dynamic load factor (DLF) was presented, besides the effect of a dead block, which is much used for easy analysis on such an impact test, was cleared up.
独立行政法人海上技術安全研究所の論文
1996-01-10