| 조합하중을 받는 연속보강판의 좌굴 및 붕괴거동 평가 |
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박주신, 최정환, 홍관영, 이경우 |
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| Estimation of buckling and collapse behaviour for continuous stiffened plate under combined transverse axial compression and lateral pressure |
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Joo-shin Park, Joung-Hwan Choi, Kwan-Young Hong, Gyoung-Woo Lee |
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| Abstract |
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Estimation of the buckling and ultimate strength of a continuous stiffened plate subjected to combined transverse compression and lateral pressure is of high importance to ensure the safety of ship structures, particularly for the bottom plating under a deep draft condition For example, bottom plating of bulk carriers is subjected to transvers e thrust mused by the bending of double bottom structure and the direct action of pressure on the side shells. Most (If experimental tests, theoretical approach and numeri cal researches have been performed on the buckling and ultimate strength behaviour of plates or stiffened plates under combined compression and lateral pressure. With regard to stiffened panels, however, most of studies have been concerned with the load conditions of combined longitudinal thrust and lateral pressure, while fewer studies have been performed for the combined transverse thrust and lateral pressure. In addition, the previous researches are mainly concerned with an isolated rectangular plate simply supported along the all edges, whereas actual ship plating is continuous across the transverse frames and heavy girders. In the present paper, a series of elastoplastic large deflection FEA on a continuous stiffened plate is performed and then clarifv the characteristic of collapse mode and explain the effect of transverse compression. |
| Key Words:
Buckling;Ultimate strength;Elastoplastic large deflection analysis;Collapse;Lateral pressure;Continuous stiffened plate |
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