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A novel formula for predicting the ultimate compressive strength of the cylindrically curved plates

황진하|김도균|Andy Ming King Wong|Shen Li|Nak-Kyun Cho
대한조선학회 (The Society Of Naval Architects Of Korea)|2024.12|International Journal of Naval Architecture and Ocean Engineering|제16권 |pp. 1-17|DOI 10.1016/j.ijnaoe.2023.100562

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참고문헌

키워드

BucklingCurved plateDesign formulaData processingUltimate limit state
주제분류조선공학

초록

The present study aims to develop an empirical formula to predict the ultimate compressive strength of unstiffened cylindrically curved plates. Drawing from an extensive analysis of 400 unique curved plate scenarios under longitudinal compression, we investigated critical parameters: the flank angle (denoted as θ), plate aspect ratio (denoted as a/b), and plate slenderness ratio (denoted as β). The ANSYS Nonlinear Finite Element Method (NLFEM) was employed to assess each scenario, considering the average level of initial imperfections (denoted as 0.1β2t) and configurations of one-bay and one-span. It is important to note that the models were designed without accounting for the effects of residual stresses. The simulation data generated from this analysis served as the foundation for developing our empirical formula. The proposed formula strongly agreed with the numerical simulations and experimental test results. This research provides structural engineers with a reliable predictive tool, aiding in more accurate predictions of the ultimate limit state (ULS) of curved plates during early design phases.

Abstract

The present study aims to develop an empirical formula to predict the ultimate compressive strength of unstiffened cylindrically curved plates. Drawing from an extensive analysis of 400 unique curved plate scenarios under longitudinal compression, we investigated critical parameters: the flank angle (denoted as θ), plate aspect ratio (denoted as a/b), and plate slenderness ratio (denoted as β). The ANSYS Nonlinear Finite Element Method (NLFEM) was employed to assess each scenario, considering the average level of initial imperfections (denoted as 0.1β2t) and configurations of one-bay and one-span. It is important to note that the models were designed without accounting for the effects of residual stresses. The simulation data generated from this analysis served as the foundation for developing our empirical formula. The proposed formula strongly agreed with the numerical simulations and experimental test results. This research provides structural engineers with a reliable predictive tool, aiding in more accurate predictions of the ultimate limit state (ULS) of curved plates during early design phases.

참고문헌 (63)

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관련 논문AI추천

Estimation of Buckling and Ultimate Collapse Behaviour of Stiffened Curved Plates under Compressive Load서정관, 하연철, Joo-Shin Park한국해양공학회 · 한국해양공학회지2020 · 제34권 제1호Welding residual stress of curved plate: Development of empirical formula for predicting ultimate compressive strength김도균, 김상진, 김영제, 김이은, 양희영, 이동훈, Park Joo Shin대한조선학회 · International Journal of Naval Architecture and Ocean Engineering2025 · 제17권 Ultimate uniaxial compressive strength of stiffened panel with opening under lateral pressureChang-Li Yu, Ji-Cai Feng, Ke Chen대한조선학회 · International Journal of Naval Architecture and Ocean Engineering2015 · 제7권 제2호Ultimate strength of simply supported plate with opening under uniaxial compressionChang-Li Yu, Joo-Sung Lee대한조선학회 · International Journal of Naval Architecture and Ocean Engineering2012 · 제4권 제4호Ultimate strength of stiffened panels subjected to non-uniform thrustKonstantinos N. Anyfantis대한조선학회 · International Journal of Naval Architecture and Ocean Engineering2020 · 제12권 유공판의 좌굴강도에 관한 연구권진칠, 김을년, 백점기, 최익흥대한조선학회 · 대한조선학회 논문집2010 · 제47권 제2호

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