Toggle Main Menu Toggle Search

Open Access padlockePrints

Ultimate strength of initially deflected plate under longitudinal compression: Part I = An advanced empirical formulation

Lookup NU author(s): Dr Do Kyun Kim

Downloads


Licence

This is the authors' accepted manuscript of an article that has been published in its final definitive form by Techno-Press, 2018.

For re-use rights please refer to the publisher's terms and conditions.


Abstract

dsfIn this study (Part I), an advanced empirical formulation was proposed to predict the ultimate strength of initially deflected steel plate subjected to longitudinal compression. An advanced empirical formulation was proposed by adopting Initial Deflection Index (IDI) concept for plate element which is a function of plate slenderness ratio (ββ) and coefficient of initial deflection. In case of initial deflection, buckling mode shape, which is mostly assumed type in the ships and offshore industry, was adopted. For the numerical simulation by ANSYS nonlinear finite element method (NLFEM), with a total of seven hundred 700 plate scenarios, including the combination of one hundred (100) cases of plate slenderness ratios with seven (7) representative initial deflection coefficients, were selected based on obtained probability density distributions of plate element from collected commercial ships. The obtained empirical formulation showed good agreement (R2=0.99R2=0.99) with numerical simulation results. The obtained outcome with proposed procedure will be very useful in predicting the ultimate strength performance of plate element subjected to longitudinal compression.In this study (Part I), an advanced empirical formulation was proposed to predict the ultimate strength of initially deflected steel plate subjected to longitudinal compression. An advanced empirical formulation was proposed by adopting Initial Deflection Index (IDI) concept for plate element which is a function of plate slenderness ratio (ββ) and coefficient of initial deflection. In case of initial deflection, buckling mode shape, which is mostly assumed type in the ships and offshore industry, was adopted. For the numerical simulation by ANSYS nonlinear finite element method (NLFEM), with a total of seven hundred 700 plate scenarios, including the combination of one hundred (100) cases of plate slenderness ratios with seven (7) representative initial deflection coefficients, were selected based on obtained probability density distributions of plate element from collected commercial ships. The obtained empirical formulation showed good agreement (R2=0.99R2=0.99) with numerical simulation results. The obtained outcome with proposed procedure will be very useful in predicting the ultimate strength performance of plate element subjected to longitudinal compression.


Publication metadata

Author(s): Kim DK, Poh BY, Lee JR, Paik JK

Publication type: Article

Publication status: Published

Journal: Structural Engineering and Mechanics

Year: 2018

Volume: 68

Issue: 2

Pages: 247-259

Online publication date: 25/10/2018

Acceptance date: 20/09/2018

Date deposited: 21/11/2019

ISSN (print): 1225-4568

ISSN (electronic): 1598-6217

Publisher: Techno-Press

URL: https://doi.org/10.12989/sem.2018.68.2.247

DOI: 10.12989/sem.2018.68.2.247


Altmetrics

Altmetrics provided by Altmetric


Actions

Find at Newcastle University icon    Link to this publication


Share