Browse > Article
http://dx.doi.org/10.7837/kosomes.2021.27.3.447

Modified Design Formula for Predicting the Ultimate Strength of High-tensile Steel Thin Plates  

Park, Joo Shin (Ship and Offshore Research Institute, Samsung Heavy Industry Co. Ltd.)
Seo, Jung Kwan (The Korea Ship and Offshore Research Institute/Department of Naval Architecture & Ocean Engineering, Pusan National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.27, no.3, 2021 , pp. 447-456 More about this Journal
Abstract
Methods for predicting the ultimate/buckling strength of ship structures have been extensively improved in terms of design formulas and analytical solutions. In recent years, the design strategy of ships and offshore structures has tended to emphasize lighter builds and improve operational safety. Therefore, the corresponding geometrical changes in design necessitate the use of high-tensile steel and thin plates. However, the existing design formulas were mainly developed for thick plates and mild steels. Therefore, the calculation methods require appropriate modification for new designs beased on high-tensile steel and thin plates. In this study, a modified formula was developed to predict the ultimate strength of thin steel plates subjected to compressive and shear loads. Based on the numerical results, the effects of the yield stress, slenderness ratio, and loading condition on the buckling/ultimate strength of steel plates were examined, and a newly modified double-beta parameter formula was developed. The results were used to derive and modify existing closed-form expressions and empirical formulas to predict the ultimate strength of thin-walled steel structures.
Keywords
Design formulae; Thin walled plates; High-tensile steel; Slenderness ratio; Ultimate strength;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Paik, J. K. and A. K. Thayamballi(1997), An empirical formulation for predicting the ultimate compressive strength of stiffened panels. In: Proceedings of the 7th International Offshore and Polar Engineering Conference. Honolulu, Hawaii, USA. 25-30 May.
2 Chen, Y.(2003), Ultimate Strength Analysis of Stiffened Panels Using A Beam-column Method (Ph.D. dessertation). Virginia Polytechnic Institute and State University, Virginia, USA.
3 Ueda, Y. and T. Yao(1985), The influence of complex initial deflection modes on the behaviour and ultimate strength of rectangular plates in compression. J. Constr. Steel Res. 5(4), pp. 265-302.   DOI
4 Smith, C.(1977), Influence of local compressive collapse on ultimate longitudinal strength of a ship's hull. In: Proceedings of the International Symposium on Practical Design in Shipbuilding (PRADS 1977). Tokyo, Japan. 18-20, October.
5 IACS(2006a), Common Structural Rules for Double Hull Oil Tankers. International Association of Classification Societies, London, UK.
6 Cho, S. R., H. S. Hyun, J. B. Koo, H. M. Doh, and Y. K. Chon(2011), Robust ultimate strength formulation for stiffened plates subjected to combined loads. In: Soares, Guedes, Fricke (Eds.), Advances in Marine Structures. Taylor & Francis, London, UK, pp. 99-108.
7 Frankland, J. M.(1940), The strength of ship plating under edge compression, US EMB Report 469.
8 Hughes, O. F. and J. K. Paik(2013), Ship Structural Analysis and Design. The Society of Naval Architects and Marine Engineers, New Jersey, USA.
9 IACS(2015), Common Structural Rules for Bulk Carriers and Oil Tankers. International Association of Classification Societies, London, UK.
10 ISSC(2012), Ultimate Strength (Committee III.1). In: Proceedings of the 18th International Ship and Offshore Structures Congress (ISSC 2012), Rostock, Germany. 9-13 September.
11 Lin, Y. T.(1985), Ship Longitudinal Strength Modelling (Ph.D. dissertation). University of Glasgow, Scotland, UK.
12 Khedmati, M. R., M. R. Zareei, and P. Rigo(2010), Empirical formulations for estimation of ultimate strength of continuous stiffened aluminium plates under combined in-plane compression and lateral pressure. Thin-Walled Struct. 48(3), pp. 274-289.   DOI
13 Fujikubo, M., S. Harada, T. Yao, M. R. Khedmati, and D. Yanagihara(2005), Estimation of ultimate strength of continuous stiffened panel under combined transverse thrust and lateral pressure, Part 2: continuous stiffened panel. Mar. Struct. 18(5-6), pp. 411-417.   DOI
14 Kim, U., I. Choe, and J. K. Paik(2009), Buckling and ultimate strength of perforated plate panels subject to axial compression: experimental and numerical investigations with design formulations. Ships and Offshore Structures, 4(4), pp. 337-361   DOI
15 Paik, J. K., B. J. Kim, and J. K. Seo(2008), Methods for ultimate limit state assessment of ships and ship-shaped offshore structures: PART 1 - Unstiffened plate, Ocean Engineering. 35(2), pp. 261-270.   DOI
16 Paik, J. K., D. K. Kim, D. H. Park, H. B. Kim, A. E. Mansour, and J. B. Caldwell(2013), Modified Paik-Mansour formula for ultimate strength calculations of ship hulls. Ships and Offshore Structures. 8(3-4), pp. 245-260.   DOI
17 Paik, J. K. and P. T. Pedersen(1996), A simplified method for predicting ultimate compressive strength of ship panels. Int. Shipbuild. Prog. 43(434), pp. 139-157
18 Paik, J. K. and A. K. Thayamballi(2003), Ultimate Limit State Design of Steel-Plated Structures. John Wiley & Sons, Chichester, UK.
19 Paik, J. K., A. K. Thayamballi, and B. J. Kim(2001), Large deflection orthotropic plate approach to develop ultimate strength formulations for stiffened panels under combined biaxial compression/tension and lateral pressure. Thin-Walled Struct. 39(3), pp. 215-246.   DOI
20 Paik, J. K. and A. K. Thayamballi(2007), Ship-shaped offshore installations: design, building, and operation, Cambridge University Press, Cambridge, UK.
21 Zhang, S.(2016), A review and study on ultimate strength of steel plates and stiffened panels in axial compression. Ships and Offshore Structures, 11(1), pp. 81-91.   DOI
22 ISSC(2015), Ultimate Strength (Committee III.1). In: Proceedings of the 19th International Ship and Offshore Structures Congress (ISSC 2015). Cascais, Portugal. 7-10 September.
23 Zhang, S. and I. Khan(2009), Buckling and ultimate capability of plates and stiffened panels in axial compression. Mar. Struct. 22(4), pp. 791-808.   DOI
24 ANSYS(2016), Version 15.0. ANSYS Inc., Canonsburg, PA, USA.
25 Faulkner, D.(1975), A review of effective plating for use in the analysis of stiffened plating in bending and compression. Journal of Ship Research. 19(1), pp. 1-17.   DOI
26 Fujikubo, M. and Y. Yao(2005), Estimation of ultimate strength of continuous stiffened panel under combined transverse thrust and lateral pressure, PART 1: Continuous plate. Marine Structures. 18, pp. 383-410.   DOI
27 IACS(2006b), Common Structural Rules for Bulk Carriers. International Association of Classification Societies, London, UK.
28 Kim, D. K., H. L. Lim, M. S. Kim, O. J. Hwang, and K. S. Park(2017), An empirical formulation for predicting the ultimate strength of stiffened panels subjected to longitudinal compression. Ocean Engineering. 140, pp. 270-280.   DOI
29 Caldwell, J.(1965), Ultimate longitudinal strength. Trans. RINA 107, pp. 411-430.
30 Kim, D. H. and J. K. Paik(2017), Ultimate limit state-based multi-objective optimum design technology for hull structural scantlings of merchant cargo. Ocean Engineering. 129(1), pp. 318-334.   DOI