Analysis Of Non-linear Buckling Strength Of Stiffened Plate Based On Harmonized Common Structural Rules

With the rapid development of science and technology, emerging emerging high-strength materials, structural strength is the main problem is no longer the main features of the tensile stress of the fatigue problem, and structural design of the main contradictions gradually turn out to be the main features of the pressure buckling stress. Important part of the hull structure, including board and reinforcement board the ship so as to improve the economic and security needs attention in the design and construction of the hull plate buckling ultimate strength of its lattice structure.Therefore, the shipbuilding industry for shipbuilding and shipping industry need to focus on the pursuit of "robustness", "durability" of the voice is getting higher, to ensure safe navigation at sea, protection of the marine environment, the pursuit of higher quality shipping, international shipping Class Operators Association IACS (International Association of Classification Societies) on October 1,2005 adopted two sets of bulk carriers and oil tankers unified global common structure specification, and CSR (Common Structural Rules). Two sets of norms for assessing the strength of two kinds of ship with the entire process for the first time world-wide uniform standards and detailed requirements.However, in this context generated by two structured specifications-oil tankers Common Structural Rules JTP (Joint Tanker Project), bulk carriers Common Structural Rules JBP (Joint Bulk Carrier Project), although much of the impetus to bulk carriers and oil tankers security, development, and it is difficult to enable industry to satisfaction. Shipbuilding sector, in particular, a common structure for the two standard-conforming content launched a wide-ranging discussion, there is considerable controversy. Because the two ship types-bulk carriers and oil tankers, in addition to use as a result of their need to be considered in the functional design of the special nature outside, most of the theoretical calibration is based on exactly the same, such as buckling check and fatigue problems. Therefore, many researchers began to explore whether the different points of its less the expense of other more common part, to develop two separate specifications. In order to meet the shipbuilding sector co-ordinate the needs of this specification, IACS for the content of the lack of coordination has been amended to better improve the maintenance of common standards. Oil tankers and bulk carriers of common norms and common structural architecture specification to implement a unified content uncoordinated plans into effect in December 2014 coordinating the implementation of Common Structural Rules HCSR (Harmonized Common Structural Rules). Imagine, HCSR after the introduction of this new specification, there must be some less perfect and fulfill ing place, waiting for the ship industry combined with the actual production to be verified and discussed. This draft document was published in the HCSR occasion, compared with two other common specification in the JTP and JBP and HCSR buckling strength calculations for some of the similarities and differences, several papers have the following main aspects:First introduced during the hull plate frame buckling analysis of the relevant basic theory and key technologies to analyze the characteristics of thin plate's buckling and large deflection theory of plate buckling strength have been studied, considering the various defects affect the ultimate strength of the board and relevant empirical formula.Second, the analysis and comparison of the common structure of JTP CSR standard specification, JBP regulate and coordinate the Common Structural Rules HCSR for checking buckling strength of the similarities and differences, as further adjusted to provide a reference standard.Finally, this paper, ribs tilt the ultimate strength of stiffened plate impact using the finite element method has been studied for nonl inear buckling and ultimate strength calculations for assessment of ultimate strength of stiffened plates provide a reference.