OPTIMISED USE OF HIGH STRENGTH STEELS FOR PRESSURE VESSELS BY APPLICATION OF MODERN DESIGN METHODS ACCORDING TO EUROPEAN STANDARDS
During the last 40 years,steel industry has developed high strength fine grain steels with excellent material properties and weldability for use in pressure vessels,as well as for structural buildings,offshore platforms,wind mills and ships.Application of such modern steels is often restricted due to lack of knowledge concerning questions of safety and downstream fabrication processes such as welding,bending and PWHT.However,if new toughness-oriented design rules as they were developed in several International research projects are accepted,such modern steels can be applied leading to economic advantages and sustainable use of resources while safety remains on the required level.The predominant question for safe constructions is related to toughness and quality survey during downstream fabrication.This question today is answered with the application of fracture mechanics based safety concepts and a better understanding of fracture and deformation behavior of structural components.In addition it must be underlined that beyond a widely spread understanding of standard C-Mn structural steels,modern micro alloyed structural steels provide far higher quality in terms of toughness,strength,inner soundness and optimal fabrication properties.With this presentation it shall demonstrated how modern micro-alloyed steels and modern toughness-oriented design methods can be applied for pressure vessels steels with thickness up to 200 mm operating at low temperatures.
Limit state design Toughness Fracture Mechanics Heavy plate EN13445
Langenberg P.
IWTprojects Ltd,Aachen,Germany Muehlental 44,52066 Aachen
国际会议
Energy Materials 2014(第一届能源材料国际会议)
西安
英文
815-820
2014-11-04（万方平台首次上网日期，不代表论文的发表时间）