北海油田在英国经济发展中的重要性推动了政府支持的一些研究规划在近五年来的进展。规划中最重要的研究课题之一是固定平台结构完整性的研究。这项研究已在政府研究所和大学里进行。研究工作的需要导致大学中海洋技术中心的创立。特别是伦敦大学有一个专门研究“结构与材料”的组织。本文叙述的研究工作为伦敦中心海洋技术计划的一部分。任何大型焊接结构的设计总是力图消除脆性断裂和疲劳裂纹萌生与增长的可能性。北 The importance of the North Sea oil field in Britain’s economic development has pushed some of the government-backed research programs to make progress in the last five years. One of the most important research topics in planning is the study of the structural integrity of fixed platforms. This research has been conducted at government institutes and universities. The need for research led to the creation of a university-level ocean technology center. In particular, the University of London has an organization that specializes in “structures and materials.” The research work described in this article is part of the London Center for Marine Technology Program. The design of any large welded structure is always trying to eliminate the possibility of brittle fracture and fatigue crack initiation and growth. north