An Assessment Procedure for the High Temperature Response of Structures
An Assessment Procedure for the High Temperature Response of Structures
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DOI：
10.1007/978-3-642-84455-3_35
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
I. Goodall;R. Ainsworth
中科院分区：
文献类型：
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作者：
I. Goodall;R. Ainsworth
本文介绍了核电厂内的广泛工作，以开发一个程序，该程序汇集了结构力学和材料科学的知识，用于评估在蠕变范围内运行的组件。这个程序被称为R5，分为七个部分或卷。这些体积和相关的故障模式，其中所解决的描述。整个R5的意图是避免，只要有可能，完全非弹性的计算机解决方案。本文概述了参考应力的概念，这是在R5的各个部分使用。R5的另一个特点是循环荷载下的蠕变损伤的特点是延性耗尽方法。这种方法被认为是更密切地描述蠕变损伤的机制。加深理解和数据库支持这一做法。最后，本文描述了R5的一些应用程序操作组件和一个应用程序的一些细节。
This paper describes extensive work within Nuclear Electric, to develop a procedure which assembles knowledge in structural mechanics and materials science for assessment of components operating in the creep range. The procedure, called R5, is written in seven parts, or volumes. These volumes and the associated failure modes which are addressed are described.The intent throughout R5 is to avoid, wherever possible, full inelastic computer solutions. The paper outlines the reference stress concept which is used in various parts of R5. Another feature of R5 is that creep damage under cyclic loading is characterised by ductility exhaustion methods. This approach is believed to describe more closely the mechanisms of creep damage. Improved understanding and the data base support this approach. Finally, the paper describes some applications of R5 to operating components and one application in some detail.