High Temperature Defect Assessment Procedures
In this chapter, a basic high temperature defect assessment procedure for components subjected to essentially steady load is described. This is based on the Nuclear Electric R5 procedure, the British Standards Document PD6539 and other procedures in the literature. First, the basic phenomena influencing high temperature defect growth are discussed and the basic calculations needed and the input materials data required to assess these phenomena are presented. Then this information is combined into an overall defect assessment procedure which is discussed. This procedure is finally illustrated by a number of worked examples. The presentation here is necessarily brief and for more detail on the background phenomena, assessment procedures and worked examples the interested reader is referred to the book by Webster and Ainsworth .
KeywordsCrack Growth Rate Creep Strain Crack Opening Displacement Creep Crack Growth Creep Strain Rate
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