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Unified correlation of creep crack growth rate with constraint parameter for different materials.
- Source :
-
Materials at High Temperatures . Jul2022, Vol. 39 Issue 4, p278-289. 12p. - Publication Year :
- 2022
-
Abstract
- In the CCG life assessment for defective structures based on the two-parameter method with considering constraints, the establishment of a correlation equation between the constraint parameter and the CCG rate for a material at a temperature is very important, but it is difficult and costly. For engineering applications, it is desirable to have a unified correlation equation for different materials. In this work, based on a large amount of experimental CCG rate data of different specimens from the literature, combining with the finite element (FE) calculations of a new unified creep constraint parameter Ac ,, a unified correlation equation has been obtained. In the CCG life evaluation for cracked structures based on the C*-Ac two-parameter method, this correlation equation may be used to estimate the constraint-dependent CCG rates for any materials at different temperatures. The correlation equations of eleven materials are also summarised in this paper. [ABSTRACT FROM AUTHOR]
- Subjects :
- *FRACTURE mechanics
*CREEP (Materials)
Subjects
Details
- Language :
- English
- ISSN :
- 09603409
- Volume :
- 39
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Materials at High Temperatures
- Publication Type :
- Academic Journal
- Accession number :
- 159267385
- Full Text :
- https://doi.org/10.1080/09603409.2022.2102343