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Figure 7: Extension of service lifetime of structure during crack propagation
6. INTRODUCTION TO SINTAP
The Structural INTegrity Assessment Procedure (SINTAP) is one of a most compre-
hensive assessment procedure, very popular in practice. The SINTAP accepted the basic
principles of R6 /8/ and ETM /11/, and extended use of fracture mechanics (Fig. 8).
Basic features of this procedure are:
- Assessment for inhomogeneous configurations, like strength mismatched weldments,
- Taking into account effect of residual stresses,
- Application in the ductile-to-brittle material behaviour transition temperature range.
Figure 8: Triangle of the fracture mechanics approach