SYMPOSIA PAPER Published: 01 January 1995

Validation of R6 Defect Assessment Methodology Using Experiments on Plates and Pipes with Surface Cracks


Plates and pipes with surface cracks were loaded to a level at which a definite amount of stable crack growth was achieved. Nominal stresses necessary for stable crack extension in depth direction equal to that observed on fracture surfaces were calculated and compared to nominal stresses in experiments. Option 2 of the R6 supplied closer agreement with experiment than Option 1. All results calculated with Option 1 were conservative.

Author Information

Hodulak, L
Fraunhofer-Institut für Werkstoffmechanik, Freiburg, Germany
Memhard, D
Fraunhofer-Institut für Werkstoffmechanik, Freiburg, Germany
Couterot, C
Electicite de France, Moret-sur-Loing, France
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Developed by Committee: E08
Pages: 822–834
DOI: 10.1520/STP16419S
ISBN-EB: 978-0-8031-5311-0
ISBN-13: 978-0-8031-1996-3