SYMPOSIA PAPER Published: 01 January 1983
STP36779S

Evaluation of the Elastic-Plastic Fracture Mechanics Methodology on the Basis of Large-Scale Specimens

Source

Within the scope of the cooperative project “Integrity of Components” (FKS) which is a part of the German Nuclear Safety Research Programme of the Federal Minister for Research and Technology, the theoretical and experimental investigation on ductile fracture is of decisive importance. The FKS is mainly concentrated on tearing tests on large-scale heavy-section specimens, in both the base material and welded conditions. Universal facilities up to 100 MN are available to test large-scale round and flat bars containing sharp defects in the form of machined notches, fatigue cracks, and natural flaws, such as segregation and heat-affected zone cracking. The dimensions are chosen so that it is possible to realize the significant technological states of material and stress over all conditions in the light-water reactor pressure vessel. The tested materials similar to A508 Class 2 and 3 cover a wide range of ductility (Cv upper-shelf toughness-40 to 200 J, crack initiation Ji = 50 to 200 kN/m, T-modulus = 10 to 300).

Author Information

Kussmaul, K
Staatliche Materialprüfungsanstalt (MPA), University of Stuttgart, Stuttgart, West Germany
Issler, L
Fachhochschule für Technik, Esslingen, West Germany
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Details
Developed by Committee: E08
Pages: 41–57
DOI: 10.1520/STP36779S
ISBN-EB: 978-0-8031-4870-3
ISBN-13: 978-0-8031-0726-7