STRUCTURAL INTEGRITY ASSESSMENT OF NOTCHED COMPONENTS USING THE MASTER CURVE METHODOLOGY AND FAILURE ASSESSMENT DIAGRAMS

被引：0
作者：
Garcia, Tiberio [1 ]
Cicero, Sergio [1 ]
Madrazo, Virginia [2 ]
机构：
[1] Univ Cantabria, Santander, Cantabria, Spain
[2] Fdn Ctr Tecnol Componentes, Santander, Cantabria, Spain
来源：
ASME PRESSURE VESSELS AND PIPING CONFERENCE - 2015, VOL 3 | 2015年
关键词：
FERRITIC-PEARLITIC STEELS; FRACTURE-TOUGHNESS;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper proposes a methodology for the structural integrity assessment of notched components. It combines failure assessment diagrams and a notch analysis approach based on the application of the Master Curve methodology for the prediction of the apparent fracture toughness of ferritic-pearlitic steels in notched conditions. This approach considers a new parameter named the notch reference temperature (T-0(N)), which is different from the reference temperature (T-0) obtained in cracked specimens and varies with the notch radius. With this purpose, the methodology has been applied to a set of fracture tests on steel S275JR, with notch radii ranging from 0 mm (crack-type defects) up to 2.0 mm and testing temperatures from -120 degrees C up to 40 degrees C. The methodology improves significantly the results obtained under the assumption that notches behave as cracks.
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页数：10
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