A simple criterion to exclude the risk of brittle fracture in the brittle-to-ductile transition temperature range

被引：0

作者：

Clement, D. ^{[1
]}

Jacquemoud, C. ^{[1
]}

Chapuliot, S. ^{[2
]}

Marie, S. ^{[3
]}

机构：

[1] Univ Paris Saclay, Serv Etud Mecan & Therm, CEA, F-91191 Gif Sur Yvette, France

[2] EDF R&D Renardieres, Ecuelles, France

[3] Framatome France, Courbevoie, France

来源：

ENGINEERING FRACTURE MECHANICS | 2025年 / 314卷

关键词：

Brittle fracture; Non-fracture threshold; Thin pipe structures; MN WELD JOINT; CLEAVAGE FRACTURE; LOCAL CRITERION; PART I; PREDICTION; MODEL;

D O I：

10.1016/j.engfracmech.2024.110739

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper presents the use of a simple threshold stress criterion to exclude the risk of brittle fracture in the brittle-to-ductile transition temperature range of carbon-manganese ferritic steel. In order to compare its predictions for laboratory specimens as well as for structures, fracture tests on CT specimens and three pipe structures representative of the in-service auxiliary piping system of French PWR, were analysed. In association with Finite Element analyses, this criterion allowed the authors to predict a lower bound of the non-fracture threshold.

引用

页数：14

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