Publication detail
Fracture toughness transition of ferritic-pearlitic steel at static and dynamic loading evaluated by master curve concept
VÁLKA, L. DLOUHÝ, I.
English title
Fracture toughness transition of ferritic-pearlitic steel at static and dynamic loading evaluated by master curve concept
Type
journal article - other
Language
en
Original abstract
The paper focuses on assessing the usability of fatigue pre-cracked Charpy type specimens when evaluating the resistance of steel with ferritic-pearlitic structure to the initiation of unstable fractures. The suitability of using the specimens is evaluated on the basis of comparing experimentally established values of fracture toughness on pre-cracked Charpy type specimens and the values of this characteristics determined using Compact Tension (CT) specimens. For the evaluation and comparison of the fracture toughness temperature dependences determined on individual specimen types the master curve concept quantifying fracture toughness transition was applied. In the case of the steel employed, very good agreement was found to exist between the characteristics determined on individual types of specimen. It was shown that fracture toughness determined on pre-cracked Charpy type specimens can be regarded as a representative measure of resistance of the material employed to the brittle fracture occurrence.
English abstract
The paper focuses on assessing the usability of fatigue pre-cracked Charpy type specimens when evaluating the resistance of steel with ferritic-pearlitic structure to the initiation of unstable fractures. The suitability of using the specimens is evaluated on the basis of comparing experimentally established values of fracture toughness on pre-cracked Charpy type specimens and the values of this characteristics determined using Compact Tension (CT) specimens. For the evaluation and comparison of the fracture toughness temperature dependences determined on individual specimen types the master curve concept quantifying fracture toughness transition was applied. In the case of the steel employed, very good agreement was found to exist between the characteristics determined on individual types of specimen. It was shown that fracture toughness determined on pre-cracked Charpy type specimens can be regarded as a representative measure of resistance of the material employed to the brittle fracture occurrence.
Keywords in English
fracture toughness; dynamic fracture toughness; fracture toughness master curve concept; transition behavior
Released
20.01.2018
Publisher
Univerzity of Žilina
Location
Žilina, Slovensko
ISSN
1335-0803
Volume
24
Number
4
Pages from–to
101–107
Pages count
7
BIBTEX
@article{BUT148915,
author="Libor {Válka} and Ivo {Dlouhý},
title="Fracture toughness transition of ferritic-pearlitic steel at static and dynamic loading evaluated by master curve concept",
year="2018",
volume="24",
number="4",
month="January",
pages="101--107",
publisher="Univerzity of Žilina",
address="Žilina, Slovensko",
issn="1335-0803"
}