Publication detail

Fracture toughness transition of ferritic-pearlitic steel at static and dynamic loading evaluated by master curve concept

VÁLKA, L. DLOUHÝ, I.

Original Title

Fracture toughness transition of ferritic-pearlitic steel at static and dynamic loading evaluated by master curve concept

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

fracture toughness; dynamic fracture toughness; fracture toughness master curve concept; transition behavior

Released

20.01.2018

Publisher

Univerzity of Žilina

Location

Žilina, Slovensko

ISBN

1335-0803

Periodical

Materiálové inžinierstvo

Year of study

24

Number

4

State

SK

Pages from

101

Pages to

107

Pages count

7

URL

Documents

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",
  annote="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.",
  address="Univerzity of Žilina",
  chapter="148915",
  howpublished="print",
  institution="Univerzity of Žilina",
  number="4",
  volume="24",
  year="2018",
  month="january",
  pages="101--107",
  publisher="Univerzity of Žilina",
  type="journal article - other"
}