<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this article, changes occurring in structural steel after exposure to fire are described and discussed. The steel structure before and after fire determines its susceptibility to brittle cracking. The individual phases of cracking are described and interpreted on the basis of a load-displacement graph, directly obtained from the Charpy impact test. The relationship between the intensity of individual fracture energies and the type and appearance of the sample fractures are demonstrated. The program of planned Charpy impact tests and expected hazards after the exposure to fire of selected steel grades are presented. Standard simplified load-displacement graphs are assigned to the steel transition curve. The course of various cracking mechanisms occurring in the case of brittle fractures and plastic fractures are discussed. The aim of this article is to evaluate the possibility of the assessment of structural steel after a fire based on results obtained during the Charpy impact test.</p>
</abstract>

In this article, changes occurring in structural steel after exposure to fire are described and discussed. The steel structure before and after fire determines its susceptibility to brittle cracking. The individual phases of cracking are described and interpreted on the basis of a load-displacement graph, directly obtained from the Charpy impact test. The relationship between the intensity of individual fracture energies and the type and appearance of the sample fractures are demonstrated. The program of planned Charpy impact tests and expected hazards after the exposure to fire of selected steel grades are presented. Standard simplified load-displacement graphs are assigned to the steel transition curve. The course of various cracking mechanisms occurring in the case of brittle fractures and plastic fractures are discussed. The aim of this article is to evaluate the possibility of the assessment of structural steel after a fire based on results obtained during the Charpy impact test.

A suitability assessment using an instrumented impact test of the use of selected structural steel grades on the basis of their changes in response to exposure to fire

Technical Transactions

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

In this article, changes occurring in structural steel after exposure to fire are described and discussed. The steel structure before and after fire determines...

A suitability assessment using an instrumented impact test of the use of selected structural steel grades on the basis of their changes in response to exposure to fire

Published Online: Apr 27, 2021

Page range: -

Received: Mar 23, 2021

Accepted: Apr 21, 2021

DOI: https://doi.org/10.37705/TechTrans/e2021007

Keywords
instrumented impact Charpy test, brittle fracture, plastic fracture, mixed fracture

© 2021 Paulina Zajdel, published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

A suitability assessment using an instrumented impact test of the use of selected structural steel grades on the basis of their changes in response to exposure to fire

Published Online: Apr 27, 2021

Page range: -

Received: Mar 23, 2021

Accepted: Apr 21, 2021

DOI: https://doi.org/10.37705/TechTrans/e2021007

Keywordsinstrumented impact Charpy test, brittle fracture, plastic fracture, mixed fracture

© 2021 Paulina Zajdel, published by Sciendo

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Keywords
instrumented impact Charpy test, brittle fracture, plastic fracture, mixed fracture