Fatigue strength and damage mechanisms of laser welded structural carbon steel sheets

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25797000%3A_____%2F15%3A%230000580" target="_blank" >RIV/25797000:_____/15:#0000580 - isvavai.cz</a>

Result on the web

<a href="http://www.scientific.net/KEM.662.201" target="_blank" >http://www.scientific.net/KEM.662.201</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.662.201" target="_blank" >10.4028/www.scientific.net/KEM.662.201</a>

Result language

angličtina

Original language name

Fatigue strength and damage mechanisms of laser welded structural carbon steel sheets

Original language description

Laser welding is one of advanced and promising joining technologies of metallic materials, characteristic by numerous advantages in comparison with conventional welding processes. The technology still can be considered as fairly new and so, investigations are needed to reach optimum properties of welds in specific application cases, depending on welding parameters. Certification welding procedures usually require to demonstrate sufficient microstructure, mechanical, impact loading and other characteristics, but not fatigue resistance, which is essential for welded dynamically loaded structures. The paper contains results of fatigue resistance investigation of laser welded 10 mm thick sheets of a carbon structural S355 steel. High cycle fatigue tests were performed after optimizing laser welding parameters. Resulting endurance limit of the welds and heat affected zone was higher than that of basic material. However, high scatter of results and different damage mechanisms were shown for different load amplitudes. The results are discussed on the basis of fractographical analyses, which provided some quite interesting details about crack initiation mechanisms

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

<a href="/en/project/TA02011004" target="_blank" >TA02011004: Application of laser technologies in transportation engineering</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Kay Engineering Materials

ISSN

1662-9795

e-ISSN

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Volume of the periodical

662

Issue of the periodical within the volume

1. čtvrtletí

Country of publishing house

CH - SWITZERLAND

Number of pages

4

Pages from-to

201-204

UT code for WoS article

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EID of the result in the Scopus database

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