Detail publikace

Assessment of the cause of cracking of hydraulic hose clamps

PAVLOUŠKOVÁ, Z. KLAKURKOVÁ, L. MAN, O. ČELKO, L. ŠVEJCAR, J.

Originální název

Assessment of the cause of cracking of hydraulic hose clamps

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The aim of this study was to determine the cause of failure of the shells of hydraulic hose crimped fittings. For the purpose of examination the damaged crimped shells, undamaged crimped shells and shells prior to crimping were used. Fractographic and metallographic analysis, including chemical microanalysis of inclusions, were performed to determine the cause of failure. For this investigation, optical and scanning electron microscopes and hardness measurement were used. Damaged crimped shells contained higher amount of inclusions compared to undamaged crimped shells and substantially differed in microstructure and hardness. Furthermore, different geometry of the cross section at outer edge containing more effective stress concentrators was observed on failed crimped shells. Based on microstructural observation in cross section, hardness measurements and analysis of inclusions, the conclusion is that cracking of the shells occurred mainly due to deviations in the manufacturing process, combined with lower quality of shell material. Modifications to the technology were suggested to prevent this kind of failure.

Klíčová slova

Crimped fittings; Hosepipes; Inclusions; Metallography; Cracks

Autoři

PAVLOUŠKOVÁ, Z.; KLAKURKOVÁ, L.; MAN, O.; ČELKO, L.; ŠVEJCAR, J.

Rok RIV

2015

Vydáno

1. 10. 2015

Nakladatel

Elsevier

Místo

Elsevier

ISSN

1350-6307

Periodikum

ENGINEERING FAILURE ANALYSIS

Ročník

56

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

14

Strany do

19

Strany počet

6

URL

http://dx.doi.org/10.1016/j.engfailanal.2015.05.014

BibTex

@article{BUT115063,
  author="Zina {Pavloušková} and Lenka {Klakurková} and Ondřej {Man} and Ladislav {Čelko} and Jiří {Švejcar}",
  title="Assessment of the cause of cracking of hydraulic hose clamps",
  journal="ENGINEERING FAILURE ANALYSIS",
  year="2015",
  volume="56",
  number="1",
  pages="14--19",
  doi="10.1016/j.engfailanal.2015.05.014",
  issn="1350-6307",
  url="http://dx.doi.org/10.1016/j.engfailanal.2015.05.014"
}