Detail publikačního výsledku

Constraint effect on the slow crack growth in polyethylene

HUTAŘ, P.; ZOUHAR, M.; NEZBEDOVÁ, E.; SADÍLEK, J.; ŽÍDEK, J.; NÁHLÍK, L.; KNÉSL, Z.

Originální název

Constraint effect on the slow crack growth in polyethylene

Anglický název

Constraint effect on the slow crack growth in polyethylene

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

From the practical point of view, most relevant damage of the HDPE structures is determined by slow crack growth. In this case plastic deformations are localized just around the crack front. Due to this fact linear elastic fracture mechanics can be used for description of the stress field around the crack tip. The constraint effect is mainly effect of the structure geometry and can be quantified by T-stress. Two different test specimens with different constraint level (T-stress) were prepared: single edge notched specimen and modified SEN specimen. The crack mouth opening displacement, crack tip opening displacement and crack length was measured. Than effect of the constraint and relation between CMOD and crack length was investigated and discussed.

Anglický abstrakt

From the practical point of view, most relevant damage of the HDPE structures is determined by slow crack growth. In this case plastic deformations are localized just around the crack front. Due to this fact linear elastic fracture mechanics can be used for description of the stress field around the crack tip. The constraint effect is mainly effect of the structure geometry and can be quantified by T-stress. Two different test specimens with different constraint level (T-stress) were prepared: single edge notched specimen and modified SEN specimen. The crack mouth opening displacement, crack tip opening displacement and crack length was measured. Than effect of the constraint and relation between CMOD and crack length was investigated and discussed.

Klíčová slova

Constraint, slow crack growth, polyethylene, T-stress

Klíčová slova v angličtině

Constraint, slow crack growth, polyethylene, T-stress

Autoři

HUTAŘ, P.; ZOUHAR, M.; NEZBEDOVÁ, E.; SADÍLEK, J.; ŽÍDEK, J.; NÁHLÍK, L.; KNÉSL, Z.

Rok RIV

2013

Vydáno

05.06.2012

ISSN

1757-9864

Periodikum

International Journal of Structural Integrity

Svazek

3

Číslo

2

Stát

Spojené království Velké Británie a Severního Irska

Strany od

118

Strany do

126

Strany počet

9

BibTex

@article{BUT92624,
  author="Pavel {Hutař} and Michal {Zouhar} and Eva {Nezbedová} and Jiří {Sadílek} and Jan {Žídek} and Luboš {Náhlík} and Zdeněk {Knésl}",
  title="Constraint effect on the slow crack growth in polyethylene",
  journal="International Journal of Structural Integrity",
  year="2012",
  volume="3",
  number="2",
  pages="118--126",
  issn="1757-9864"
}