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HUTAŘ, P. ZOUHAR, M. NEZBEDOVÁ, E. SADÍLEK, J. ŽÍDEK, J. NÁHLÍK, L. KNÉSL, Z.
Original Title
Constraint effect on the slow crack growth in polyethylene
Type
journal article - other
Language
English
Original Abstract
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.
Keywords
Constraint, slow crack growth, polyethylene, T-stress
Authors
HUTAŘ, P.; ZOUHAR, M.; NEZBEDOVÁ, E.; SADÍLEK, J.; ŽÍDEK, J.; NÁHLÍK, L.; KNÉSL, Z.
RIV year
2012
Released
5. 6. 2012
ISBN
1757-9864
Periodical
International Journal of Structural Integrity
Year of study
3
Number
2
State
United Kingdom of Great Britain and Northern Ireland
Pages from
118
Pages to
126
Pages count
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" }