Publication detail

Crack Front Shape Based on Plastic Component of CTOD

KUBÍČEK, R. OPLT, T. VOJTEK, T. NÁHLÍK, L. HUTAŘ, P.

English title

Crack Front Shape Based on Plastic Component of CTOD

Type

abstract

Language

en

Original abstract

Crack closure slows down fatigue crack propagation and affects the crack front curvature. The purpose of this study was to determine the crack front curvature in the CT and MT specimens made of the EA4T steel, which were subjected to cyclic loading. The methodology of constant plastic component of CTOD along the crack front was used in finite element modeling. Results confirm negligible effect of the in-plane constraint on fatigue crack propagation, taking into account PICC.

English abstract

Crack closure slows down fatigue crack propagation and affects the crack front curvature. The purpose of this study was to determine the crack front curvature in the CT and MT specimens made of the EA4T steel, which were subjected to cyclic loading. The methodology of constant plastic component of CTOD along the crack front was used in finite element modeling. Results confirm negligible effect of the in-plane constraint on fatigue crack propagation, taking into account PICC.

Keywords in English

Plasticity-induced crack closure, CTOD, finite element method, crack front shape

Released

04.04.2022

Publisher

Czech Technical University in Prague

Location

Prague

ISBN

978-80-01-06974-5

Book

23rd International Scientific Conference APPLIED MECHANICS 2022 – Book of Abstracts

Pages from–to

61–64

Pages count

132