Publication detail
Crack closure development following amplitude changes
KUBÍČEK, R. VOJTEK, T. POKORNÝ, P. NÁHLÍK, L. HUTAŘ, P.
English title
Crack closure development following amplitude changes
Type
abstract
Language
en
Original abstract
This contribution investigates the impact of variable amplitude loading on crack growth rates, highlighting the phenomena of retardation and acceleration in material behaviour. Variable loading conditions, characterised by differing magnitudes and sequences, can significantly influence crack growth, either slowing down or speeding up compared to constant loading. Through the study of compact tension specimens under two consecutive loading blocks at a constant load ratio (R=0.1), using a strip-yield model. The findings emphasise the importance of accurately modelling these dynamics for ensuring structural reliability and safety under variable loading conditions, offering valuable insights for materials engineering and structural integrity.
English abstract
This contribution investigates the impact of variable amplitude loading on crack growth rates, highlighting the phenomena of retardation and acceleration in material behaviour. Variable loading conditions, characterised by differing magnitudes and sequences, can significantly influence crack growth, either slowing down or speeding up compared to constant loading. Through the study of compact tension specimens under two consecutive loading blocks at a constant load ratio (R=0.1), using a strip-yield model. The findings emphasise the importance of accurately modelling these dynamics for ensuring structural reliability and safety under variable loading conditions, offering valuable insights for materials engineering and structural integrity.
Keywords in English
Variable amplitude loading; plasticity induced crack closure; strip-yield model; steel
Released
17.04.2024
Publisher
University of Žilina
Location
Žilina
ISBN
978-80-554-2090-5
Book
APPLIED MECHANICS 2024 - Book of Articles
Pages from–to
94–97
Pages count
252