Stress distribution description in the vicinity of the crack front in the case of thin specimens

0353455 - ÚFM 2011 RIV CZ eng K - Conference Paper (Czech conference)
Ševčík, Martin - Hutař, Pavel - Náhlík, Luboš
Stress distribution description in the vicinity of the crack front in the case of thin specimens.
Applied Mechanics 2010. Liberec: Technická univerzita v Liberci, 2010 - (Blekta, J.), s. 119-122. ISBN 978-80-7372-586-0.
[International Scientific Conference Applied Mechanics 2010 /12./. Jablonec nad Nisou (CZ), 19.04.2010-21.04.2010]
R&D Projects: GA ČR GD106/09/H035; GA ČR GA101/09/0867
Institutional research plan: CEZ:AV0Z20410507
Keywords : crack front * stress distribution * thin specimen * stress singularity
Subject RIV: JL - Materials Fatigue, Friction Mechanics

This work shows the comparison of stress field distribution in front of the crack front from both vertex singularity and out-of-plane constraint description. The three-dimensional numerical simulations of the middle crack tension specimen are performed. Relevant fracture mechanics parameters are estimated using finite element simulations and used for semi-analytical stress field descriptions mentioned. Good agreement between out-of-plane constraint methodology and vertex singularity methodology was found.
Permanent Link: http://hdl.handle.net/11104/0192701