Engineering Mechanics

Proceedings Vol. 13 (2007)

ENGINEERING MECHANICS 2007

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 14 – 17, 2007, Svratka, Czech Republic

;

Editors: Igor Zolotarev

ISBN 978-80-87012-06-2 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

ESTIMATION OF CRITICAL VALUES FOR CRACK PROPAGATION FROM SHARP V-NOTCH

Majer Z., Hutař P., Náhlík L., Knésl Z.
pages 167 - +10p., full text

The aim of this paper is to investigate the beginnings of crack propagation from sharp V-notches. Stress distribution around the tip of a V-notch is described on the basis of linear-elastic fracture mechanics. The V-notch is a singular stress concentrator with a singularity exponent dependent on the V-notch opening angle. The stability criteria are generalized for a stress singularity different from 0,5. Using FEM analysis the critical stress for crack initiation was estimated as a function of the V-notch angle. The results of numerical calculations were compared with experiments taken from the literature.

back to list of papers

Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.

Engineering Mechanics

International Conference

Proceedings Vol. 13 (2007)

ENGINEERING MECHANICS 2007