Detail publikačního výsledku

On the Crack Tip Shielding in Particle Reinforced Composites

HORNÍKOVÁ, J.; ŠANDERA, P.; POKLUDA, J.; KOTOUL, M.

Originální název

On the Crack Tip Shielding in Particle Reinforced Composites

Anglický název

On the Crack Tip Shielding in Particle Reinforced Composites

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper is focused on crack-tip shielding effects in particle reinforced composites. A numerical analysis by means of the ANSYS code was employed in order to assess these effects caused by rigid particles and holes in the matrix. As the first step, the effective stress intensity factor Keff was calculated for many crack tip positions in front, and in between, two particles of the same kind. The increasing volume fraction of rigid particles causes a significant decrease in the Keff-value (shielding), while leaving the geometry of the crack practically unaffected. On the other hand, the holes produce shielding only above the critical diameter/spacing ratio (d/l)c = 1. This critical value is expected to be much lower when considering both the finite tilting and the trapping of the crack tip.

Anglický abstrakt

The paper is focused on crack-tip shielding effects in particle reinforced composites. A numerical analysis by means of the ANSYS code was employed in order to assess these effects caused by rigid particles and holes in the matrix. As the first step, the effective stress intensity factor Keff was calculated for many crack tip positions in front, and in between, two particles of the same kind. The increasing volume fraction of rigid particles causes a significant decrease in the Keff-value (shielding), while leaving the geometry of the crack practically unaffected. On the other hand, the holes produce shielding only above the critical diameter/spacing ratio (d/l)c = 1. This critical value is expected to be much lower when considering both the finite tilting and the trapping of the crack tip.

Klíčová slova

crack-tip shielding effects, particle reinforced composites, effective stress intensity factor

Klíčová slova v angličtině

crack-tip shielding effects, particle reinforced composites, effective stress intensity factor

Autoři

HORNÍKOVÁ, J.; ŠANDERA, P.; POKLUDA, J.; KOTOUL, M.

Vydáno

01.01.2005

Místo

Mallorca, Spain

ISBN

0-9547783-1-6

Kniha

4th International Conference on Fracture and Damage Mechanics

Edice

1

Strany od

509

Strany do

512

Strany počet

4

BibTex

@inproceedings{BUT16262,
  author="Jana {Horníková} and Pavel {Šandera} and Jaroslav {Pokluda} and Michal {Kotoul}",
  title="On the Crack Tip Shielding in Particle Reinforced Composites",
  booktitle="4th International Conference on Fracture and Damage Mechanics",
  year="2005",
  series="1",
  number="1",
  pages="509--512",
  address="Mallorca, Spain",
  isbn="0-9547783-1-6"
}