Detail publikačního výsledku

Tortuous Cracks under Remote Mode I: the Statistical LEFM Approach.

POKLUDA, J.

Originální název

Tortuous Cracks under Remote Mode I: the Statistical LEFM Approach.

Anglický název

Tortuous Cracks under Remote Mode I: the Statistical LEFM Approach.

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Principles of the statistical approach to the stability of microtortuous cracks under the remote mode I loading are presented within the framework of linear elastic fracture mechanics. The basic idea of this approach lies in the suggestion that branching occurs only at those sites along the crack front, where the characteristic structural parameter (grain size, interparticle distance) is comparable to or larger than the plastic zone size. By using procedures introduced in the paper, extrinsic contribution to the fracture toughness or to the fatigue threshold can be separated from experimentally obtained KIc or ∆Kth values. Consequently, it enables to determine the intrinsic resistance against crack initiation and growth as a more relevant measure of materials quality. Moreover, this theory elucidates quantitatively well some interesting phenomena observed in fracture and fatigue of metallic materials.

Anglický abstrakt

Principles of the statistical approach to the stability of microtortuous cracks under the remote mode I loading are presented within the framework of linear elastic fracture mechanics. The basic idea of this approach lies in the suggestion that branching occurs only at those sites along the crack front, where the characteristic structural parameter (grain size, interparticle distance) is comparable to or larger than the plastic zone size. By using procedures introduced in the paper, extrinsic contribution to the fracture toughness or to the fatigue threshold can be separated from experimentally obtained KIc or ∆Kth values. Consequently, it enables to determine the intrinsic resistance against crack initiation and growth as a more relevant measure of materials quality. Moreover, this theory elucidates quantitatively well some interesting phenomena observed in fracture and fatigue of metallic materials.

Klíčová slova

LEFM, statistics, tortuous crack

Klíčová slova v angličtině

LEFM, statistics, tortuous crack

Autoři

POKLUDA, J.

Vydáno

01.01.2001

ISSN

1429-6055

Periodikum

Zeszyty naukowe politechniki Opolskiej seria Mechanika

Svazek

67

Číslo

7

Stát

Polská republika

Strany od

277

Strany počet

20

BibTex

@article{BUT40023,
  author="Jaroslav {Pokluda}",
  title="Tortuous Cracks under Remote Mode I: the Statistical LEFM Approach.",
  journal="Zeszyty naukowe politechniki Opolskiej seria Mechanika",
  year="2001",
  volume="67",
  number="7",
  pages="20",
  issn="1429-6055"
}