Publication detail

Mechanism of Factory-Roof Formation

POKLUDA, J. SLÁMEČKA, K. ŠANDERA, P.

Czech title

Mechanismus vzniku morfologie factory-roof

English title

Mechanism of Factory-Roof Formation

Type

journal article - other

Language

en

Original abstract

A three-dimensional model of F-R patterns was constructed by means of stereophotogrammetry in the scanning electron microscope and the basic geometrical rules of F-R formation were identified. The theoretical analysis revealed that the F-R initiates by elementary mode I branches of semi-elliptical surface cracks growing under mixed-mode II + III as a result of the synergy effect. The fact that F-R patterns are usually not observed in the low-cycle fatigue region is also explained.

Czech abstract

3D model F-R znaků byl stereofotogrammetricky zkonstruován a byla identifikována základní geometrická pravidla jejich vývoje. Teoretická analýza ukázala, že F-R iniciují na mód I větvích na semieliptických trhlinách jako důsledek synergie módu II+III. Byla rovněž zdůvodněna skutečnost, že F-R nejsou zpravidla pozorovány při nízkocyklové únavě.

English abstract

A three-dimensional model of F-R patterns was constructed by means of stereophotogrammetry in the scanning electron microscope and the basic geometrical rules of F-R formation were identified. The theoretical analysis revealed that the F-R initiates by elementary mode I branches of semi-elliptical surface cracks growing under mixed-mode II + III as a result of the synergy effect. The fact that F-R patterns are usually not observed in the low-cycle fatigue region is also explained.

Keywords in Czech

morfologie factory-roof, cyklické namáhání v krutu, stereophotogrammetrie, vývojový mechanismus

Keywords in English

Factory-roof, Torsional fatigue loading, Stereophotogrammetry, Formation mechanism

RIV year

2010

Released

01.07.2010

ISSN

0013-7944

Journal

Engineering Fracture Mechanics

Volume

77

Number

1

Pages from–to

1763–1771

Pages count

9

BIBTEX


@article{BUT49829,
  author="Jaroslav {Pokluda} and Karel {Slámečka} and Pavel {Šandera},
  title="Mechanism of Factory-Roof Formation",
  journal="Engineering Fracture Mechanics",
  year="2010",
  volume="77",
  number="1",
  month="July",
  pages="1763--1771",
  issn="0013-7944"
}