Marko Knez (Avtor), Srečko Glodež (Avtor), Janez Kramberger (Avtor)

Povzetek

The paper deals with the research on the crack growth in a bolt connection of a lug for crane counter weight bars. Counter weight bars are structural elements subjected to very heavy loads and therefore need special attention. The main purpose of this research is to determine the number of load cycles required for a crack to propagate from initial to criticakl crack length, whenthe final failure can be expected to occur. All required material parameters and experimental results were determined in our previous research. The influence of the initial crack siye upon the remaining life of the lug is reserched numericallu by means of FE analysis and analytically by use of the corrected analystical model.

Ključne besede

lomna mehanika;ciklične obremenitve;rast razpoke;napoved porušitve;numerična analiza;vezni sornik;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija: UM FS - Fakulteta za strojništvo
UDK: 621.86:539.4:519.61./.64
COBISS: 11702550 Povezava se bo odprla v novem oknu
Št. ogledov: 1591
Št. prenosov: 31
Ocena: 0 (0 glasov)
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Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Analysis of crack initiation and growth in pinned joint of crane counterweight bar
Sekundarni povzetek: The paper deals with the research on the crack growth in a bolt connection of a lug for crane counter weight bars. Counter weight bars are structural elements subjected to very heavy loads and therefore need special attention. The main purpose of this research is to determine the number of load cycles required for a crack to propagate from initial to criticakl crack length, whenthe final failure can be expected to occur. All required material parameters and experimental results were determined in our previous research. The influence of the initial crack siye upon the remaining life of the lug is reserched numericallu by means of FE analysis and analytically by use of the corrected analystical model.
Sekundarne ključne besede: fracture mechanics;cyclic loading;fatigue crack growth;service life prediction;numerical analysis;bolt connection;
URN: URN:SI:UM:
Strani: Str. 115-122
ID: 8717404