Influence of geometry and safety factor on fatigue damage predictions of a cantilever beam

Pečnik, Matija (avtor), Nagode, Marko (avtor), Šeruga, Domen (avtor)

The influence of two parameters on fatigue damage predictions of a variably loaded cantilever beam has been examined. The first parameter is the geometry of the cantilever beam and the weld connecting it to a rear panel. Variables of the geometry examined here include the cantilever length, the weld width on the critical cross-section and the angle of the critical cross-section. The second parameter is the safety factor, as set out by the Eurocode 3 standard. An analytical approach has been used to calculate the stresses at the critical cross-section and standard rainflow counting has been used for the extraction of the load cycles from the load history. The results here suggest that a change in the width and angle of the critical cross-section has a non-linear impact on the fatigue damage. The results also show that the angle of the critical cross-section has the biggest influence on the fatigue damage and can cause the weld to withstand fatigue better. The second parameter, the safety factor, is shown to have a significant effect on the fatigue damage calculation, whereby a slight increase in the endurance safety factor can cause the calculated fatigue damage to increase considerably.

• Jezik: Angleški jezik
• Ključne besede: fatigue damage, welded joint, rainflow, cantilever beam, fatigue
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2019
• Št. strani: Str. 33-41
• Številčenje: Vol. 70, no. 1
• PID: 20.500.12556/RUL-107393
• UDK: 539.43:620.178.3(045)
• ISSN pri članku: 1225-4568
• DOI: 10.12989/sem.2019.70.1.033
• COBISS.SI-ID: 16558875
• Datum objave v RUL: 10.04.2019

Gradivo je del revije

• Naslov: Structural engineering and mechanics
• Skrajšan naslov: Struct. eng. mech.
• Založnik: Techno-press
• ISSN: 1225-4568
• COBISS.SI-ID: 15455749

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: poškodbe, utrujanje, zvari, konzole, števne metode

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0182
• Naslov: Razvojna vrednotenja