Tehnički glasnik, Vol. 9 No. 4, 2015.
Izvorni znanstveni članak
Fatigue behaviour of lotus-type porous structure: numerical approach
Matjaž Šrambl
orcid.org/0000-0002-0638-2703
; Faculty of Civil Engineering, University of Maribor, Maribor, Slovenia
Janez Kramberger
orcid.org/0000-0001-9112-1091
; Faculty of Mech. Engineering, University of Maribor, Maribor, Slovenia
Sašo Dervarič
; Faculty of Mech. Engineering, University of Maribor, Maribor, Slovenia
Srečko Glodež
; Faculty of Mech. Engineering, University of Maribor, Maribor, Slovenia
Sažetak
The objective of this paper is to analyse fatigue strength behaviour of lotus-type structure with nodular cast iron as a base material. The number of stress cycles required for crack propagation from initial to the critical crack length is numerically determined using finite element (FE) models, in the frame of Abaqus computation FEM code. The maximum tensile stress (MTS) criterion is considered when analyzing the crack path inside the porous structure. The performed computational analyses show that stress concentrations around individual pores are higher when external loading is acting in transversal direction in respect to the pore distribution. The actual paper is prolongation of the work, presented at the last MATRIB conference in 2014 [1].
Ključne riječi
Lotus-type porous structures; fatigue strength; numerical analysis
Hrčak ID:
149750
URI
Datum izdavanja:
15.12.2015.
Posjeta: 1.045 *