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2 2011

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The simulation and the experimental verification of the influence of the tig - welding of the aluminium alloy AlMgSi07 on changes of the mechanical properties in comparison with the basic material

Blatnický Miroslav, Kopas Peter, Sága Milan

Studia i Materiały Informatyki Stosowanej

2011

nr 4

49--54

The aim of this investigation is to evaluate the influence on fatigue behavior of the welded aluminum alloy AlMgSi07. For the experimental measurement of fatigue of these welds, it is needed to analyse all the changes, which will occur in the weld material in comparison with the basic material. The modern computer simulation and the experimental verification are strong tools for achievement of the required results, for instance a change of the structure, residual stress, a range of the heat affected zone, a deformation of the workpiece etc.

Modeling of multiaxial state of stress and determine the fatigue lifetime for aluminum alloy during cyclic loadingunder in-and-out of phase shift Φ = 0° and Φ = 90

Uhríčik Milan, Kopas Peter, Sága Milan

Studia i Materiały Informatyki Stosowanej

2011

nr 5

9--13

This article deals with determining of fatigue lifetime of structural materials during by multiaxial cyclic loading. The theoretical part deals with the fatigue and with the criterions for evaluation of multiaxial fatigue lifetime. The experimental part deals with modeling of combined bending - torsion loading and determining the number of cycles to fracture in region low-cycle and high-cycle fatigue and also during of loading with the sinusoidal wave form under in phase Φ = 0° and out phase Φ = 90°.