Fatigue behaviour of copper-brazed 316L stainless steelKralj, Jernej (Avtor) Hanželič, Blaž (Avtor) Glodež, Srečko (Avtor) Kramberger, Janez (Avtor) Satošek, Roman (Avtor) Nečemer, Branko (Avtor) plate heat exchangerbrazed jointfatigueexperimental testingThe plate heat exchanger (PHE) is a component that provides heat to be transferred from hot water to domestic cold water with-out mixing them with high efficiency. Over the lifetime of the PHE, cyclic pressure acts on the brazing points and the plates, andthis can lead to fatigue failure. The fatigue behaviour of the PHE, designed by using copper-brazed 316L (also known as 1.4404) stainless steel, was investigated by performing fatigue tests to obtain the S-N curve of the analysed brazed joint. The fatigue tests were performed on a Vibrophore 100 testing machine under the load ratio R= 0.1 for different values of calculated ampli-tude stress. Based on the obtained experimental results, an appropriate material model of the analysed brazed joint was created, which was validated with a numerical calculation in the framework of a program code Ansys. A validated material model canthen be used for the subsequent numerical analysis of the PHE.Institute of Metals and Technology, Ljubljana20242025-04-10 14:10:40Članek v reviji92468sl