engleski

Shot peening intensity influence on the fatigue behaviour of aluminium alloy ASTM 2011

The aim of this study is to determine the possibilities of mass reduce of dynamically loaded aluminum alloy structures. Specimens were prepared from heat-hardened aluminum alloy ASTM 2011. In order to improve the fatigue behavior the Specimens were shot-peened. The experiment was planned using the software package "Design Expert". The research results were used to develop mathematical function among: lifetime, the level of alternating symmetric stress and Almen intensity. These results indicate the possibility of mass reduction of structural elements from ASTM 2011, according to the selected parameters.

shot peening ; aluminium precipitation ; Almen intensity ; fatigue testing

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