Modal Analysis of Fixture with Specimens for Fatigue Testing of Welded Joints on Electrodynamic Shaker
Journal Title: Machine Design - Year 2017, Vol 9, Issue 4
Abstract
Light welded constructions from aluminum alloys are widely used in the automotive and aerospace industry. Particularly interesting are the lightweight construction made of aluminum alloys that are difficult to weld conventional welding procedures. Such structures are welded with Friction stir wlding (FSW), which is a relatively new way of welding. When dynamically loaded welded structures it is necessary to carry out testing of fatigue behavior of materials (the legality of fatigue crack growth and testing fatigue strength and determination of S-N curves). On Faculty of Mechanical Engineering in Nis has been developed a methodology based on the vibration tests based on the estimation that the fatigue behavior of welded joints achieved with FSW. In order to reduce the duration of the test, the test setup was developed for the simultaneous testing of a large number of specimens. For the generation of harmonic oscillations of console set specimen, used high-frequency electrodynamic vibration test system (shaker) Sentek Dynamics. The connection between the armature of shaker and test specimens is accomplished using a specially designed fixture.
Authors and Affiliations
Miodrag MILČIĆ, Dragan MILČIĆ, Boban ANĐELKOVIĆ
Keywords
Related Articles
- EP ID EP326889
- DOI 10.24867/MD.9.2017.4.133-138
- Views 81
- Downloads 0
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