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Test Procedure for Fatigue Investigations Regarding Structured Sheet Metal Joints by Fedor Kazak; Sabine Weiß is a Engineering article available to read on EtoBox.

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Abstract The topic of fatigue strength of joints of flat and honeycomb-structured thin sheets has not yet been adequately studied. This concerns, for example, the development of an appropriate test method. In many cases, there is still a lack of information, how effective joints of flat and structured sheet metals are in comparison with reference joints of flat sheets. Combinations of resistance spot-welded specimens of flat and honeycomb-structured thin sheets of deep-drawing steel DC04 with a thickness of 0.5 mm were examined. Adopted clamping plates were applied for the testing. Joined smooth specimens were used as a reference material. The analysis of the frequency [1] was applied for comparison. The fatigue limit of a joint of a flat and a structured sheet metal is not significantly affected by spot welding. The fatigue limit of these spot-welded joints is comparable to that of an unjoined honeycomb-structured sheet. By means of frequency or stiffness analysis, stability and damage mechanisms of differently shaped joints were explained. The joining of bridges of the structure shows a better stability than the combination of honeycombs. The stiffness analysis is a favored metho

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Author

Fedor Kazak; Sabine Weiß

Publisher

Walter de Gruyter GmbH

Published

2016

Language

EN

Field

Engineering (Physical Sciences)