journal article·2021-08

An algorithm for statistical evaluation of weld toe geometries using laser triangulation

Finn Renken, Rüdiger Ulrich Franz von Bock und Polach, Jan Schubnell, Matthias Jung, Markus Oswald, Klemens Rother, Sören Ehlers, Moritz Braun

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Abstract

Commonly, to evaluate the influence of the local weld geometry in fatigue test, small-scale specimens are used, assuming those represent a longer weld adequately. In this study, a comparison between short specimens and a long weld is performed. A method is developed for the statistical evaluation of weld toe radii and angles, stress concentration factors and weld quality classes. The results show a strong sampling rate dependence and lower ISO 5817:2014 weld quality results for higher sampling rates. Comparable results between short specimens and a long weld can be achieved using modal values of the parameters assuming a lognormal distribution.
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Research context

OpenAlex topics: Welding Techniques and Residual Stresses · Optical measurement and interference techniques · Advanced Measurement and Metrology Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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