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Nominal stress range fatigue of stainless steel fillet welds — the effect of weld size

✍ Scribed by Kari E. Lahti; Hannu Hänninen; Erkki Niemi

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
669 KB
Volume
54
Category
Article
ISSN
0143-974X

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✦ Synopsis

Three-point bending nominal stress range fatigue of stainless steel fillet welds was tested using two stainless steel grades: ferritic-martensitic EN 1.4003 and austenitic EN 1.4310. The test results obtained were shown to be in good agreement with suggested fatigue classes in the Eurocode 3 design standard, derived from fatigue data on structural steels. However, if the size of the weld was increased, and the failure location could be moved to the weld toe instead of the weld root, a significant increase in fatigue strength was observed. Eurocode 3 was found to describe well the fatigue characteristics of the 'worst-case' welds, i.e., welds prone to root failure.

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