ISIS Neutron and Muon Source Data Journal

Crack behavior in a residual stress field at fillet welds in ship structure

Abstract: Fillet welds are used in joining longitudinal stiffeners in ship structures. Welding residual stresses in fillet welds are generally distributed in a non-uniform manner. As the residual stress influences the crack propagation originating from the toe of the fillet welds, a full understanding of the residual stress field and how it evolves is very important for structural integrity calculations. Previous work was aimed at determining the residual stress redistribution under cyclic loading in the elastic shakedown regime. However, that work did not consider the presence of any flaw or defect: knowledge of the residual stress redistribution in the presence of a flaw is therefore required for better fatigue life prediction. Moreover, defect assessment procedures such as BS7910 offer very limited guidance for flaw acceptance and the associated residual stress redistribution in the assessment of fillet welds. Therefore, the objective of this work is to study the effect of a surface-breaking flaw at the weld toe region in a fillet weld under cyclic load to determine the residual stress evolution at pre-defined crack depths.

Local Contact: Dr Tung Lik Lee
Experimenter: Mr Anurag Niranjan
Experimenter: Professor Michael Fitzpatrick

DOI: 10.5286/ISIS.E.RB2310293

ISIS Experiment Number: RB2310293

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Tung Lik Lee et al; (2023): Crack behavior in a residual stress field at fillet welds in ship structure, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310293

Data is released under the CC-BY-4.0 license.