ISIS Neutron and Muon Source Data Journal

Crack Trajectory Modification due to Residual Stress induced by Laser Shock Peening

Abstract: Laser Shock Peening (LSP) is an advanced manufacturing process capable of introducing compressive residual stress within a component. Cracks in aeronautical structures can grow undetected between inspection periods. The move towards large, integral structures is making this issue more critical as these structures contain fewer natural crack-stopping features. LSP can address this issue by engineering unique residual-stress-guided crack propagation pathways. This effective combined stress state would then cause a deviation of the typical crack trajectory. Complex coupling of residual stresses and fracture mechanics is an extremely difficult problem to simulate. Hence we would like to investigate this interaction by neutron diffraction as it will allow for the characterisation of the stress field in a non-destructive fashion whilst allowing for full crack growth of the specimens.

Principal Investigator: Professor Michael Fitzpatrick
Experimenter: Professor Claudia Polese
Local Contact: Dr Joe Kelleher
Experimenter: Dr Daniel Glaser
Experimenter: Mr Mitchell Leering

DOI: 10.5286/ISIS.E.RB1910240

ISIS Experiment Number: RB1910240

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:
Professor Michael Fitzpatrick et al; (2019): Crack Trajectory Modification due to Residual Stress induced by Laser Shock Peening, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910240

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