A synchrotron X-ray diffraction study of non-proportional strain-path effects
- Submitting institution
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University of Oxford
- Unit of assessment
- 12 - Engineering
- Output identifier
- 9450
- Type
- D - Journal article
- DOI
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10.1016/j.actamat.2016.11.011
- Title of journal
- Acta Materialia
- Article number
- -
- First page
- 290
- Volume
- 124
- Issue
- -
- ISSN
- 0956-7151
- Open access status
- Compliant
- Month of publication
- November
- Year of publication
- 2016
- URL
-
-
- Supplementary information
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-
- Request cross-referral to
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- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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7
- Research group(s)
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-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Non-proportional strain paths generate dramatic gains in ductility achieving strains well beyond the forming limit diagram. A first in situ biaxial deformation study including changes in strain ratio was undertaken at the Diamond Light Source. Lattice strain evolution was used to establish a sound constitutive law for a crystal plasticity model successfully capturing increased ductility for an overall near plane strain state obtained using uniaxial tension followed by balanced biaxial loading. Design tools capturing this provided industrial collaborators BMW-mini an opportunity to exploit otherwise unobtainable component shapes and helped lightweighting automotive components (Manager, BMW Materials Laboratory available to corroborate).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -