Interaction of cracks with dislocations in couple-stress elasticity. Part I: Opening mode.
- Submitting institution
-
University of Durham
- Unit of assessment
- 12 - Engineering
- Output identifier
- 109339
- Type
- D - Journal article
- DOI
-
10.1016/j.ijsolstr.2017.03.019
- Title of journal
- International Journal of Solids and Structures
- Article number
- -
- First page
- 179
- Volume
- 118-119
- Issue
- -
- ISSN
- 00207683
- Open access status
- Compliant
- Month of publication
- July
- Year of publication
- 2017
- URL
-
https://doi.org/10.1016/j.ijsolstr.2017.03.019
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
2
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- The microscopic interaction between a crack and a dislocation is a fundamental problem since it determines the macroscopic brittle or ductile material response. Unfortunately, the classical theory of fracture mechanics is inherently size-independent and does not account for the effects of the material microstructure. This is the first study that investigates the effects of microstructure in the interaction of a crack and a dislocation through a generalized continuum mechanics perspective. The results explain the experimentally observed size-effects in fracture of microstructured solids and were recently used as benchmark solutions for novel finite-element formulations [Markolefas et al. (2019). Archives of Mechanics,71(6),567-593].
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -
