Slip system-resolved GNDs and SEDs: A multi-scale framework for predicting crack nucleation in single-crystal metals
National University of Singapore · Nanyang Technological University · +6 more institutions
Abstract
Scalar forms of geometrically necessary dislocation (GND) and stored energy density (SED) are commonly used to capture localized strain gradients and damage in metals. However, these scalar approaches fail to provide detailed information at individual slip systems, thereby diminishing the slip system-dependent features critical to understanding plasticity and damage behavior. Here, we develop methods to resolve GNDs and SEDs onto individual slip systems through experimental techniques including multi-scale digital image correlation (DIC) and electron backscatter diffraction (EBSD), together with multi-scale simulation approaches including crystal plasticity finite element (CPFE) and discrete dislocation…
Citation impact
- FWCI
- 19.26
- Percentile
- 100%
- References
- 74
Authors
8Topics & keywords
- Materials science
- Nucleation
- Slip (aerodynamics)
- Metallurgy
- Composite material
- Mineralogy
- Thermodynamics
- Geology
- Climate action