Gradient plasticity frameworks arise from the consideration of the gradient of the plastic strain as an independent variable. In doing so a new material parameter, the internal length (or gradient coefficient) is introduced, which governs the gradient effects. Despite the efficiency of these theories, there does not exist a unified interpretation of the internal length, and its relationship with the material microstructure has not been clearly understood. The present article provides a review on the various interpretations that recent studies have provided for the internal length that go beyond fitting it to experimental data.
|Original language||English (US)|
|Number of pages||12|
|Journal||Reviews on Advanced Materials Science|
|State||Published - 2015|
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics