On the effect of imperfections and spatial gradient regularization in strain softening viscoplasticity
β Scribed by M. Kulkarni; T. Belytschko
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 432 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0093-6413
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In this work, we have employed the strain gradient plasticity theory into the continuum mechanics to investigate the size effect of material on the crack propagation of micro-sized copper. Constitutive equation was re-formulated in terms of strain gradient and intrinsic material length. Elastic-plas
## Abstract Nonuniformities of magnetic field gradients can cause serious artifacts in diffusion imaging. While it is well known that nonlinearities of the imaging gradients lead to image warping, those imperfections can also cause spatially dependent errors in the direction and magnitude of the di