Refine
Has Fulltext
- no (1)
Year of publication
- 2018 (1) (remove)
Document Type
- Article (1) (remove)
Language
- English (1) (remove)
Is part of the Bibliography
- yes (1)
Keywords
- Stress-strain relations (1) (remove)
Institute
The stress-strain behavior of microcracked polycrystalline materials (such as ceramics or rocks) under conditions of tensile, displacement-controlled, loading is discussed. Micromechanical explanation and modeling of the basic features, such as non-linearity and hysteresis in stress-strain curves, is developed, with stable microcrack propagation and "roughness" of intergranular cracks playing critical roles. Experiments involving complex loading histories were done on large- and medium grain size beta-eucryptite ceramic. The model is shown to reproduce the basic features of the observed stress-strain curves. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.