Micromechanical modeling of non-linear stress-strain behavior of polycrystalline microcracked materials under tension
- 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.
| Author details: | Giovanni BrunoORCiDGND, Mark Kachanov, Igor SevostianovORCiD, Amit ShyamORCiD |
|---|---|
| DOI: | https://doi.org/10.1016/j.actamat.2018.10.024 |
| ISSN: | 1359-6454 |
| ISSN: | 1873-2453 |
| Title of parent work (English): | Acta materialia |
| Publisher: | Elsevier |
| Place of publishing: | Oxford |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2018/10/13 |
| Publication year: | 2018 |
| Release date: | 2021/04/15 |
| Tag: | Ceramics; Hysteresis; Nonlinearity; Polycrystals; Rocks; Stress-strain relations; Tension |
| Volume: | 164 |
| Number of pages: | 10 |
| First page: | 50 |
| Last Page: | 59 |
| Funding institution: | DFGGerman Research Foundation (DFG) [BR 5199/3-1]; Department of Education and Science of the Russian Federation [14.Z50.31.0036]; U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies, Propulsion Materials Program; U.S Department of Energy, Office of Fossil Energy, Solid State Energy Conversion Alliance (SECA) Program |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften |
| 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik | |
| Peer review: | Referiert |
| Publishing method: | Open Access / Green Open-Access |
