Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test
Experimental loading and FEM simulation-based approach at macroscale are utilized to investigate the failure mechanisms of Al2O3 ceramics. Experimental characterization of microstructure is carried out using SEM. Recently the microscale models of representative volume of porous alumina ceramics were...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2019-07-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2496 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841562809187434496 |
|---|---|
| author | Mikhail Olegovich Eremin Igor Smolin Alexey Kulkov Valentina Mikushina |
| author_facet | Mikhail Olegovich Eremin Igor Smolin Alexey Kulkov Valentina Mikushina |
| author_sort | Mikhail Olegovich Eremin |
| collection | DOAJ |
| description | Experimental loading and FEM simulation-based approach at macroscale are utilized to investigate the failure mechanisms of Al2O3 ceramics. Experimental characterization of microstructure is carried out using SEM. Recently the microscale models of representative volume of porous alumina ceramics were built on the basis of grain and pore distribution patterns and subjected to uniaxial loading in order to determine effective mechanical characteristics which are utilized for macroscopic simulation in this work. Pre-fracture behavior of specimens undergoes the Drucker-Prager model with non-associated plastic flow rule. Experimental and numerical simulation fracture patterns show that material exhibits mixed mode I+II of crack propagation. Comparison of experimental data and numerical simulation data gives a good agreement. |
| format | Article |
| id | doaj-art-dea246b7509941088b5990b0be467259 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-dea246b7509941088b5990b0be4672592025-01-03T00:40:24ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-07-011350Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending TestMikhail Olegovich Eremin0Igor SmolinAlexey KulkovValentina MikushinaInstitute of Strength Physics and Materials Science of Siberian Branch of Russian Academy of SciencesExperimental loading and FEM simulation-based approach at macroscale are utilized to investigate the failure mechanisms of Al2O3 ceramics. Experimental characterization of microstructure is carried out using SEM. Recently the microscale models of representative volume of porous alumina ceramics were built on the basis of grain and pore distribution patterns and subjected to uniaxial loading in order to determine effective mechanical characteristics which are utilized for macroscopic simulation in this work. Pre-fracture behavior of specimens undergoes the Drucker-Prager model with non-associated plastic flow rule. Experimental and numerical simulation fracture patterns show that material exhibits mixed mode I+II of crack propagation. Comparison of experimental data and numerical simulation data gives a good agreement.https://www.fracturae.com/index.php/fis/article/view/2496Alumina ceramicsThree-point bendingCrack propagationFracture criterionExperimentNumerical simulation |
| spellingShingle | Mikhail Olegovich Eremin Igor Smolin Alexey Kulkov Valentina Mikushina Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test Fracture and Structural Integrity Alumina ceramics Three-point bending Crack propagation Fracture criterion Experiment Numerical simulation |
| title | Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test |
| title_full | Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test |
| title_fullStr | Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test |
| title_full_unstemmed | Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test |
| title_short | Investigation of Failure Mechanism of Al2O3 Specimens Subjected to Three-Point Bending Test |
| title_sort | investigation of failure mechanism of al2o3 specimens subjected to three point bending test |
| topic | Alumina ceramics Three-point bending Crack propagation Fracture criterion Experiment Numerical simulation |
| url | https://www.fracturae.com/index.php/fis/article/view/2496 |
| work_keys_str_mv | AT mikhailolegovicheremin investigationoffailuremechanismofal2o3specimenssubjectedtothreepointbendingtest AT igorsmolin investigationoffailuremechanismofal2o3specimenssubjectedtothreepointbendingtest AT alexeykulkov investigationoffailuremechanismofal2o3specimenssubjectedtothreepointbendingtest AT valentinamikushina investigationoffailuremechanismofal2o3specimenssubjectedtothreepointbendingtest |