The effects of temperature and vacancies on dynamics of crack in graphene sheet
Crack propagation in a defected graphene sheet is investigated at finite temperature using molecular dynamics simulation. The effects of several initial cracks, temperature and different percentage of vacancies are considered. It is found that i) the critical load, which is a criteria for crack prop...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2014-05-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4874296 |
| _version_ | 1818689123381149696 |
|---|---|
| author | A. Lohrasebi M. Amini M. Neek-Amal |
| author_facet | A. Lohrasebi M. Amini M. Neek-Amal |
| author_sort | A. Lohrasebi |
| collection | DOAJ |
| description | Crack propagation in a defected graphene sheet is investigated at finite temperature using molecular dynamics simulation. The effects of several initial cracks, temperature and different percentage of vacancies are considered. It is found that i) the critical load, which is a criteria for crack propagation, is larger when the load is applied on the zigzag direction, ii) the critical load decreases with increasing temperature, iii) a hole in the center of the sheet and the presence of randomly distributed vacancies reduce the critical load giving different crack propagation trajectory. Our new results would help to understand the crack propagation phenomena in defected graphene at finite temperature. |
| first_indexed | 2024-12-17T12:05:06Z |
| format | Article |
| id | doaj.art-c7f9156a72a7453ba93ee99e68c3d856 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-17T12:05:06Z |
| publishDate | 2014-05-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-c7f9156a72a7453ba93ee99e68c3d8562022-12-21T21:49:39ZengAIP Publishing LLCAIP Advances2158-32262014-05-0145057113057113-810.1063/1.4874296038404ADVThe effects of temperature and vacancies on dynamics of crack in graphene sheetA. Lohrasebi0M. Amini1M. Neek-Amal2Department of Physics, University of Isfahan, Isfahan, Iran.Department of Physics, University of Qom, Qom, IranDepartment of Physics, Shahid Rajaee Teacher Training University, Tehran, Iran.Crack propagation in a defected graphene sheet is investigated at finite temperature using molecular dynamics simulation. The effects of several initial cracks, temperature and different percentage of vacancies are considered. It is found that i) the critical load, which is a criteria for crack propagation, is larger when the load is applied on the zigzag direction, ii) the critical load decreases with increasing temperature, iii) a hole in the center of the sheet and the presence of randomly distributed vacancies reduce the critical load giving different crack propagation trajectory. Our new results would help to understand the crack propagation phenomena in defected graphene at finite temperature.http://dx.doi.org/10.1063/1.4874296 |
| spellingShingle | A. Lohrasebi M. Amini M. Neek-Amal The effects of temperature and vacancies on dynamics of crack in graphene sheet AIP Advances |
| title | The effects of temperature and vacancies on dynamics of crack in graphene sheet |
| title_full | The effects of temperature and vacancies on dynamics of crack in graphene sheet |
| title_fullStr | The effects of temperature and vacancies on dynamics of crack in graphene sheet |
| title_full_unstemmed | The effects of temperature and vacancies on dynamics of crack in graphene sheet |
| title_short | The effects of temperature and vacancies on dynamics of crack in graphene sheet |
| title_sort | effects of temperature and vacancies on dynamics of crack in graphene sheet |
| url | http://dx.doi.org/10.1063/1.4874296 |
| work_keys_str_mv | AT alohrasebi theeffectsoftemperatureandvacanciesondynamicsofcrackingraphenesheet AT mamini theeffectsoftemperatureandvacanciesondynamicsofcrackingraphenesheet AT mneekamal theeffectsoftemperatureandvacanciesondynamicsofcrackingraphenesheet AT alohrasebi effectsoftemperatureandvacanciesondynamicsofcrackingraphenesheet AT mamini effectsoftemperatureandvacanciesondynamicsofcrackingraphenesheet AT mneekamal effectsoftemperatureandvacanciesondynamicsofcrackingraphenesheet |