Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading
The mechanical behavior of fine-grained piezoelectric/substrate structure with screw dislocation and interface edge crack under the coupling action of heat, force and electricity are studied. Using the mapping function method, firstly, the finite area plane is transformed into the right semi-infinit...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/24/11922 |
| _version_ | 1797506752332169216 |
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| author | Shuaishuai Hu Junlin Li |
| author_facet | Shuaishuai Hu Junlin Li |
| author_sort | Shuaishuai Hu |
| collection | DOAJ |
| description | The mechanical behavior of fine-grained piezoelectric/substrate structure with screw dislocation and interface edge crack under the coupling action of heat, force and electricity are studied. Using the mapping function method, firstly, the finite area plane is transformed into the right semi-infinite plane, then the expression of the temperature field is given with the help of the complex function, and then the temperature field of the problem is achieved. By constructing the general solution of the governing equation with temperature function, the analytical expression of the image force is derived. Finally, the effects of material parameters, temperature gradient, coating thickness and crack size on image force are analyzed by numerical examples. The results show that the temperature gradient has a very significant effect on the image force, and thicker coating is conducive to the stability of dislocation and interface crack. |
| first_indexed | 2024-03-10T04:36:27Z |
| format | Article |
| id | doaj.art-3573aacc571a4f749b2877781065b6d8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T04:36:27Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-3573aacc571a4f749b2877781065b6d82023-11-23T03:40:27ZengMDPI AGApplied Sciences2076-34172021-12-0111241192210.3390/app112411922Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal LoadingShuaishuai Hu0Junlin Li1School of Mathematics and Statistics, Zhoukou Normal University, Zhoukou 466001, ChinaSchool of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaThe mechanical behavior of fine-grained piezoelectric/substrate structure with screw dislocation and interface edge crack under the coupling action of heat, force and electricity are studied. Using the mapping function method, firstly, the finite area plane is transformed into the right semi-infinite plane, then the expression of the temperature field is given with the help of the complex function, and then the temperature field of the problem is achieved. By constructing the general solution of the governing equation with temperature function, the analytical expression of the image force is derived. Finally, the effects of material parameters, temperature gradient, coating thickness and crack size on image force are analyzed by numerical examples. The results show that the temperature gradient has a very significant effect on the image force, and thicker coating is conducive to the stability of dislocation and interface crack.https://www.mdpi.com/2076-3417/11/24/11922fine-grained piezoelectric coatingscrew dislocationedge interface crackimage force |
| spellingShingle | Shuaishuai Hu Junlin Li Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading Applied Sciences fine-grained piezoelectric coating screw dislocation edge interface crack image force |
| title | Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading |
| title_full | Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading |
| title_fullStr | Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading |
| title_full_unstemmed | Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading |
| title_short | Interaction between Screw Dislocation and Interfacial Crack in Fine-Grained Piezoelectric Coatings under Steady-State Thermal Loading |
| title_sort | interaction between screw dislocation and interfacial crack in fine grained piezoelectric coatings under steady state thermal loading |
| topic | fine-grained piezoelectric coating screw dislocation edge interface crack image force |
| url | https://www.mdpi.com/2076-3417/11/24/11922 |
| work_keys_str_mv | AT shuaishuaihu interactionbetweenscrewdislocationandinterfacialcrackinfinegrainedpiezoelectriccoatingsundersteadystatethermalloading AT junlinli interactionbetweenscrewdislocationandinterfacialcrackinfinegrainedpiezoelectriccoatingsundersteadystatethermalloading |