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Article: Numerical solutions on fracture of piezoelectric materials by hybrid element
Title | Numerical solutions on fracture of piezoelectric materials by hybrid element |
---|---|
Authors | |
Keywords | Crack-tip singularity Hybrid element Piezoelectric fracture |
Issue Date | 2001 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijsolstr |
Citation | International Journal Of Solids And Structures, 2001, v. 38 n. 24-25, p. 4315-4329 How to Cite? |
Abstract | The cracked piezoelectric problem is observed numerically. To simulate the characteristic singularity at the crack tip, a plane piezoelectric hybrid element is derived. The new model involves displacement u, stress σo, electric displacement D and electric potential p as independent variables. The electromechanical coupling behavior of the cracked piezoelectric ceramics PZT-4 and PZT-5 is investigated. Under impermeable crack condition, the 1/√r-singularity at the crack-tip zone is exactly represented for σ and D. The efficiency of implementing the permeable crack condition is also inspected. To examine current energy release rate formulas, the path-independent integral is computed, and then a fitting formula for the energy release rate is obtained. In this paper, all the numerical results are compared with the previously reported theoretical solutions. © 2001 Elsevier Science Ltd. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/54302 |
ISSN | 2023 Impact Factor: 3.4 2023 SCImago Journal Rankings: 0.988 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wu, CC | en_HK |
dc.contributor.author | Sze, KY | en_HK |
dc.contributor.author | Huang, YQ | en_HK |
dc.date.accessioned | 2009-04-03T07:42:41Z | - |
dc.date.available | 2009-04-03T07:42:41Z | - |
dc.date.issued | 2001 | en_HK |
dc.identifier.citation | International Journal Of Solids And Structures, 2001, v. 38 n. 24-25, p. 4315-4329 | en_HK |
dc.identifier.issn | 0020-7683 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/54302 | - |
dc.description.abstract | The cracked piezoelectric problem is observed numerically. To simulate the characteristic singularity at the crack tip, a plane piezoelectric hybrid element is derived. The new model involves displacement u, stress σo, electric displacement D and electric potential p as independent variables. The electromechanical coupling behavior of the cracked piezoelectric ceramics PZT-4 and PZT-5 is investigated. Under impermeable crack condition, the 1/√r-singularity at the crack-tip zone is exactly represented for σ and D. The efficiency of implementing the permeable crack condition is also inspected. To examine current energy release rate formulas, the path-independent integral is computed, and then a fitting formula for the energy release rate is obtained. In this paper, all the numerical results are compared with the previously reported theoretical solutions. © 2001 Elsevier Science Ltd. All rights reserved. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijsolstr | en_HK |
dc.relation.ispartof | International Journal of Solids and Structures | en_HK |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Crack-tip singularity | en_HK |
dc.subject | Hybrid element | en_HK |
dc.subject | Piezoelectric fracture | en_HK |
dc.title | Numerical solutions on fracture of piezoelectric materials by hybrid element | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0020-7683&volume=38&issue=24-25&spage=4315&epage=4329&date=2001&atitle=Numerical+solutions+on+fracture+of+piezoelectric+materials+by+hybrid+element | en_HK |
dc.identifier.email | Sze, KY:szeky@graduate.hku.hk | en_HK |
dc.identifier.authority | Sze, KY=rp00171 | en_HK |
dc.description.nature | postprint | en_HK |
dc.identifier.doi | 10.1016/S0020-7683(00)00279-1 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0035853863 | en_HK |
dc.identifier.hkuros | 60025 | - |
dc.identifier.volume | 38 | en_HK |
dc.identifier.issue | 24-25 | en_HK |
dc.identifier.spage | 4315 | en_HK |
dc.identifier.epage | 4329 | en_HK |
dc.identifier.isi | WOS:000168864900008 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Wu, CC=7501671955 | en_HK |
dc.identifier.scopusauthorid | Sze, KY=7006735060 | en_HK |
dc.identifier.scopusauthorid | Huang, YQ=7501573583 | en_HK |
dc.identifier.issnl | 0020-7683 | - |