| CONTACT MODEL BASED ON AUGMENTED LAGRANGE METHOD AND ITS ENGINEERING APPLICATION |
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| 作者姓名： | 常晓林 周伟 |
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| 作者单位： | Chang Xiaolin（State Key Laboratory of Water Resources and Hydropower
Engineering Science,Wuhan University,Wuhan 430072 China）
Zhou Wei（State Key Laboratory of Water Resources and Hydropower
Engineering Science,Wuhan University,Wuhan 430072 China） |
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| 摘 要： | 1INTRODUCTIONContactproblemsarehighlynonlinearandrequiresignificantcomputerresourcestosolve.Itisimportantthatweunderstandthephysicsoftheproblemandtakethetimetosetupactualmodeltorunasefficientlyaspossible.Contactproblemspresenttwosignificantdiffi-culties.First,wegenerallydonotknowtheregionsofcontactuntilwe'veruntheproblem.Dependingontheloads,material,boundaryconditions,andotherfactors,surfacescancomeintoandgooutofcontactwitheachotherinalargelyunpredictableandabruptmanner.Second,mostcontac…
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CONTACT MODEL BASED ON AUGMENTED LAGRANGE METHOD AND ITS ENGINEERING APPLICATION |
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| CHANG Xiaolin,Zhou Wei.CONTACT MODEL BASED ON AUGMENTED LAGRANGE METHOD AND ITS ENGINEERING APPLICATION[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(9):1568-1573. |
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| Authors: | CHANG Xiaolin Zhou Wei |
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| Abstract: | A kind of improved contact frictional model on basis of traditional Coulomb Friction model is adopted. Corresponding contact element is also given. The contact algorithm on basis of augmented Lagrange method is introduced and successfully applied to complex contact friction problem. Test example and actual engineering case all show that the algorithm of the model is efficient and computation results agree well with general rules. |
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| Keywords: | numerical analysis contact model friction model augmented Lagrange method |
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