Abstract
We consider the numerical solution of a nonlinear evolutionary variational inequality, arising in the study of quasistatic contact problems. We study spatially semi-discrete and fully discrete schemes for the problem with several discontinuous Galerkin discretizations in space and finite difference discretization in time. Under appropriate regularity assumptions on the solution, a unified error analysis is established for the schemes, reaching the optimal convergence order for linear elements. Numerical results are presented on a two dimensional test problem to illustrate numerical convergence orders.
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We thank the two anonymous referees for their valuable comments that lead to an improvement of the paper.
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F. Wang was supported by the Chinese National Science Foundation (Grant No. 11101168). W. Han was supported by grants from the Simons Foundation. X. Cheng was supported by the Key Project of the Major Research Plan of NSFC (Grant No. 91130004).
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Wang, F., Han, W. & Cheng, X. Discontinuous Galerkin methods for solving a quasistatic contact problem. Numer. Math. 126, 771–800 (2014). https://doi.org/10.1007/s00211-013-0574-0
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DOI: https://doi.org/10.1007/s00211-013-0574-0