The penalty-free Nitsche Method and nonconforming finite elements for the Signorini problem
2017 (English)In: SIAM Journal on Numerical Analysis, ISSN 0036-1429, E-ISSN 1095-7170, Vol. 55, no 6, p. 2523-2539Article in journal (Refereed) Published
Abstract [en]
We design and analyse a Nitsche method for contact problems. Compared to the seminal work of Chouly and Hild [SIAM J. Numer. Anal., 51 (2013), pp. 1295--1307], our method is constructed by expressing the contact conditions in a nonlinear function for the displacement variable instead of the lateral forces. The contact condition is then imposed using the nonsymmetric variant of Nitsche's method that does not require a penalty term for stability. Nonconforming piecewise affine elements are considered for the bulk discretization. We prove optimal error estimates in the energy norm.
Place, publisher, year, edition, pages
Society for Industrial and Applied Mathematics, 2017. Vol. 55, no 6, p. 2523-2539
Keywords [en]
Contact; Finite element; Nitsche's method; Signorini problem
National Category
Mathematical Analysis
Identifiers
URN: urn:nbn:se:hj:diva-37817DOI: 10.1137/16M107846XISI: 000418663500001Scopus ID: 2-s2.0-85039957543OAI: oai:DiVA.org:hj-37817DiVA, id: diva2:1154644
2017-11-032017-11-032018-04-24Bibliographically approved