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- Andersson, Lars-ErikLinköpings universitet,Matematik och tillämpad matematik,Tekniska högskolan (author)
Existence and uniqueness for frictional incremental and rate problems - sharp critical bounds
- Article/chapterEnglish2016
Publisher, publication year, extent ...
- 2015-01-26
- WILEY-V C H VERLAG GMBH,2016
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- LIBRIS-ID:oai:DiVA.org:liu-124481
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-124481URI
- https://doi.org/10.1002/zamm.201400143DOI
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- Language:English
- Summary in:English
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- We investigate frictional contact problems for discrete linear elastic structures, in particular the quasistatic incremental problem and the rate problem. It is shown that sharp conditions on the coefficients of friction for unique solvability of these problems are the same. We also give explicit expressions of these critical bounds by using a method of optimization. For the case of two spatial dimensions the conditions are formulated as a huge set of non symmetric eigenvalue problem. A computer program for solving these problems was designed and used to compute the critical bounds for some structures of relative small size, some of which appeared in the literature. The results of a variety of numerical experiments with uniform and non uniform distributions of the frictional properties are presented. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Subject headings and genre
- NATURVETENSKAP Matematik Beräkningsmatematik hsv//swe
- NATURAL SCIENCES Mathematics Computational Mathematics hsv//eng
- Coulomb friction; quasistatic and rate problems; existence/uniqueness; sharp critical bounds; finite elements
Added entries (persons, corporate bodies, meetings, titles ...)
- Pinto da Costa, A.University of Lisbon, Portugal (author)
- Agwa, M. A.Zagazig University, Egypt (author)
- Linköpings universitetMatematik och tillämpad matematik (creator_code:org_t)
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- In:Zeitschrift für angewandte Mathematik und Mechanik: WILEY-V C H VERLAG GMBH96:1, s. 78-1050044-22671521-4001
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