| Title:
|
Theoretical analysis of discrete contact problems with Coulomb friction (English) |
| Author:
|
Ligurský, Tomáš |
| Language:
|
English |
| Journal:
|
Applications of Mathematics |
| ISSN:
|
0862-7940 (print) |
| ISSN:
|
1572-9109 (online) |
| Volume:
|
57 |
| Issue:
|
3 |
| Year:
|
2012 |
| Pages:
|
263-295 |
| Summary lang:
|
English |
| . |
| Category:
|
math |
| . |
| Summary:
|
A discrete model of the two-dimensional Signorini problem with Coulomb friction and a coefficient of friction $\mathcal {F}$ depending on the spatial variable is analysed. It is shown that a solution exists for any $\mathcal {F}$ and is globally unique if $\mathcal {F}$ is sufficiently small. The Lipschitz continuity of this unique solution as a function of $\mathcal {F}$ as well as a function of the load vector $\boldsymbol {f}$ is obtained. Furthermore, local uniqueness of solutions for arbitrary $\mathcal {F} > 0$ is studied. The question of existence of locally Lipschitz-continuous branches of solutions with respect to the coefficient $\mathcal {F}$ is converted to the question of existence of locally Lipschitz-continuous branches of solutions with respect to the load vector $\boldsymbol {f}$. A condition guaranteeing the existence of locally Lipschitz-continuous branches of solutions in the latter case and results for determining their directional derivatives are given. Finally, the general approach is illustrated on an elementary example, whose solutions are calculated exactly. (English) |
| Keyword:
|
unilateral contact |
| Keyword:
|
Coulomb friction |
| Keyword:
|
local uniqueness |
| Keyword:
|
qualitative behaviour |
| MSC:
|
74G20 |
| MSC:
|
74G55 |
| MSC:
|
74M10 |
| MSC:
|
74M15 |
| MSC:
|
74S05 |
| idZBL:
|
Zbl 1265.74069 |
| idMR:
|
MR2984603 |
| DOI:
|
10.1007/s10492-012-0016-9 |
| . |
| Date available:
|
2012-06-08T10:01:40Z |
| Last updated:
|
2020-07-02 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/142853 |
| . |
| Reference:
|
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| Reference:
|
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| Reference:
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| . |
