Uniform decay rates for full von Karman system of dynamic thermoelasticity with free boundary conditions and partial boundary dissipation

被引:57
|
作者
Lasiecka, I [1 ]
机构
[1] Univ Virginia, Dept Math, Charlottesville, VA 22903 USA
基金
美国国家科学基金会;
关键词
D O I
10.1080/03605309908821483
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The full von Karman system accounting for in plane acceleration and thermal effects is considered. The main results of the paper are: (i) the wellposedness of regular and weak (finite energy) solutions, (ii) the uniform decay rates obtained for the energy function in the presence of boundary damping affecting only the velocity field representing in plane displacements of the plate. The key role in these results is played by: (i) new sharp regularity estimates for the boundary traces of elastic systems and (ii) newly established properties of analyticity of semigroups arising in thermoelastic systems with free boundary conditions.
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页码:1801 / 1847
页数:47
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