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arXiv math/0407459math.AP
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一端固支弹性梁的渐近行为

Asymptotic behavior of an elastic beam fixed on a small part of one of its extremities

Juan Casado-Diaz, Manuel Luna-Laynez, Francois Murat

摘要:

研究了直径$ε$趋于零的圆柱体中各向异性非均匀线性弹性力学问题解的渐近性态。假设圆柱体在其一个端点上是固定的(齐次Dirichlet边界条件),但仅在第二个端点的一小部分(尺寸为$εr^ε$)上;在边界的其余部分上假设Neumann边界条件。我们发现,该结果取决于$r^ε$,并有3个临界尺寸,即$r^ε=ε^3$,$r^ε=ε$,和$r^ε=ε^{1/3}$,并在总共7个不同的制度。我们还证明了$r^ε$的每一个行为的校正结果。

英文摘要:

We study the asymptotic behavior of the solution of an anisotropic, heterogeneous, linearized elasticity problem in a cylinder whose diameter $ε$ tends to zero. The cylinder is assumed to be fixed (homogeneous Dirichlet boundary condition) on the whole of one of its extremities, but only on a small part (of size $εr^ε$) of the second one; the Neumann boundary condition is assumed on the remainder of the boundary. We show that the result depends on $r^ε$, and that there are 3 critical sizes, namely $r^ε=ε^3$, $r^ε=ε$, and $r^ε=ε^{1/3}$, and in total 7 different regimes. We also prove a corrector result for each behavior of $r^ε$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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