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On a uniformly-valid asymptotic plate theory

机译:在均匀有效的渐近板理论上

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摘要

A uniformly-valid plate theory, independent of the magnitudes of applied loads, is derived based on the two-dimensional plate theory obtained from series expansions about the bottom surface of a plate. For five different magnitudes of surface loads, it is shown by using asymptotic expansions that this unified plate theory recovers five well-known plate models in the literature to leading-order. This demonstrates its uniform validity. More generally, it provides a uniformly-valid plate model provided that two asymptotic conditions are satisfied, which can be checked as a posteriori. The weak formulation of the uniformly-valid plate equations is furnished, which can be used for finite element implementation.
机译:基于从围绕板块的底表面获得的串联膨胀获得的二维板理论,导出独立于施加负荷的幅度的均匀有效的板理论。对于五种不同的表面负荷大小,通过使用该统一板理论在文献中以领先顺序恢复五种公知的板式模型来显示渐近扩展。这证明了其统一的有效性。更一般地,它提供了一种均匀有效的板模型,条件是满足了两个渐近条件,其可以被检查为后验。提供均匀有效板方程的弱配方,可用于有限元实现。

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