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Earth and Space Sciences · 术语表

什么是 Lithospheric flexure, flexural rigidity, effective elastic thickness？

又称： lithospheric flexure · flexural rigidity · effective elastic thickness

Definition 3.13 University Earth and Space Sciences — Year 3 · 第 3 章 — Gravity and the Figure of the Earth

Lithospheric flexure is the bending of the lithosphere under a load, modelled as the bending of a thin elastic plate floating on a fluid mantle. The plate’s resistance to bending is its flexural rigidity

D = \frac{ET_e^3}{12(1 - \nu^2)},

and the thickness $T_e$ of the uniform elastic plate that bends like the real lithosphere is its effective elastic thickness.

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