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arXiv 0908.4001cond-mat.dis-nncond-mat.soft
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脱钉时接触线的弹性和雪崩尺寸分布

Elasticity of a contact-line and avalanche-size distribution at depinning

Pierre Le Doussal, Kay Joerg Wiese

摘要:

受最近的实验的启发,我们扩展了Joanny-deGennes计算的弹性接触线的任意接触角和任意板倾角存在重力。这就需要对非线性平衡曲线周围的弹性模式进行对角化,这是精确进行的。然后,我们对准静态脱钉时的雪崩尺寸分布进行了详细预测:我们研究了普遍的(即短尺度独立的)重新缩放的尺寸分布以及局部与全局雪崩的矩之比如何取决于弹性核的精确形式。

英文摘要:

Motivated by recent experiments, we extend the Joanny-deGennes calculation of the elasticity of a contact line to an arbitrary contact angle and an arbitrary plate inclination in presence of gravity. This requires a diagonalization of the elastic modes around the non-linear equilibrium profile, which is carried out exactly. We then make detailed predictions for the avalanche-size distribution at quasi-static depinning: we study how the universal (i.e. short-scale independent) rescaled size distribution and the ratio of moments of local to global avalanches depend on the precise form of the elastic kernel.

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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