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首页> 外文期刊>The European physical journal, E. Soft matter >Confinement-induced instability and adhesive failure between dissimilar thin elastic films
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Confinement-induced instability and adhesive failure between dissimilar thin elastic films

机译：不同弹性薄膜之间的约束诱发的不稳定性和粘合破坏

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摘要

When two thin soft elastomeric films are separated from each other, an elastic instability develops at the interface. Although similar instability develops for the case of a soft film separating from a rigid adherent, there are important differences in the two cases. For the single-film case, the wavelength of instability is independent of any material properties of the system, and it scales only with thickness of the film. For the two-film case, a co-operative instability mode develops, which is a non-linear function of the thicknesses and the elastic moduli of both films. We investigate the development of such instability by energy minimization procedures. Understanding the nature of this instability is important, as it affects the adhesive compliance of the system and thus the energy release rate in the debonding of soft interfaces.
机译：当两个薄的软弹性体膜彼此分开时，在界面处产生弹性不稳定性。尽管对于软膜与刚性粘附体分离的情况，发展出类似的不稳定性，但在两种情况下仍存在重要差异。对于单膜情况，不稳定性的波长与系统的任何材料特性无关，并且仅随膜的厚度缩放。对于两层膜的情况，发展了一种不稳定性合作模式，这是两层膜的厚度和弹性模量的非线性函数。我们通过能量最小化程序研究了这种不稳定性的发展。了解这种不稳定性的性质非常重要，因为它会影响系统的粘合剂柔顺性，从而影响软界面脱粘过程中的能量释放速率。

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