论文标题
压缩薄膜中的塑料山脊形成
Plastic ridge formation in a compressed thin amorphous film
论文作者
论文摘要
我们证明，压缩薄膜中的表面形态发生可能是由空间相关的塑性活性引起的。柔软的玻璃膜强烈粘附在光滑刚性的底物上，并受到单轴压缩的实际上，并没有经历任何全球弹性模式形成的不稳定性，但通过自组织的局部爆发事件进行塑料反应，从而导致出现一系列平行脊向压缩轴线的横向侧面。这种现象被完全忽略了，但是玻璃塑料响应的共同特征的产生，因此对于压缩的玻璃薄膜应该是高通用的。
We demonstrate that surface morphogenesis in compressed thin films may result from spatially correlated plastic activity. A soft glassy film strongly adhering to a smooth and rigid substrate and subjected to uniaxial compression, indeed, does not undergo any global elastic pattern-forming instability, but responds plastically via localized burst events that self-organize, leading to the emergence of a series of parallel ridges transverse to the compression axis. This phenomenon has been completely overlooked, but results from common features of the plastic response of glasses, hence should be highly generic for compressed glassy thin films.
