Blistering occurs when a thin solid layer locally separates from an underlying substrate through cracking of a bulk material, delamination of a composite material, or peeling of a membrane adhered to the substrate by a thin layer of viscous fluid. In this last scenario, the expansion of the newly formed blister by fluid injection occurs via a displacement flow, which peels apart the adhered surfaces through a two-way interaction between flow and deformation. Such blisters are prone to fluid and solid mechanical instabilities. If the injected fluid is less viscous than the fluid already occupying the gap, patterns of short and stubby fingers form on the propagating fluid interface. This process is regulated by membrane compliance, which if increased delays the onset of fingering to higher flow rates and reduces finger amplitude. Suppression is mediated by the locally tapered geometry of the blister near the fluid interface, which is imposed by the underlying blistering flow. Buckling/wrinkling instabilitie...

中文翻译：

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起泡不稳定

当薄的固体层通过散装材料的破裂、复合材料的分层或由粘性流体薄层粘附在基材上的膜剥离时，薄的固体层与下面的基材局部分离时会发生起泡。在最后一种情况下，通过流体注入新形成的泡罩的膨胀是通过置换流发生的，置换流通过流动和变形之间的双向相互作用将粘附表面剥离。这种水泡容易出现流体和固体机械不稳定性。如果注入的流体比已经占据间隙的流体粘性小，则在传播的流体界面上会形成短而粗的指状图案。该过程由膜顺应性调节，如果增加，则指法开始延迟到更高的流速并降低指法幅度。抑制是由流体界面附近鼓泡的局部锥形几何形状介导的，这是由下面的鼓泡流强加的。屈曲/起皱不稳定...