论文标题
摩擦状态进化定律和动态剪切破裂的非线性成核
Frictional state evolution laws and the non-linear nucleation of dynamic shear rupture
论文作者
论文摘要
我们评估非线性界面滑动不稳定性的特征长度是否取决于滑动摩擦的理论描述。我们检查摩擦法律及其与接触中身体弹性的耦合，并表明这种长度并不总是存在。我们考虑了一系列有关摩擦强度的描述，并表明支持滑动不稳定性所需的区域对于更忠实于实验数据的法律而言，很小。这质疑最小地震大小是否存在，并表明动态破裂的成核阶段包含有关摩擦强度演化性质的歧视性信息。
We assess if a characteristic length for a non-linear interfacial slip instability follows from theoretical descriptions of sliding friction. We examine friction laws and their coupling with the elasticity of bodies in contact and show that such a length does not always exist. We consider a range of descriptions for frictional strength and show that the area needed to support a slip instability is negligibly small for laws that are more faithful to experimental data. This questions whether a minimum earthquake size exists and shows that the nucleation phase of dynamic rupture contains discriminatory information on the nature of frictional strength evolution.
