Enhanced Fracture Resistance Induced by Coupling Multiple Degrees of Freedom in Elastic Wave Metamaterials with Local Resonators
作者： Guo-Shuang Shui , Yi-Ze Wang , Yue-Sheng Wang , Yue-Sheng Wang , Kuan-Xin Huang
DOI: 10.1007/S10659-021-09825-9
关键词:
摘要: In this study, the dynamic effective parameters and crack arrest behavior of locally resonant metamaterials with multiple degrees freedom are investigated. Based on Wiener-Hopf method, energy release ratio which characterizes splitting resistance is derived, influences material discussed. comparison monoatomic lattice chain composed unit cells a single degree freedom, new periodic structure coupling displays some essential features during propagation. The results show that due to different displacements, growth in elastic wave exhibit lower ratio, indicates better fracture property. present work can be expected provide way improve ability resist propagation advanced materials structures.
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