A Dislocation-based Model for the Dynamics of Sliding Precursors
作者机构：Department of MechanicsSchool of Mechanical EngineeringTianjin UniversityTianjin300350China
出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)
年 卷 期：2021年第34卷第5期
页 面：624-631页
核心收录：
学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）]
基 金：The authors are grateful for the support by the National Natural Science Foundation of China under Grant Nos.1177220 12021002 and 11572216
主 题：Sliding precursor Crack-like defects Moving dislocations Dislocation emission
摘 要：The onset of dynamic friction plays an important role in the study of sliding ***,the sliding precursors in the form of crack-like defects have been detected in experiments and their strain fields have been measured to be comparable to those of moving *** the present work,we considered the dynamics of sliding precursors by solving the elastic problem due to a moving dislocation in a half-plane and the transient emission of a dislocation at the *** has been found that both the strain field of a moving dislocation and the spatiotemporal evolution agree well with those of a sliding precursor detected in *** results may cast new light to the dynamics of sliding onset.
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