This paper interprets the application of molecular dynamics(MD)simulations to the viscoelastic mechanical behavior of metallic glasses from a pedagogical point of view.The use of MD simulations to analyze the microstructure of metallic glass from the atomic scale provides a new perspective for a deeper understanding of the viscoelastic behavior of metallic glass.Creep,stress relaxation,and dynamic hysteresis are typical features of viscoelastic materials,which can be classified as relaxation behavior in metallic glasses,i.e.,the process in which a sub-stable atomic configuration jumps to the steady state or another sub-stable state under the stimulation of external force.In this paper,the viscoelastic cases of these three classes are investigated with the help of MD simulations in a typical CuZr metallic glass,so that students can better understand the microscopic behavioral characteristics of viscoelastic mechanics of metallic glasses and improve their understanding and mastery of knowledge in this field.
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