物理与工程2025，Vol.35Issue(3)：31-37,7.
弛豫时间谱在研究黏弹性材料蠕变行为中的应用
APPLICATION OF RELAXATION TIME SPECTRUM IN STUDYING CREEP BEHAVIOR OF VISCOELASTIC MATERIALS
摘要
Abstract
As a typical characteristic of viscoelastic materials,creep has been proven to be an effective method for quantitatively studying their time-dependent structural relaxation phe-nomena,anelastic and plastic deformation behaviors.At the same time,creep reflects the real response of materials under long-term external loading,the creep resistance also serves as a critical parameter for assessing the service reliability and lifespan of engineering materials.Therefore,the study of creep behavior of viscoelastic materials not only provides to under-stand the deformation and fracture mechanism of amorphous solids,but also helps us to real-ize theoretical support for their practical application as engineering materials.Starting from the classical concept of creep,this paper first introduces the macroscopic evolution modes and microscopic mechanisms of creep.Subsequently,the important concept of relaxation time spectrum is introduced in conjunction with viscoelastic constitutive models.Taking amor-phous alloy as a typical viscoelastic material as an example,the construction method of the re-laxation time spectrum is described and its practical application in analyzing the creep behavior of amorphous alloy is discussed in detail.Synthesizing recent advances in our research on the creep behavior of amorphous solids,a novel approach that facilitates a deeper understanding of the time-dependent dynamical relaxation behavior of amorphous solids is proposed.This framework not only offers new perspectives for investigating the underlying mechanisms but also holds potential as a reference for educators teaching viscoelastic mechanics.关键词
蠕变/黏弹性理论/弛豫时间谱/非晶合金Key words
creep/viscoelasticity theory/relaxation time spectrum/amorphous alloy引用本文复制引用
乔吉超,徐宗睿..弛豫时间谱在研究黏弹性材料蠕变行为中的应用[J].物理与工程,2025,35(3):31-37,7.基金项目
西北工业大学教育教学改革研究项目资助项目(项目编号:2025JGZ17) （项目编号:2025JGZ17）
西北工业大学研究生教育综合改革发展创新项目(课程改革专项,项目编号:KCJG202513). （课程改革专项,项目编号:KCJG202513）
