市政技术2026，Vol.44Issue(5)：99-109,11.DOI:10.19922/j.1009-7767.2026.05.099
考虑动力损伤应变率效应的岩石动力本构模型的研究
Study on the Rock Dynamic Constitutive Model Considering the Strain Rate Effect of Dynamic Damage
摘要
Abstract
To elucidate the mechanical response of rocks under dynamic loading,based on previous scholars' research on the characteristics of stress-strain curves under different strain rates,an expression for the co-evolution of damage variables with strain and strain rate was obtained by research on the relationship between energy dissipation and damage variables;Based on the Zhu-Wang-Tang(Z-W-T)model framework,a dynamic damage constitutive model of rocks was built;Both strain hardening/softening effects and strain rate-induced hardening/softening effects were considered simultaneously.The comparative results of the measured dynamic stress-strain curves of sandy mudstone and concrete indicate that the prediction of the proposed model shows close agreement with experimental data,indi-cating good applicability and rationality.This research finding can provide a useful reference for further exploration of the dynamic constitutive relations of rock-like materials and the engineering applications.关键词
岩石本构模型/朱-王-唐模型/应变率/黏滞效应/损伤变量Key words
rock constitutive model/Z-W-T model/strain rate/viscosity effect/damage variable分类
矿业与冶金引用本文复制引用
李亚军,戚承志,常庭瑞,王久康..考虑动力损伤应变率效应的岩石动力本构模型的研究[J].市政技术,2026,44(5):99-109,11.基金项目
国家自然科学基金重点项目(52438007) （52438007）
国家自然科学基金面上项目(12172036) （12172036）
北京建筑大学基金项目(AI+土木工程,X24029,ZF16087) （AI+土木工程,X24029,ZF16087）
中原青年拔尖人才支持项目(ZYQR201912156) （ZYQR201912156）
