东南大学学报（自然科学版）2025，Vol.55Issue(4)：942-954,13.DOI:10.3969/j.issn.1001-0505.2025.04.003
基于能量转化的海工混凝土损伤模型与调控方法
Damage modeling and regulation of marine concrete based on energy transformation
摘要
Abstract
Damage to concrete can be characterized by energy transformation,while energy dissipation is the core property of concrete deformation damage,which reflects the continuous development of internal micro-de-fects in concrete,and weakening and eventual loss of strength.Aiming at the temperature damage caused by the concentrated release of thermal energy in marine concrete,this paper analyzes the damage process of quasi-brittle materials such as concrete from the energy perspective.Firstly,the multiscale constitutive relationship between the content of each physical phase,morphology,thermal conductivity and macroscopic thermal con-ductivity is proposed.Secondly,the relationship between thermal energy,strain energy and damage state of mass concrete is deduced;then a concrete damage evolution model based on the energy transformation is estab-lished.Finally,the damage state of the concrete with energy changes is analyzed.The results show that the proposed low-temperature rise regulation strategy with the synergistic effect of heat retardation-heat storage-heat conduction can effectively inhibit the development of temperature damage in mass concrete by op-timizing the energy transport path and heat flow density distribution,providing a new theoretical basis and technical support for the temperature control and crack prevention of marine concrete structures.关键词
海工混凝土/热能/应变能/损伤耗能/损伤分析Key words
marine concrete/thermal energy/strain energy/damage dissipation/damage analysis分类
建筑与水利引用本文复制引用
蒋金洋,孙晓燕,许文祥,王立国..基于能量转化的海工混凝土损伤模型与调控方法[J].东南大学学报（自然科学版）,2025,55(4):942-954,13.基金项目
国家自然科学基金原创探索计划延续资助项目(52350004) （52350004）
国家杰出青年科学基金资助项目(51925903). （51925903）
