不同受力状态下木材本构模型研究进展
Research progress on the constitutive models of timber under different stress states
陆斌辉 1陆伟东 1马晋 1徐超 2胡中平3
作者信息
- 1. 南京工业大学土木工程学院,江苏南京 211800
- 2. 中建三局科创产业发展有限公司,湖北武汉 430000;中建壹品投资发展有限公司,湖北 武汉 430000
- 3. 中建三局科创产业发展有限公司,湖北武汉 430000
- 折叠
摘要
复杂的本构模型虽然可以精确地模拟不同受力状态下木材的力学性能,但模型的计算效率和收敛均存在较大的难度.阐述了现有木材本构模型研究中的屈服准则、强化准则、流动法则和损伤准则,对比了不同准则的优缺点.评估了不同本构模型在木材、木结构构件和节点数值模拟分析中的适用性.总结了不同受力状态下合理、高效的本构模型,为木材本构模型研究和木结构数值模拟分析提供参考.
Abstract
There are significant difficulties in the calculation efficiency and convergence of numerical simulation of timber structures,when complex constitutive models of timber were adopted to describe the mechanical behavior of timber under different stress states.Based on the existing research progress on the constitutive models of timber,the yield criterions,hardening laws,flow rules and damage rules were clarified,and the advantages and disadvantages of these rules were compared.Different constitutive models of timber were assessed to provide suitable constitutive models of timber for the numerical simulations of timber,timber members and timber joints.Reasonable and efficient constitutive models of timber under different stress states were summarized,aiming to provide reference for the future researches on the constitutive models of timber and the numerical simulation of timber structures.
关键词
木材/本构模型/受力状态/弹塑性损伤/数值模拟Key words
timber/constitutive model/stress state/elasto-plastic damage/numerical simulation引用本文复制引用
基金项目
国家自然科学基金(52378240)
江苏省卓越博士后计划(2023ZB467)
出版年
2024
国家科技期刊平台
NSTL
万方数据