河南科技大学学报（自然科学版）2024，Vol.45Issue(1)：62-67,6.DOI:10.15926/j.cnki.issn1672-6871.2024.01.008
静力荷载作用下微观负泊松比锚杆的本构模型
Constitutive Model of Micro Negative Poisson's Ratio Anchor Bolts under Static Loading
摘要
Abstract
Micro negative poisson's rotio(NPR)anchor bolts have mechanical properties of high stress and high uniform extension,however,the study of its constitutive modelling has not been particularly in-depth.Therefore,the tensile test of micro NPR anchor bolts under static loading was carried out,the strain field evolution law of micro NPR anchor bolts during static tensile was investigated,and the stress-strain relationship curve of micro NPR anchor bolts was obtained.Based on the experimental results,the constitutive model of the micro NPR anchor bolts was established,and the constitutive model was embedded into the ABAQUS finite element software,the numerical analyses of micro NPR anchor bolts under static loading were carried out.Comparison of the experimental results and the results of numerical analyses shows that they are in good agreement,indicating that the established constitutive model can better represent the mechanical properties of micro NPR anchor bolts.关键词
微观NPR锚杆/静力拉伸/本构模型Key words
micro-NPR/static tensile/constitutive model分类
建筑与水利引用本文复制引用
张伟,赵亮,陈峰,陶志刚,崔龙飞..静力荷载作用下微观负泊松比锚杆的本构模型[J].河南科技大学学报（自然科学版）,2024,45(1):62-67,6.基金项目
国家自然科学基金项目(42377154) （42377154）
河南省科技攻关项目(232102320238) （232102320238）
