硅酸盐通报2024，Vol.43Issue(5)：1850-1858,9.
基于格构模型理论的单纤维拉拔试验建模及仿真
Establishment and Simulation of Single Fiber Pull-Out Test Based on Lattice Model Theory
摘要
Abstract
The single fiber pull-out test of cement-based materials requires mechanical loading instruments with high precise,but the test operation is complicated,thus many laboratories do not have the ability to test.In order to slove this question,the discrete lattice model was adopted to simulate the pull-out process of single fiber from cementitious matrix using the stepwise method,and the fiber pull-out load-displacement response curve was obtained.The model was verified by the experimental data in the literature,and it is found that the simulation method can simulate the single fiber pull-out process and load-displacement curve.The influences of fiber direction,elastic modulus of fiber and interfacial bond strength on the pull-out load-displacement response curve were investigated using the model.The simulation results can be further used to study the influences of various factors on test results under different boundary conditions.The simulated results can be used to calculate the single-crack fiber bridging relationship of engineered cement-based composite,providing theoretical support for design of high toughness engineering cement-based composites.关键词
工程水泥基复合材料/格构模型/纤维单拔/拉拔荷载-位移/纤维方向/界面黏结强度Key words
engineering cement-based composite/lattice model/fiber single pull-out/pull-out load-displacement/fiber direction/interfacial bond strength分类
建筑与水利引用本文复制引用
赵翔鹏,李辉,杨青原,刘元珍,葛智,姜能栋,张洪智..基于格构模型理论的单纤维拉拔试验建模及仿真[J].硅酸盐通报,2024,43(5):1850-1858,9.基金项目
山东省泰山产业领军人才工程(tscy20230660) （tscy20230660）
国家自然科学基金(52008234) （52008234）
山东省泰山学者青年专家计划(tsgn201909032) （tsgn201909032）
