Stress Analysis of Wire Strands by Mesoscale Mechanics  

作　　者：TANG Yougang HE Xin LI Yan ZHANG Ruoyu HU Zhiqiang 

机构地区：[1]School of Civil Engineering,Tianjin University,Tianjin 300350,China [2]State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin 300450,China [3]School of Engineering,Newcastle University,NE17RU,UK

出　　处：《Journal of Ocean University of China》2022年第5期1118-1132,共15页中国海洋大学学报（英文版）

基　　金：funded by the National Natural Science Foundation of China(No.51879188);the Key R&D Project of Hebei Province(No.1827350D).

摘　　要：Steel wire ropes have wide application in a variety of engineering fields such as ocean engineering and civil engineering.The stress calculation for steel wire ropes is of crucial importance when conducting strength and fatigue analyses.In this study,we performed a finite element analysis of single-strand steel wire ropes.For the geometric modeling,we used an analytic geometry of space method.We established helical line equations and used the coordinates of the contact points.The finite-element model was simplified using the periodic law.Periodic boundary conditions were used to simulate a wire strand of infinite length under tensile strain,for which we calculated the cross-sectional stresses and inner forces.The results showed that bending and torsion moments emerged when the wire strand was under tensile load.In some cases,the bending stress reached 18%of the tensile stress,and the torsion stress reached 29%of the tensile stress,which means that the total stress was higher than the nominal stress.Whereas in ear-lier studies,a conservative prediction of nominal stress was not possible,the results of our strength and fatigue analyses were more conservative.

关 键 词：wire strand finite-element method(FEM) representative volume element(RVE) periodic boundary condition(PBC) 

分 类 号：P75[天文地球—海洋科学] TU31[建筑科学—结构工程]