大型H型钢矫后残余应力分析与检测研究  

Residual Stress Distribution After Big H-Beam Pose and Testing Research

作　　者：郭喜平[1] 李银平[2] 冯云鹏[2] 

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010 [2]包头钢铁集团公司轨梁厂,内蒙古包头014010

出　　处：《机械设计与制造》2015年第12期115-117,121,共4页Machinery Design & Manufacture

基　　金：内蒙古自治区自然科学基金项目(2013MS0717)

摘　　要：针对某钢铁厂的实际需求,通过大量的实践研究建立了大型H型钢HN1000×300矫直模拟过程中的几何模型、材料模型、网格划分方法、边界条件设置的问题,利用该有限元模型通过采用ANSYS Workbench 14.5多物理场软件分析平台成功的完成了大型H型钢HN1000×300矫直过程的数值模拟。同时对矫后残余应力进行了分析和检测,由于残余应力的存在会使钢结构中的构件提前进入塑性状态,对构件的承载力和极限刚度等相关力学性能产生很大的影响,致使其寿命和安全性也大大降低。因此,全面掌握残余应力的成因分布和检测方法,对实际生产生活具有重要的指导意义和参考价值。In the light of the actual demand of a steel plant,The large H-beam HN1000×300 straightening the simulation of direct set of geometric model,material model;meshing means ,boundary conditions have been established by many practice studies, the numerical simulation of straightening process of the large HN1000×300 straightening with the finite element model was successfully done by ANSYS Workbench 14.5 multi-physics Platform. Analyzes and detects straightening residual stress at the same time, Because the existence of residual stress will make steel structure component advance into plastic condition, the component bearing stress, limit stiffness and other mechanical properties will be impacted greatly, what＇s more, the life and safety are reduced greatly. Therefore, mastering the residual stress genetic distribution and testing means will have an important guiding significance and reference value on actual production and life.

关 键 词：大型H型钢 矫直 矫后残余应力 成因分析 检测 

分 类 号：TH16[机械工程—机械制造及自动化] TG333.2[金属学及工艺—金属压力加工]