考虑温度效应的新型钢塑复合管屈服与失稳分析  

YIELDING AND BUCKLING ANALYSIS OF STEEL-PLASTIC COMPOSITE PIPE CONSIDERING THE EFFECT OF TEMPERATURE

作　　者：黄学伟[1] 蔡力勋[1] 李想 

机构地区：[1]西南交通大学力学与工程学院,四川成都610031 [2]四川东泰新材料科技有限公司,四川成都610100

出　　处：《工程力学》2010年第10期208-213,共6页Engineering Mechanics

基　　金：中央高校基本科研业务费专项资金项目(SWJTU09ZT35)

摘　　要：基于试验与有限元分析,给出了新型钢塑复合管的屈服强度和失稳强度,研究了影响钢塑复合管屈服与失稳强度的温度效应与尺寸效应,提出了预测钢塑复合管屈服与失稳强度的估算模型,当考虑1.2倍安全裕量时,该模型对外径规格为50mm―400mm的钢塑复合管屈服强度和失稳强度的预测精度可以得到保证。Based on the test and FEM analysis, yield stress and buckling strength of the steel-plastic composite pipes with different dimensions were given, and effects of temperature and dimension on the yield and buckling strength of steel-plastic composite pipes were investigated. A new model to estimate the yield strength and buckling strength of the steel-plastic composite pipes with out-diameter from 50mm to 400mm was presented and it has enough accuracy.

关 键 词：屈曲 钢塑复合管 数值模拟 试验 模型 

分 类 号：O344[理学—固体力学] TQ320.72[理学—力学]