华东理工大学学报：自然科学版2012，Vol.38Issue(1)：107-115,9.
三点弯小试样测试材料蠕变性能的方法
A Method of Deriving Material Bending Small Creep Properties by Three-Point Specimen Tests
摘要
Abstract
A method of deriving creep properties by three-point bending creep tests is described. Based on this method, the three-point bending creep tests of 23CrMoNiWV88 steel operated at constant loads and temperature（540 ） are simulated by finite element method. The variation of central deflection and stress with time are analyzed. The numerical results show that it is feasible to obtain creep parameters from the small bending specimen. Furthermore, the relationship between the three-point bending and uniaxial creep tests is conducted and creep constants are derived. The results show that the creep constants estimated from three-point bending creep tests agree well with those theoretical values, and the analytical formula are modified according to the numerical results. Meanwhile, the necessities to study experiments further are also analyzed.关键词
三点弯/小试样/数值模拟/蠕变性能Key words
three-point bending/small specimen/numerical simulation/creep properties分类
数理科学引用本文复制引用
庄法坤,周帼彦,涂善东..三点弯小试样测试材料蠕变性能的方法[J].华东理工大学学报：自然科学版,2012,38(1):107-115,9.基金项目
国家自然科学基金 （）
上海市自然科学基金 （）
