无机材料学报Issue(2)：213-219,7.DOI:10.15541/jim20150410
两种方法评价管材力学性能的研究
Investigation on Two Methods for Evaluating Mechanical Properties of Tube Materials
摘要
Abstract
Elastic modulus and bending strength of tube materials were evaluated via compressing a split ring sample or a closed ring sample for different materials. Elastic modulus was estimated from the load-displacement relationship and sample dimensions in the range of elasticity, while bending strength was derived through the critical load at frac-ture. In this work, four tube materials were divided in two groups to research the applicable scopes of two methods. The results indicate that the split ring is suitable for materials with high brittleness and low limit strain, while the closed ring is available for low-stiffness materials. Comparison with the three-point bending data demonstrated the va-lidity and convenience of two methods with the respective applicable range.关键词
弹性模量/弯曲强度/缺口环/闭口环/管材Key words
elastic modulus/bending strength/split ring/closed ring/tube materials分类
化学化工引用本文复制引用
刘钊,包亦望,万德田,胡春林,马德隆,田远..两种方法评价管材力学性能的研究[J].无机材料学报,2016,(2):213-219,7.基金项目
National Natural Science Foundation of China (51172221,51472227) （51172221,51472227）
Major Program of Scientific Instrument and Equip-ment Development of China (2011YQ140145) （2011YQ140145）
National High Technology Research and Development Program of China (863 Program,2015AA034204) （863 Program,2015AA034204）
